Heartmate 3 Power Survival Guide: Solutions for LVAD Emergencies & Off-Grid Living

Introduction

After my mother received a life-saving LVAD, I quickly realized the crucial importance of managing the HeartMate 3 power needs. I found surprisingly little readily available information on creating a comprehensive backup power system. This guide is designed to help caregivers, family members, and patients build a secure, user-friendly backup power system for the HeartMate 3, preventing interruptions during outages or emergencies. It explores multiple layers of power redundancy, including batteries, uninterruptible power supplies (UPS), and generators. I’ve also shared this guide and started a discussion on the r/LVAD subreddit: HeartMate 3 Backup Power: My Tested Setup & Complete Guide

I’ve used tools like an AC WiFi Watt Meter to gather accurate power data, providing a practical, step-by-step approach. Whether you’re new to LVADs or experienced, this guide offers clear explanations and actionable steps. My mom’s HeartMate 3 is set to a pump speed of 4900 RPM; the data presented reflects that setting, but the general recommendations remain broadly applicable regardless of your specific pump speed. However, it’s important to note that different pump speeds will affect battery life and the runtime of backup power solutions.

Important Disclaimers and Considerations:

• Informational Purposes Only: This guide is based on my personal research and experience and is for informational purposes only. It is not medical advice.
• Consult Your LVAD Team: Always consult your LVAD team or a qualified medical professional before making any changes to your power management plan or using backup power solutions.
• Manufacturer Instructions: Always follow the official instructions from Abbott (HeartMate 3 manufacturer) and the makers of any backup power equipment.
• Personal Responsibility: You are responsible for your own safety and the proper operation of your HeartMate 3 and backup power equipment. Thoroughly test any backup system before relying on it.
• “Plug it into the Wall” Recommendation: Your LVAD team may advise only plugging the MPU directly into a wall outlet. This simplifies troubleshooting. However, even in hospitals, surge protectors and UPS systems are often used. Clean, stable power is essential. My approach, based on testing, research, and the observed use of surge protection in a hospital setting, prioritizes a UPS with LiFePO4 batteries and pure sine wave technology.
• No Liability: While this guide is intended to help, I cannot assume any liability for issues or damages resulting from following it.

Understanding Basic Electrical Terms
To best use this guide, let’s review some basic electrical terms: voltage, current (amps), and power (watts). Think of electricity like water in a pipe:

• Voltage (V): Like water pressure, voltage is the electrical “force.” US outlets provide ~120V. The HeartMate 3 uses this standard voltage. Recommended backup solutions in this guide all provide a pure sine wave output – a smooth, consistent voltage wave, essential for sensitive electronics.
• Current (Amps or A): Like the amount of water flowing, current is the rate of electrical flow. Higher amperage means more current.
• Power (Watts or W): The overall rate of energy transfer. It’s calculated: Power (W) = Voltage (V) * Current (A)

Heartmate 3 Power Summary
The HeartMate 3 system has two main components that draw power from a wall outlet: the Mobile Power Unit (MPU) and the Universal Battery Charger (UBC). The MPU, used primarily during sleep, draws very little power, averaging ~6.47 watts (peaking around 10 watts). In contrast, the UBC, used to charge the external batteries, draws significantly more power, especially during the initial charging phase, where it can peak at around 157 watts when charging four batteries. Voltage remains stable for both devices, and current draw is within safe limits when used with the recommended backup solutions and a dedicated circuit.

Understanding Circuit Capacity
Every electrical circuit in your home has a maximum amperage rating (usually 15A or 20A) – the maximum current it can safely handle. All devices on a circuit contribute to the total current draw. Exceeding the rating trips the circuit breaker (or blows a fuse) to prevent overheating. The HeartMate 3 system, including backup power components (UPS, portable power station), should be plugged into a dedicated 15A or 20A circuit, meaning no other significant appliances share that circuit. Consult a qualified electrician if you are unsure about your home’s wiring.

To create a backup power plan, you do not need to be an electrical engineer. The key is choosing a UPS or portable power station with a sufficient wattage rating to handle the MPU, the UBC, and any other essentials simultaneously. All the recommended solutions in this guide provide the correct voltage and a pure sine wave. As long as the combined wattage of all devices connected to your chosen backup power solution (and ultimately to the wall outlet) is within the capacity of that solution, and you are using a dedicated, properly rated circuit, the amperage draw will be within safe limits.

To make the planning process even easier, I’ve created a companion HeartMate 3 Power Station Calculator worksheet (available as a Google Sheet). This interactive tool allows you to personalize the calculations based on your HeartMate 3’s system controller wattage and your chosen backup power solutions. The worksheet automatically estimates battery runtime, UPS runtime, power station runtime, and the number of battery charging cycles you can expect, giving you a clear picture of your system’s capabilities during an outage. You can find the worksheet here:
https://docs.google.com/spreadsheets/d/1xzAAoruoOS11tMDaluE3NoUHVs-jJOZ_3GYGSMg6pmQ/edit?usp=sharing

Heartmate 3 Power Overview

The HeartMate 3 power system is designed to provide a continuous and reliable power supply to the implanted pump, ensuring uninterrupted operation. It consists of several key components that work together to deliver and manage power:  

• Implanted Pump: This is the core of the system, a mechanical pump implanted in the chest that assists the heart in circulating blood throughout the body.
• System Controller: The system controller is the “brain” of the system, monitoring and controlling the pump’s operation. It also houses an internal backup battery that provides approximately 15 minutes of power in case of a complete power failure. This internal battery is not the primary source of backup power; it provides a short window to connect to external batteries or a UPS.
• Mobile Power Unit (MPU): The MPU is a portable unit that allows the HeartMate 3 to run directly off AC power and charges the system controller’s internal battery. It’s typically used at night when plugged into a wall outlet.
• Universal Battery Charger (UBC): The UBC is a dedicated charger for the external batteries. It can charge up to four batteries simultaneously and is typically used to charge batteries for mobile use during the day.
• Batteries: The HeartMate 3 uses two external 14-volt lithium-ion batteries at a time to provide power for mobile operation. These batteries are inserted into the system controller via battery clips.

