EcoFlow Delta Pro 3
The right pick for households wanting whole-home-style backup that can run a full-size refrigerator for days, not hours.
- Amazon price
- $2599.00
- Customer rating
- 4.2 ★ (272 reviews)
Pros
- Massive 4kWh base capacity that's expandable with extra batteries for multi-day fridge runtime
- 4000W AC output handles a refrigerator's startup surge alongside other large appliances simultaneously
- Multiple recharge paths including AC, high-wattage solar, EV stations, and generator input for true emergency flexibility
- Transfer-switch and Smart Home Panel 2 compatible for hardwired backup integration
Cons
- Heavy and bulky enough that "portable" is generous — moving it solo is awkward
- Premium price puts it well above what most users need just to keep a fridge cold