Best Home Battery for a House With Solar and a Heat Pump

Pairing a heat pump with solar means the house draws power in winter, when panels make the least. A battery bridges that gap. This guide covers five batteries for three kinds of buyers: the renter or small-home owner who wants a plug-in backup, the homeowner who needs the panels and the heat pump to run through an outage, and the off-grid builder who wants a rack-mounted bank. The overview below sorts the picks by capacity and use, and each review ends with the trade-off to weigh first.

Overview of the Picks

Product	Key Spec	Best Use	Price Tier
Jackery HomePower 3000 + 2x200W Panels	3072Wh, 3600W AC	Portable whole-room backup	Mid
Jackery HomePower 3600 Plus + Extra Battery	7168Wh, expandable to 21kWh	Growing homes	Upper mid
GROWATT HELIOS 3600 Combo	7200Wh, expandable to 36kWh	Whole-home backup	Upper mid
ECO-WORTHY Powermega 48V 314Ah (2 pack)	48V LiFePO4, 200A BMS	Off-grid battery bank	Premium
2400W Portable Power Station	2150Wh, 10ms UPS	Budget essentials	Budget

1. Jackery HomePower 3000 and 2x200W Solar Panels

Capacity: 3072Wh
AC Output: 3600W, 7200W surge
Battery Type: LFP
Included Solar: 2x200W panels

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The HomePower 3000 is the entry point to whole-room backup, and the LFP chemistry makes it a long-lived one. The 3600W continuous output with a 7200W surge can carry a heat pump’s startup draw, and the two included 200W panels let the unit recharge from the sun without a separate solar purchase. It is heavy and wheeled rather than carried, so it lives where it is placed.

This pick suits a household that wants one circuit or one room protected — the furnace blower, the fridge, a few lights — rather than the whole panel. It also works for a small home where a heat pump is the only large load. The trade-off is capacity: 3072Wh runs a heat pump for hours, not days, so a long cold outage needs the next pick up.

2. Jackery HomePower 3600 Plus and Extra Battery

Capacity: 7168Wh, expandable to 21kWh
AC Output: 3600W
Battery Type: LFP
Expansion: Extra battery included

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The 3600 Plus doubles the base capacity of the 3000 and ships with an extra battery already attached. The expansion path to 21kWh matters for a heat pump house: it lets the owner add capacity as the load grows instead of replacing the unit. The 3600W output covers the same appliance class as the smaller Jackery, and the LFP cells handle daily cycling well.

This is the pick for a homeowner who expects the battery to carry the heat pump and the fridge through a multi-day outage and wants room to grow. It is also the better fit for a house that plans to add panels later. The trade-off is that expansion batteries are a separate cost each time, so the true price of 21kWh sits well above the entry price.

3. GROWATT HELIOS 3600 Home Battery Backup Combo

Capacity: 7200Wh, expandable to 36kWh
AC Output: 7200W
Voltage: 120V/240V
Battery Type: LFP
Included Hub: Double Voltage Hub

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The HELIOS 3600 is the only pick here with 240V output, and that changes what it can run. A 240V heat pump, a well pump, or a dryer can connect directly instead of through a workaround. The 7200W output and the included Double Voltage Hub make it a genuine whole-home candidate, and the 36kWh expansion ceiling is the highest in this group.

This pick suits a house with a 240V heat pump and a panel that can be wired for backup. It is also the strongest match for a buyer who wants one system to cover both the heat pump and the larger household loads. The trade-off is installation: a 240V transfer setup is not a plug-in job, and the unit’s size means it needs a dedicated spot.

4. ECO-WORTHY Powermega 48V 314Ah (2 pack)

Voltage: 48V
Cell Capacity: 314Ah per battery, 2 pack
BMS: Active balancing, 200A
Communications: RS485/CAN/RS232, Bluetooth, WiFi
Safety: Aerosol fire protection, UL1973 LiFePO4

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This is not a plug-in generator; it is a rack battery for a 48V off-grid or hybrid system. The 200A active-balancing BMS, the aerosol fire protection, and the RS485/CAN/RS232 ports are the features that matter to an installer building a bank. The LCD with Bluetooth and WiFi lets the owner read state of charge without a laptop.

This pick suits the off-grid builder or the homeowner with an existing 48V inverter who wants to add storage in bulk. It is the wrong choice for anyone who wants to plug a battery into a wall and walk away. The trade-off is that it needs an inverter, a transfer switch, and wiring to be useful — the battery alone does not power a house.

5. 2400W Portable Power Station, 2150Wh

Capacity: 2150Wh
AC Output: 2400W
Battery Type: LiFePO4, 3500+ cycles
Recharge: AC in 1.5H
UPS: 10ms switchover

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The budget pick is a portable station with a UPS mode, which is the feature that earns it a place here. The 10ms switchover keeps a circuit live when the grid drops, and the 2400W output runs a fridge, lights, and a modem. The LiFePO4 cells and the 1.5-hour AC recharge make it practical for daily use, not just emergencies.

This pick suits a renter, a small apartment, or a homeowner who wants a first battery to protect essentials while saving for a larger system. It is also the right choice for a house where the heat pump stays on the grid and the battery covers everything else. The trade-off is capacity: 2150Wh will not carry a heat pump, so it protects the essentials and nothing more.

Before You Buy

• Capacity: Match watt-hours to the heat pump’s daily draw plus essentials; a heat pump can use more in a day than a small station holds.
• Output and voltage: Check whether the heat pump is 120V or 240V; only a 240V-capable unit runs it directly.
• Expansion: A unit that expands to a higher capacity protects the purchase as the household grows.
• Installation: Plug-in stations need no wiring; 48V rack batteries and 240V combos need an inverter and a transfer switch.
• Solar compatibility: Confirm the panel voltage and connector match the battery’s input before buying panels separately.
• Cycle life and chemistry: LFP cells last longer than older chemistries and suit daily cycling.
• Placement: These units are heavy; plan a spot with ventilation and room to move them.

Frequently Asked Questions

1. Can a home battery run a heat pump during an outage?
   Yes, if the battery’s output and voltage match the heat pump. A 240V heat pump needs a 240V-capable unit like the GROWATT combo; a 120V unit needs a matching station.

2. How much battery capacity does a heat pump need?
   It depends on the heat pump’s draw and the outage length. A 7kWh unit covers hours of runtime; a multi-day outage needs 20kWh or more, which is why expansion matters.

3. Do these batteries work with existing solar panels?
   The portable stations accept solar input directly. The 48V rack battery needs a charge controller and inverter, so it pairs with a full off-grid system rather than a plug-in array.

4. Is a portable station enough for a whole house?
   No. A portable station protects a circuit or a room. Whole-home backup needs a 240V combo or a rack bank sized to the panel.

5. What is the difference between a UPS station and a home battery?
   A UPS station switches over in milliseconds to keep electronics running. A home battery is sized to carry larger loads for longer, often with expansion and 240V output.

6. How long do these batteries last?
   LFP cells are rated for thousands of cycles, so a daily-cycled unit should last many years. The exact figure depends on depth of discharge and temperature.

Bottom Line

For most houses with solar and a heat pump, the Jackery HomePower 3600 Plus is the pick: 7168Wh out of the box, expansion to 21kWh, and enough output to carry the heat pump and the fridge through a long outage. A 240V heat pump tips the choice to the GROWATT HELIOS 3600, and a tight budget points to the 2400W portable station for essentials. Check the current price on the Jackery HomePower 3600 Plus before deciding.