The HeartMate 3 system’s multiple components (AC power, MPU, UBC, external and internal batteries) provide layers of redundancy for continuous operation. However, both the MPU and UBC need AC power. Your backup plan should prioritize providing continuous AC power to these devices, ensuring you can always charge batteries and power the system controller, even during outages.

Mobile Power Unit (MPU)

The Mobile Power Unit (MPU) is a vital component of the HeartMate 3 system. It serves two main purposes: it allows the HeartMate 3 to run directly from a standard 120V AC wall outlet, and it maintains the charge of the system controller’s internal backup battery. The MPU itself has a small display and provides audio alarms to alert you to any system status changes. Importantly, the MPU does not directly power the implanted pump during a power outage. In the event of a power failure, the system automatically switches to the system controller’s internal 15-minute backup battery, and then to the external batteries if properly connected.

MPU Power Consumption
Extensive testing with an AC WiFi Watt Meter (at a pump speed of 4900 RPM) revealed the following key power consumption metrics:

• Average Power Consumption: 6.47 watts
• Maximum Power Consumption (Initial Spike): 10.15 watts
• Typical Range: 5.48 – 7.46 watts
• Voltage: ~117V
• Current: 0.08 – 0.09 amps

A brief power spike, up to around 10.15 watts, occurs shortly after connecting the MPU. This is likely due to the initial charging of the system controller’s internal battery. After this, power consumption stabilizes within the typical range.

When the MPU is idle (not connected to the system controller), it draws no measurable power. The stable power draw during operation likely supports communication, data processing, and system monitoring functions. Note: Different pump speeds may result in slightly different power consumption.

Backup Power Implications
Because the MPU relies on AC power, your backup power plan must ensure a continuous AC supply. A UPS (Uninterruptible Power Supply) with pure sine wave output is highly recommended. This protects the MPU from power surges and fluctuations, and provides short-term backup power during outages.

When selecting a backup solution, ensure it can provide:

• Sufficient Wattage: At least 10 watts to handle the MPU’s peak power consumption. (All recommended UPS models easily exceed this.)
• Pure Sine Wave Output: To prevent damage to the MPU’s sensitive electronics.

By understanding the MPU’s functions and power consumption, you can make informed decisions about your backup power plan, ensuring reliable operation of your HeartMate 3 system. Just as the MPU requires a stable AC power source, so does the Universal Battery Charger (UBC), which is responsible for keeping your external batteries charged and ready. Let’s examine the UBC’s power needs next.

Universal Battery Charger

The Universal Battery Charger (UBC) is essential for keeping your HeartMate 3 external batteries charged and ready for use. It’s designed to charge up to four batteries simultaneously. The HeartMate 3 uses two batteries at a time.

UBC Charging Behavior and Power Consumption
Based on testing with four batteries starting at approximately 40% charge, the UBC exhibits the following power consumption characteristics:

• Peak Power: 156.89W (occurs during the initial charging phase)
• Average Power: ~74.4W (over the entire charging cycle)
  • Total Charge Time (4 Batteries from 40%): ~2 hours and 35 minutes
• Total Energy Consumption (4 Batteries from 40%): ~192 Wh
• Idle Power Draw: 10-12 Watts

The UBC has an initial high-power charging phase, lasting approximately 30-45 minutes, where power draw is at its highest. After this, power consumption gradually decreases as the batteries approach full charge. The UBC also performs battery management tasks, such as balancing the charge between cells and monitoring battery health, which contribute to its overall energy consumption. Charging times can vary depending on the initial charge level of the batteries; fully depleted batteries may take 3-4 hours to charge completely.

Backup Power Implications
When choosing a backup power solution for the UBC, the most critical factor is ensuring it can handle the peak power draw of 156.89 watts. This guarantees reliable charging, even during the initial high-power phase. While the average power consumption is lower, basing your backup solution on the peak power provides a crucial safety margin.

The backup solution must also provide clean and stable 120V AC power with a pure sine wave output, just like a standard wall outlet. Avoid “modified sine wave” power sources, as they can damage sensitive electronics. Features like Automatic Voltage Regulation (AVR) are also beneficial, as they help maintain a consistent voltage level, protecting the UBC from fluctuations.

Key Takeaway
The UBC is a crucial component of the HeartMate 3 power system. Understanding its charging behavior and power requirements is essential for maintaining a reliable power source. By selecting a backup power solution that meets the UBC’s needs (peak power of 156.89W, pure sine wave output, 120V AC), you can ensure that the batteries are always charged and ready, providing peace of mind and enhancing the quality of life for HeartMate 3 users. Having explored the individual power needs of the MPU and UBC, it’s time to combine this information into a comprehensive, multi-layered backup power plan, ensuring redundancy and adaptability for various outage scenarios.

HeartMate 3 Power Management

A reliable and easy-to-manage power plan is essential for anyone using a HeartMate 3 LVAD, particularly for older individuals and their caregivers. This plan outlines strategies for both daily use and emergencies, leveraging various backup power solutions to ensure continuous pump operation. It’s designed to be adaptable to individual needs and different levels of emergencies, from brief power fluctuations to prolonged outages. While based on my mother’s HeartMate 3 settings (pump speed 4900), the principles apply broadly. Keep in mind that higher pump speeds will draw more power, impacting battery life and backup requirements, so adjust accordingly. This plan prioritizes redundancy, ease of use, and readily available power sources. It incorporates a tiered backup system to address outages of varying durations. Each tier will be explained in detail, including its purpose, recommended equipment, and usage scenarios. Key to this plan is strategic battery management. You’ll have options for using your external batteries and the MPU, allowing you to maximize runtime and adapt to the specific circumstances of an emergency. Remember to discuss any changes to your usual routine with your LVAD team.

