Best for backup
2048Wh
USABLE CAPACITY
SunVault
SunVault Max 2000
4.8 · 970 reviews
A 2kWh powerhouse that can carry essential circuits through a power cut and expand with extra battery packs when you outgrow it.
£1,499
typical online price
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The specs that matter
Capacity
2048 Wh
Output
2400 W
Surge peak
4800 W
Weight
43 lb
Solar recharge
2.2 h
Cycle life
4,000
Chemistry
LiFePO4
Rating
4.8 / 5
What’s great
- Runs the fridge + essentials for a full day
- Expandable with bolt-on battery packs
- Fastest recharge in its class
Worth knowing
- Heavy — this one mostly stays put
- Premium price
Sunny’s verdict
When the goal is keeping the house alive through power cuts without a wired-in system, the SunVault is the sweet spot.