A dedicated fridge backup battery sounds simple. Capacity, startup power and UPS behaviour all matter before buying.
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Use these cards as a practical starting point after reading a guide or using a calculator. Check capacity, power, features and price before opening the merchant page.
valueJackery
Jackery Explorer 2000 v2
2-5 kWh
- capacity kwh: 2-5 kWh
- inverter power kw: 2.2 kW
- expandable to kwh: 2.042 kWh
Portable 2.042 kWh LFP station with 2.2 kW output and fast charging for backup, travel and detached spaces.
budgetAnker
Anker SOLIX C1000
1-2 kWh
- capacity kwh: 1-2 kWh
- inverter power kw: 1.8 kW
- expandable to kwh: 2.112 kWh
Compact 1.024 kWh LFP backup station with 1.8 kW output, best suited to essential loads, portable use and shorter outages.
valueEcoFlow
EcoFlow DELTA 2 Max
2-5 kWh
- capacity kwh: 2-5 kWh
- inverter power kw: 3.1 kW
- expandable to kwh: 6.144 kWh
2.048 kWh LFP station with up to 3.1 kW output, fast charging and a familiar ecosystem for solar-assisted home backup.
premiumEcoFlow
EcoFlow DELTA Pro 3
4-8 kWh
- capacity kwh: 4-8 kWh
- inverter power kw: 4 kW
- expandable to kwh: 12 kWh
High-output 4.096 kWh LFP power station with 4 kW AC output and expansion up to 12 kWh for serious backup scenarios.
valueZendure
Zendure SolarFlow 2400 AC
2-5 kWh
- capacity kwh: 2-5 kWh
- inverter power kw: 2.4 kW
- expandable to kwh: 17.28 kWh
AC-coupled SolarFlow system with a 2.88 kWh AB3000X battery, 2.4 kW power management and broad expansion potential.
valueMARSTEK
MARSTEK Venus E 3.0
4-8 kWh
- capacity kwh: 4-8 kWh
- inverter power kw: 2.5 kW
- expandable to kwh: 15.36 kWh
AC-coupled 5.12 kWh LFP home battery with 2.5 kW input/output, app control and expansion to 15.36 kWh.
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