Mobile Power (External Batteries): During waking hours and any time mobility is required, the HeartMate 3 should be powered by the external batteries. It’s crucial to have an adequate supply of charged batteries to cover all daily activities. We recommend having at least three sets of batteries: one set in use, one set charging, and one set as a fully charged backup. This ensures continuous operation and allows for a simple rotation system to maximize battery lifespan. When a set of batteries reaches approximately 20-30% charge, swap them out for the fully charged backup set. Place the used batteries in the UBC to charge overnight or until full. Labeling the battery sets (e.g., “A,” “B,” “C”) can make this rotation easier to manage. When swapping batteries, be sure to follow the procedure outlined in the HeartMate 3 patient manual to avoid any interruptions in pump operation. Always carry a spare set of charged batteries when leaving the house.

MPU Connection (Sleep/Rest): During sleep or periods of rest when mobility is not required, connect the MPU to a high-quality UPS (Uninterruptible Power Supply) with pure sine wave output. A UPS is preferred over a standard surge protector as it provides backup power during short outages, ensuring uninterrupted operation of the HeartMate 3. Using the MPU overnight allows the HeartMate 3 to run from AC power and maintains the system controller’s internal backup battery, which provides approximately 15 minutes of power in case of an emergency. This practice also gives the external batteries a break and allows for consistent charging, which can contribute to longer battery life. If using just a surge protector, it is important to protect the MPU from power surges and fluctuations with a high-quality surge protector that provides a pure sine wave output, which is especially important for older homes or areas with less stable power grids.

Battery Charging: Establish a regular battery charging schedule using the UBC. While charging used batteries overnight is common, you can also charge batteries during the day while you are using battery power for the HeartMate 3 and the MPU is not in use. The UBC is the only method for charging external batteries, ensuring they are properly conditioned and maintained. Consistent charging also allows for regular assessment of battery health. But what happens when the power goes out? The following section outlines a comprehensive emergency power plan to ensure continuous operation of your HeartMate 3.

Emergency Heartmate 3 Power Plan

Daily Power Needs and Backup Capacity
To effectively plan your backup power system, it’s helpful to estimate your minimum daily power requirements. This will depend on your chosen usage strategy during an emergency. Here are two example scenarios:

Scenario 1: Using the MPU for Sleep (10 hours) and Charging 2 Batteries Daily

• MPU Power Consumption (10 hours): 6.47W * 10 hours = 64.7 Wh
• UBC Power Consumption (2 batteries): ~192 Wh
• Total: ~257 Wh per day

Scenario 2: Relying Solely on Batteries and Charging 4 Batteries Twice a Week

• UBC Power Consumption (4 batteries): ~384 Wh
• Twice Weekly Charging: 384 Wh * 2 = 768 Wh per week
• Daily Average: 768 Wh / 7 = ~109.7 Wh per day

These calculations provide a baseline for your daily power needs, highlighting the importance of having a UPS for short-term outages and a larger-capacity power source, like a portable power station, for extended outages. When selecting a UPS or portable power station, ensure they have sufficient capacity to meet these requirements, with an added safety margin. Remember, these are estimates; actual power consumption may vary based on factors like pump speed and battery age. You may also need additional capacity for other essential devices.

Tiered Backup Approach
To ensure continuous power for the HeartMate 3 during emergencies, this plan utilizes a tiered backup approach. This system is crucial because it provides:

• Redundancy: Multiple backup power sources ensure that if one fails, you have others to fall back on – vital for a life-sustaining device.
• Adaptability: Different outage scenarios require different solutions. A tiered approach allows you to adapt.
• Flexibility: You can choose to rely solely on external batteries to conserve power, or use the MPU as usual. The key is to have a tested, comfortable plan.
• Peace of Mind: Knowing you have multiple layers of backup power reduces anxiety.

How the Tiers Work Together:

• Tier 1 (Short Outages): Provides immediate, seamless power for short outages using a UPS, ensuring uninterrupted HeartMate 3 operation.
• Tier 2 (Extended Outages): Offers a longer-lasting power source through a portable power station, primarily for charging external batteries via the UBC.
• Tier 3 (Prolonged Outages): Employs larger power stations or generators.

Each tier builds upon the previous one, creating a robust and agile system. As part of your emergency preparedness, make sure your local Fire & EMS are aware that you have an LVAD, and know your local emergency services’ phone number. Also, coordinate with your LVAD clinic and team to discuss contingency plans for prolonged outages, including emergency contacts and procedures.

Tier 1: Short Outages – Seconds to Hours: UPS

A UPS (Uninterruptible Power Supply) is crucial for the HeartMate 3 because it prevents any interruption to the pump’s operation during short power outages. It acts as a bridge between the wall outlet and the device, providing battery backup when the main power fails.

Types of UPS Systems:

• Standby UPS: The most basic type. It switches to battery power with a brief transfer time (milliseconds) and often produces a modified sine wave, which is not recommended for the HeartMate 3.
• Line-Interactive UPS: More advanced, with Automatic Voltage Regulation (AVR) to correct minor power fluctuations without switching to battery. Offers faster transfer times and many models produce a pure sine wave output, suitable for sensitive electronics.
• Online UPS: The most advanced type. Continuously powers devices from the battery, providing a seamless transition with zero transfer time and always a pure sine wave output.

For the HeartMate 3, a line-interactive UPS with LiFePO4 batteries and pure sine wave output is the ideal solution. LiFePO4 batteries offer a longer lifespan and are safer than lead-acid batteries.

Connecting and Capacity
Connect both the HeartMate 3’s Mobile Power Unit (MPU) and the Universal Battery Charger (UBC) to the UPS. For short outages, a UPS with a capacity of at least 1000VA / 600W should be sufficient. A higher capacity is recommended if you plan on running other devices from the UPS.

UPS Comparison:

	GoldenMate 600W	GoldenMate 800W	CyberPower M550L	CyberPower CP1500PFCLCD	APC BR1500MS2
Type	Line-Interactive/ Online	Line-Interactive/ Online	Line-Interactive	Line-Interactive	Line-Interactive
Capacity	750VA / 600W	1000VA / 800W	550VA / 330W	1500VA /1000W	1500VA / 900W
Battery Type	LiFePO4	LiFePO4	Lead-Acid	Lead-Acid	Lead-Acid
Battery Capacity	153.6 Wh	230.4 Wh	~95 Wh	~192 Wh	~216 Wh
Waveform	Pure Sine Wave	Pure Sine Wave	Pure Sine Wave	Pure Sine Wave	Pure Sine Wave
MPU Runtime	~18 hours	~27.5 hours	~9 hours	~19 hours	~21 hours
Charge Cycles (2 Batteries)	~0.6	~1	~0.4	~1	~1.1
AVR	Not Specified	Not Specified	Yes	Yes	Yes
Outlets	8	8	4	12	12
Remote Monitoring	No	No	No	Yes	No
Medical-Grade	No	No	Yes	No	No
Price	$250-350	$350-450	$450-$550	$250-$300	$250-350

UPS Recommendations:

• Primary Recommendation: The GoldenMate 800W (UPS5-1K8-120L) and 600W (UPS5-750-120L) are the top recommendations. They feature:
  • LiFePO4 Batteries: Longer lifespan and enhanced safety.
  • Pure Sine Wave Output: Essential for the HeartMate 3.
  • Seamless Switching: The 800W model, during testing, showed no power interruption.
  • Extended Runtime: The 800W model offers an estimated MPU runtime of approximately 27.5 hours [(230.4 Wh * 0.8 efficiency) / 6.47W = ~28.5 hours]. The 600W model will provide 18 hours [(153.6 Wh * 0.8) / 6.47 = ~19 hours]
• Note on Charging: While connected to the UPS, you can plug in your UBC to charge 2 batteries. However, doing this will decrease the UPS MPU runtime.
• Medical-Grade Option (Lead-Acid): The CyberPower M550L is UL 60601-1 certified for medical use, providing the highest safety assurance. However, it has lower capacity, a lead-acid battery, and a higher price.
• Other Reputable Options (Lead-Acid): The CyberPower CP1500PFCLCD, APC BR1500MS2, and Tripp Lite SMART1500LCD are well-regarded consumer-grade models with pure sine wave output and AVR. They offer a good balance of performance and affordability but have shorter lifespans than LiFePO4 models.

LiFePO4 vs. Lead-Acid Batteries:

	LiFePO4 Batteries	Lead-Acid Batteries
Lifespan	Longer (2000-5000 cycles or more)	Shorter (300-500 cycles for standby, 500-1000 cycles for cyclic)
Safety	More stable, less prone to overheating or explosion	Less stable, potential for overheating or gassing
Weight	Lighter	Heavier
Maintenance	Low	Higher (may require periodic checks)
Cost	Typically higher upfront	Typically lower upfront
Technology	Newer, still maturing in UPS applications	Established, widely used in UPS systems

Key Decision Factors:

• Budget: LiFePO4 models are more expensive upfront but may offer better long-term value.
• Runtime Needs: The GoldenMate 800W provides the longest estimated MPU runtime.
• Risk Tolerance: Consider if the added safety of LiFePO4 or medical-grade certification is worth the extra cost.
• Remote Monitoring: The CyberPower CP1500PFCLCD and Tripp Lite SMART1500LCD offer this feature.

Tier 2: Extended Outages – Several Hours to Days: Portable Power Stations

For power outages lasting several hours to days, a portable power station is the recommended solution. They are easy to use, operate quietly, and offer sufficient mobility for use around the home.

Capacity and Recommendations:
While a larger capacity is always beneficial, for this tier, portability is a key consideration. Therefore, a power station with a capacity of at least 300Wh is recommended, providing a balance between runtime and ease of transport.

• Primary Recommendation: While I found many good options, my ultimate choice for my mom was the Jackery Explorer 300 Plus. It can power the MPU for approximately 36 hours and fully charge two batteries more than once. I also recommend considering the Jackery Explorer 700 Plus. I did not choose this for my mom due to its weight, 22.05 lbs. It provides a substantial 680.96 Wh of capacity, capable of powering the HeartMate 3 MPU for approximately 87 hours or providing 3 full charges of two fully depleted batteries.
• Other Options: Several reputable brands offer portable power stations in various capacities. See the comparison tables below for more details.

Jackery Portable Power Comparison:

	Jackery 100+	Jackery 300+	Jackery 700+	Jackery 1000+	Jackery 2000+
Capacity (Wh)	99	288	680.96	1264.64	2042.8
Wall Recharge Time	1.8 H	2 H	1.75 H	1.7 H	2H
Car Recharge Time	1.9 H	5.5 H	6.8 H	7 H	8H
Solar Recharge Time (0-80%)	2 H (1 panel)	4 H (1 panel)	7.5 H (1 panel)	7 H (2 panels)	2H (6 panels)
Weight (lbs)	2.13	11	22.05	32	61.5
Size (HxWxL) (in)	5.24 x 3.35 x 3.74	9.1 x 6.1 x 7.1	10 x 10.3 x 13.4	11.14 x 10.24 x 14	14.7 x 18.6 x 14.1
Expandable Capacity	No	No	No	Yes (up to 5kWh)	Yes (up to 12kWh)
Output (Rated/Surge) (W)	128 / 256	300 / 500	1000 / 2000	2000 / 4000	3000 / 6000
Operating Temperature (°F)	14-113	14-113	32-113	14-113	-4 to 113
Estimated Hours on MPU	12.6	36.7	87	162	261
Estimated 2-Battery UBC Charging Cycles	0.4	1.3	3.1	5.8	9.3
	$169	$429	$679	$1,499	$1,978
	🛒 Amazon	🛒 Amazon	🛒 Amazon	🛒 Amazon	🛒 Amazon

While the Jackery Explorer 700 Plus and 300 Plus are excellent choices, other manufacturers offer competitive portable power stations in a similar weight class, providing alternative options with varying features and capacities.

Here’s a comparison of several models around the 10 lb range:

	Jackery 300+	Anker 521	EcoFlow RIVER 2	Bluetti EB3A
Weight (lbs)	11	9.6	7.7	10.14
Capacity (Wh)	288	256	256	268
Output (Rated/Surge) (W)	300 / 500	200 / 400	300 / 600	600 / 1200
Battery Type	LiFePO4	LiFePO4	LiFePO4	LiFePO4
Wall Recharge Time (Hrs)	2	~4.1	~1	~1.3-1.8
Estimated Hours on MPU	36.7	~32.4	~32.4	~34
Estimated 2-Battery UBC Charging Cycles	1.3	~1.2	~1.2	~1.2
Pass-Through Charging	Yes	Yes	Yes	Yes
	$429	$359	$359	$350

Using a Portable Power Station:

• Priority: The primary role of the portable power station in Tier 2 is to recharge the HeartMate 3 external batteries using the UBC. Always prioritize charging the HeartMate 3 batteries first.
• Other Devices: You can also power other essential devices like phones, CPAP machines, or oxygen concentrators, but be mindful of remaining capacity.
• Solar Charging: Many portable power stations, including the Jackery models, are compatible with solar panels (sold separately), offering a way to recharge during extended outages, even without AC power.

Key Considerations for Tier 2:

• Capacity: Choose a model with enough capacity to recharge your batteries multiple times.
• Weight and Portability: This tier prioritizes portability, so consider the weight and size.
• Solar Charging: Consider models with solar charging capability.
• Outlets: Ensure enough outlets for your needs.

Tier 3: Prolonged Outages/Disaster Scenarios: Long-Term Power Solutions

In situations where power may be out for an extended period (multiple days or weeks), or during disaster scenarios, a combination of backup solutions and a well-defined emergency plan are crucial. This includes having multiple backup power sources and a plan for relocating to a facility with power, if necessary.

High-Capacity Portable Power Stations
For prolonged outages, higher-capacity portable power stations offer a viable alternative to generators, especially when minimizing noise and emissions is important. These power stations provide substantial power reserves and some models can be expanded with additional battery units for even greater capacity. They also offer the significant advantage of being rechargeable via solar panels (sold separately), providing a renewable energy source when fuel for generators may be limited.

Jackery offers a range of high-capacity models suitable for Tier 3:

• Jackery Explorer 1000 Plus: Offers 1264 Wh of capacity, expandable up to 5kWh with additional batteries. Provides an estimated 162 hours of MPU runtime or 5 full charges of two batteries.
• Jackery Explorer 1500 Pro: A powerful option with 1512 Wh of capacity (not expandable). Provides approximately 193 hours of MPU runtime or 7 full charges of two batteries.
• Jackery Explorer 2000 Plus: Boasts 2042 Wh of capacity, expandable up to a massive 12 kWh. Offers approximately 261 hours of MPU runtime or 9 full charges of two batteries.
• Jackery Explorer 3000 Pro: The top-of-the-line model with 3024 Wh capacity (not expandable). Provides an estimated 386 hours of MPU runtime or 13 full charges of two batteries.

High Capacity Jackery Models:

	Jackery Explorer 1000 Plus	Jackery Explorer 2000 Plus	Jackery Explorer 3000 Pro
Capacity (Wh)	1264 Wh	2042 Wh	3024 Wh
Expandable Capacity	Yes (up to 5 kWh)	Yes (up to 12 kWh)	No
Output (Rated/Surge) (W)	2000W / 4000W	3000W / 6000W	3000W / 6000W
AC Outlets	3	4	4
Solar Charging Input	Up to 800W	Up to 1400W	Up to 1400W
Recharge Time (Wall)	~1.7 Hours	~2 Hours	~2.4 Hours
Weight (lbs)	32	61.5	63.9
Dimensions (HxWxL) (in)	11.14 x 10.24 x 14	14.7 x 18.6 x 14.1	18.6 x 15.1 x 13.1
App Control	Yes	Yes	Yes
Approx. Price (USD)	$1000-1200	$1800-2200	$2500-2800
Estimated MPU Runtime	~162 hours	~261 hours	~386 hours
Estimated 2-Battery Charging Cycles	~5	~9	~13

Using a Portable Power Station in Tier 3:

• Primary Role: Serve as a central power hub, recharging multiple sets of HeartMate 3 batteries via the UBC, powering essential devices, and potentially running some larger appliances.
• Expandability: The 1000 Plus and 2000 Plus models offer expandability with extra batteries, making them suitable for very long outages.
• Solar Charging: Utilize solar panels (sold separately) to recharge the power station, providing a renewable energy source.

Alternative High-Capacity Portable Power Stations
While the Jackery Explorer series offers compelling options for Tier 3, several other reputable manufacturers produce high-capacity portable power stations with comparable specifications and features.

This table compares the Jackery Explorer 2000 Plus to models from EcoFlow, Bluetti, Anker, and Goal Zero, allowing you to evaluate different options and choose the best fit for your needs:

	Jackery 2000 Plus	EcoFlow DELTA 2 Max	Bluetti AC200MAX	Anker SOLIX F2000
Capacity (Wh)	2042 Wh	2048 Wh	2048 Wh	2048 Wh
Expandable Capacity	Yes (up to 12 kWh)	Yes (up to 6 kWh)	Yes (up to 8 kWh)	Yes (up to 4096 Wh)
Output (Rated/Surge) (W)	3000W / 6000W	2400W / 4800W	2200W / 4800W	2400W / 3600W
Battery Type	LiFePO4	LiFePO4	LiFePO4	LiFePO4
AC Outlets	4	6	4	12
USB-A Ports	2	2	2	2
USB-C Ports	2 (100W)	4 (2 @ 100W each)	1 (100W)	3 (1 @ 100W each)
Car Port (12V)	1	1	1	1
Other Ports		2 @ DC5521	1 @ 30A RV;
Solar Charging Input	Up to 1400W	Up to 1000W	Up to 900W	Up to 1000W
Recharge Time (Wall)	~2 Hours	~1.5 Hours	~2 Hours	~2 Hours
Weight (lbs)	61.5	50	62	67.2
Dimensions (HxWxL) (in)	14.7 x 18.6 x 14.1	11.1 x 9.5 x 19.6	16.5 x 11 x 15.2	14.4 x 16.6 x 9.8
App Control	Yes	Yes	Yes	Yes
Warranty	5 Years	5 Years	2 Years	5 Years
Approx. Price (USD)	$1800-2200	$1800-2000	$1700-1900	$1700-2000
Estimated MPU Runtime	~261 hours	~261 hours	~261 hours	~261 hours
Estimated 2-Battery Charging Cycles	~9	~9	~9	~9

Here is a summary of each model and some key decision factors:

• The Jackery Explorer 2000 Plus, EcoFlow DELTA 2 Max, and Bluetti AC200MAX offer the best overall performance in this section, offering similar storage capacities, output, and the advantage of using LiFePO4 batteries.
• EcoFlow DELTA 2 Max: The DELTA 2 Max closely matches the Jackery 2000 Plus in terms of capacity and features. It has a slightly faster wall recharge time and more AC outlets. Its expandability up to 6 kWh makes it suitable for users who anticipate needing a significant amount of backup power.
• Bluetti AC200MAX: The AC200MAX is another powerful option with 2048 Wh of capacity and expandability up to 8 kWh. It also has a unique 30A RV outlet and rapid solar charging capabilities. However, it has a slightly lower continuous AC output compared to the Jackery and EcoFlow models.
• Anker SOLIX F2000: The Anker SOLIX F2000 is a reliable option, that has a wheeled design. It offers app control, and has a 5-year warranty, adding to its appeal for long-term use.
• Goal Zero Yeti 3000X: The Yeti 3000X stands out with its higher base capacity of 3032 Wh but uses Lithium-ion NMC batteries.

Key Considerations:

• Capacity and Expandability: Consider how much power you’ll need for prolonged outages and whether expandability is important.
• Output Power: Make sure the power station can handle the wattage of the devices you intend to run.
• Battery Type: LiFePO4 batteries (used in most models listed) are generally preferred over Lithium-ion NMC for their longer lifespan and safety.
• Solar Charging: All models support solar charging, but the maximum input varies.
• Portability: While all these models are less portable than those in Tier 2, weight and dimensions still matter.

Recommendation:

The Jackery Explorer 2000 Plus is a highly recommended option for Tier 3 due to its excellent capacity, expandability, high power output, and competitive price. However, the EcoFlow DELTA 2 Max, Bluetti AC200MAX, and Anker SOLIX F2000 are also strong contenders, each with its own strengths. Ultimately, the best choice depends on your specific needs and priorities.

Portable Inverter Generators

For Tier 3 (prolonged outages), an inverter generator is a recommended backup power solution, providing clean, stable power (pure sine wave with low THD) suitable for the HeartMate 3 and other sensitive electronics.

Portable Gas Generators:

	Honda EU2200i	EF2400	GP2500i	Champion 2500	iGen2500
Fuel Type	Gasoline	Gasoline	Gasoline	Gasoline/Propane	Gasoline
Running Wattage	1800 W	2000 W	2200 W	1850 W Gas 1665 W -LP	2200 W
Starting Wattage	2200 W	2400 W	2500 W	2500 W Gas 2250 W LP	2500 W
Runtime on Full Tank	~3.2-8.1 hours	~8.6 hours @ 1/4 load	~8 hours @ 25% Load	~11.5 hours @ 25% load	~10 hours @ 25% load
Tank Capacity (gallons)	0.95	1.6	1	1.1	1
Noise Level	48-57 dB	53-60 dB	Not specified	53 dBA	52 dBA
Parallel Capability	Yes	No	Yes	Yes	Yes
Weight (lbs)	47	75	48	39	46.3
Dimensions (LxWxH) (in)	20 x 11.4 x 16.7	20.8 x 16.5 x 19.8	19 x 11 x 17	22.4 x 12.8 x 18.3	19.7 x 11.2 x 17.9
THD	<3%	<3%	<3%	<3%	<3%
Approx. Price	$1100-1300	$1400-1600	$650-800	$480-650	$600-700

Key Considerations:

• Wattage: Choose a generator with sufficient running wattage for your needs (the listed models are in the 2000-2500 watt range).
• Fuel Type: Most inverters use gasoline, but the Champion 2500-Watt Dual Fuel offers propane flexibility, a benefit during emergencies. Propane can be stored safely, with no degredation, unlike gas.
• Runtime: Consider the generator’s runtime on a full tank and refueling frequency. You may have to refuel your generator every few hours.
• Noise Level: Inverter generators are quieter than conventional generators. The Honda EU2200i is known for its exceptionally quiet operation, and may be the best choice if sound is a factor.
• Portability: Consider weight and size, especially if you might need to move the generator.
• Parallel Capability: Some models allow connecting two generators in parallel for double the power output.
• Price: Prices vary significantly.

Recommendation:

The Honda EU2200i is highly recommended for its reliability, clean power, quiet operation, and fuel efficiency. The Champion 2500-Watt Dual Fuel is a strong alternative if you want fuel flexibility (gasoline and propane). Other models may be suitable depending on your specific needs and budget; for example, if higher wattage is needed, the Yamaha EF2400iSHC might be considered, despite its higher weight.

Strategic Use: Use the generator strategically to charge your portable power station, multiple sets of external batteries via the UBC, and other essential devices. Run the generator for a few hours at a time to maximize fuel efficiency, targeting to top off batteries rather than fully depleting and recharging them each time.

Safety: Always follow the manufacturer’s instructions. Ensure proper ventilation and never operate a gasoline generator indoors or in an enclosed space.

Natural Gas Generators

For a permanent, whole-house backup power solution during prolonged outages (Tier 3), a natural gas generator is an excellent option. These generators connect directly to your home’s natural gas line and start automatically when the power goes out, providing a seamless transition to backup power.

Let’s take a look at several popular models:

	Generac Guardian 24kW	Generac Guardian 26kW	Kohler 20RCA
Wattage (kW)	24 kW	26 kW	20 kW
Fuel Type	Natural Gas/LP	Natural Gas/LP	Natural Gas/LP
Automatic Transfer Switch	Sold Separately	Included	Sold Separately
Noise Level (dB)	67 dB	67 dB	69 dB @ 7 meters
Enclosure	Aluminum	Aluminum	Aluminum
Dimensions (LxWxH) (in)	48 x 25 x 29	48 x 25 x 29	48 x 26.2 x 32.8
Approx. Price (USD)	$6,000-6,500	$6,500-$7,000	$5,500-$6,000
Monitoring	Mobile Link™	Mobile Link™	OnCue® Plus

Model Breakdown:

• Generac Guardian Series: Leading brand. The 24kW (7210) and 26kW (7291) can power most homes, including the HeartMate 3 and other appliances. Feature remote monitoring.
• Kohler 20RCA: Another reputable brand. The 20RCA offers comparable power and remote monitoring.
• Champion 14kW: A more budget-friendly option, but with less power and no remote monitoring capabilities.

Key Considerations:

• Wattage: Choose a generator with sufficient wattage for your needs. Consult a qualified electrician.
• Automatic Transfer Switch (ATS): Essential for automatic operation; factor in the cost if not included.
• Noise Level: Consider the noise, especially if close to your home.
• Enclosure: Aluminum enclosures (Generac, Kohler) are generally more durable.
• Warranty: Compare manufacturer warranties.
• Remote Monitoring: A valuable feature for checking status and receiving alerts.
• Installation: Requires professional installation by a qualified technician, adding to the cost.
• Permits: Likely required; check with local authorities.

Recommendation:

The Generac Guardian series and Kohler 20RCA are both excellent choices, offering reliable performance and remote monitoring. The Champion 14kW is a budget option with less power and no monitoring. The best choice depends on your needs, budget, and natural gas availability.

Power Station Vs Gas

The Jackery Explorer 2000 Plus offers a compelling alternative to traditional generators for powering the HeartMate 3 during outages, particularly in terms of efficiency, noise, and emissions.

Here’s how it compares:

	Jackery 2000 Plus	Honda EU2200i	Generac GP3300	Generac 24kW
Fuel Type	Electric or Solar	Gasoline	Gasoline	Natural Gas/LP
Fuel Consumption	N/A (Rechargeable)	~0.1 – 0.15 gal/kWh	~0.15 – 0.2 gal/kWh	~0.05-0.1 gal/kWh (depends on load)
Noise Level (dB)	Very Quiet (around 30 dB)	48-57 dB	68-75 dB	67 dB
Emissions	None	Relatively lower	Higher	Lower than gas
Maintenance	Low	Moderate	Moderate	Moderate to High
Typical Wattage	3000W	1000-3000 W	2000-10,000 W	7,000-26,000 W
Portability	Portable (61.5 lbs)	High	Moderate	None (fixed installation)
Cost of Ownership	Low	Moderate	Moderate	High
Total Harmonic Distortion	<3%	<3%	15-25%	<5%
Expandability	Yes (up to 12kWh)	No	No	No
Solar Recharging	Yes	No	No	No

Analysis:

• Fuel Efficiency: Unlike generators that consume fuel, the Jackery 2000 Plus stores electricity in its LiFePO4 battery. While it requires electricity for recharging, it doesn’t have ongoing fuel costs like a generator, making it more cost-effective in the long run, especially if recharged via solar.
• Noise Level: The Jackery 2000 Plus operates virtually silently, a major advantage over even the quietest inverter generators. This is particularly important for users who are sensitive to noise or live in densely populated areas.
• Emissions: The Jackery produces zero emissions during operation, making it an environmentally friendly choice.
• Maintenance: The Jackery requires minimal maintenance compared to generators, which need regular oil changes, filter replacements, and other upkeep.
• Portability: While heavier than smaller portable power stations, the Jackery 2000 Plus is still considered portable, unlike fixed-installation natural gas generators. The Jackery also offers expandability not available with other generators.
• THD: The Jackery 2000 Plus provides clean, pure sine wave power with low THD, comparable to inverter generators and ideal for the HeartMate 3.
• Solar Recharging: A major advantage of the Jackery is its ability to be recharged via solar panels (sold separately). While optimal charging requires direct sunlight, solar panels can still generate some power even on cloudy days or with indirect light. This means that even in less-than-ideal conditions, the Jackery can still replenish its battery, albeit at a slower rate. This capability extends its usefulness for prolonged outages, even when relying on solar power alone. The effectiveness of solar charging will depend on factors like the panel’s wattage, the time of year, and your geographical location. However, with careful planning, the Jackery 2000 Plus, especially with its expandability, can be a viable solution for long-term power needs, reducing or potentially eliminating reliance on a generator.

When is the Jackery 2000 Plus a Good Choice?

• Extended Outages (Tier 2/3): When you need a reliable power source for several hours to multiple days.
• Prioritizing Quiet and Clean Power: When noise and emissions are major concerns.
• Solar Integration: When you want to utilize solar power for recharging, even if sunlight is not always optimal.
• Long-Term Power Independence: When you want a solution that can provide power for extended periods, reducing or eliminating the need for a generator, especially when combined with its expandability options.

The Jackery Explorer 2000 Plus offers a compelling alternative to traditional generators in many outage scenarios, particularly for HeartMate 3 users who value quiet operation, clean power, and ease of maintenance. Its expandability, solar charging capability (even in less-than-ideal conditions), and substantial capacity make it a strong contender for Tier 3 backup. While generators may still be necessary for the apocolypse, or when higher power output is required, the Jackery 2000 Plus, with careful planning and potentially with added battery capacity, can provide a significant degree of long-term power independence.

Car Inverter Option

A car inverter can be a backup option for powering the HeartMate 3 MPU or charging batteries during extended outages, using your vehicle as a power source.

Important Considerations:

• Pure Sine Wave: Choose a pure sine wave inverter to protect the HeartMate 3’s sensitive electronics.
• Wattage:
  • MPU Only: A 150W inverter is sufficient.
  • MPU and UBC: At least a 200W inverter is recommended (300-400W is preferable for a safety margin).
• Car Battery: Be mindful of your car battery’s capacity and health. Consider running the engine periodically to prevent excessive drain.
• Ventilation: Ensure the car is parked in a well-ventilated area when using the inverter with the engine running. Never operate in an enclosed space.

Recommended Car Inverters::

	BESTEK 300W	KRIËGER 400W	ENERGIZER 500W
Output Waveform	Pure Sine Wave	Pure Sine Wave	Pure Sine Wave
Continuous Power (W)	300W	400W	500W
Peak Power (W)	700W	800W	1000W
Outlets	2 AC, 2 USB	2 AC, 2 USB	2 AC, 2 USB
Connection	Cigarette Lighter	Cigarette Lighter & Battery Clamps	Cigarette Lighter & Battery Clamps
Approx. Price (USD)	$40-50	$65-75	$100-110

Notes:

• BESTEK 300W: A popular and reliable choice, providing sufficient power for both the MPU and UBC.
• KRIËGER 400W: Offers a bit more power and includes battery clamps for a direct connection.
• ENERGIZER 500W: More power that can handle more than the MPU and UBC at the same time.
• Pure Sine Wave: All listed models provide pure sine wave output, suitable for the HeartMate 3.
• Wattage: Ensure the inverter’s continuous power rating meets your needs (MPU only or MPU + UBC).

Using a Car Inverter:

1. Plug the inverter into your car’s cigarette lighter or connect it directly to the battery (for higher-wattage models).
2. Connect the MPU and/or UBC to the inverter’s AC outlets.
3. It is recommended to run the car engine while using the inverter, especially when charging batteries, to avoid draining the car battery.

Emergency Power Testing
Regular testing of your entire backup power system is crucial to ensure that all components are functioning correctly and that you are familiar with their operation before a real emergency occurs. This includes your UPS, portable power station(s), and generator (if applicable).

Testing Frequency
Conduct tests monthly or at least quarterly. More frequent testing is recommended if you live in an area prone to power outages.

Testing Procedure:

1. Consult Manuals: Refer to the user manuals for your specific UPS, portable power station, and generator models for detailed instructions on testing procedures.
2. Simulate a Power Outage:
   • UPS: Unplug the UPS from the wall outlet while the HeartMate 3 MPU is connected and powered on. Verify that the UPS seamlessly switches to battery power and that the MPU continues to operate without interruption. Monitor the UPS’s display for battery level and estimated runtime. Also, ensure that the UBC is charging while on UPS power.
   • Portable Power Station:
     • If using the power station to run the MPU directly (in a travel or temporary scenario), disconnect it’s AC power cord.
     • Connect the UBC to the power station and charge at least one set of HeartMate 3 batteries. Monitor the charging process and the power station’s battery level.
   • Generator: Start the generator according to the manufacturer’s instructions. Connect it to your transfer switch or directly to the devices you intend to power (following safe connection procedures). Verify that the generator is providing power and that all connected devices are functioning correctly. Run the generator for at least 20-30 minutes to ensure it operates properly under load.
3. Document Results: Keep a log of your test dates, the steps performed, and any observations or issues encountered. This will help you track the performance of your backup power system over time and identify any potential problems.

What to Check During Testing:

• UPS:
  • Seamless Switching: Verify that the HeartMate 3 MPU continues to operate without interruption when the UPS switches to battery power.
  • Runtime: Note the estimated runtime displayed on the UPS and compare it to the calculated runtime based on the MPU’s power consumption.
  • Alarms: Familiarize yourself with the UPS’s alarm sounds and what they indicate (e.g., low battery, overload).
• Portable Power Station:
  • Charging: Verify that the power station can charge the HeartMate 3 batteries via the UBC.
  • Runtime: If using the power station to run the MPU directly, monitor the runtime and compare it to the calculated estimates.
  • Solar Charging: If applicable, test the solar charging capability to ensure the panels and connections are working correctly.
• Generator:
  • Startup: Ensure the generator starts easily and runs smoothly.
  • Power Output: Verify that the generator is providing sufficient power to the connected devices.
  • Transfer Switch: If using a transfer switch, ensure that it switches between utility power and generator power correctly.

Importance of Testing:

• Ensures Reliability: Regular testing helps identify any potential problems with your backup power system before a real emergency occurs.
• Familiarizes You with the Equipment: Testing allows you to become familiar with the operation of your UPS, power station, and generator, so you can use them confidently and efficiently during an outage.
• Provides Peace of Mind: Knowing that your backup power system is functioning correctly provides peace of mind, reducing anxiety during stressful situations.

By implementing this comprehensive power plan, conducting regular testing, and consulting with your LVAD team, you can feel confident and enjoy peace of mind, knowing you’re prepared for any power outage.

Conclusion

A well-defined power plan, incorporating the tiered backup system described in this guide, is essential for anyone relying on a HeartMate 3 LVAD. This plan has provided a framework for managing power during both daily use and emergencies, emphasizing redundancy, adaptability, and ease of use. By understanding the capabilities and limitations of each backup power solution – UPS, portable power station, and generator – you can create a robust and reliable system tailored to your individual needs and circumstances.

Key Takeaways:

• Tiered Approach: The tiered backup system provides multiple layers of protection, allowing you to respond effectively to outages of varying durations.
• UPS for Short Outages: A UPS with LiFePO4 batteries and pure sine wave output (e.g., GoldenMate 800W) provides seamless power during short outages.
• Portable Power Stations for Extended Outages: Portable power stations, such as the Jackery Explorer 700 Plus or 300 Plus, offer a practical solution for extended outages, primarily for recharging HeartMate 3 batteries. The Jackery Explorer 100 Plus is a great option for travel or as a temporary pure sine wave power source.
• Generators for Prolonged Outages: Generators provide a long-term power solution for disaster scenarios. Inverter generators (e.g., Honda EU2200i) are recommended.
• High-Capacity Power Stations: Models like the Jackery Explorer 2000 Plus offer a viable alternative to generators in many situations.
• Importance of Testing: Regularly testing your entire backup power system is crucial.

Remember:

• Adapt this plan to your individual needs and circumstances.
• Consult with your LVAD team about any questions or concerns.
• Thoroughly test all components of your backup power system.

Have questions about creating an emergency power plan for your HeartMate 3? Contact me for answers.