EcoFlow DELTA Pro 3
A rolling home battery: 4 kWh, 4,000 W at 120/240 V, expandable to 48 kWh. It can run a well pump or central AC and replaces a gas generator.
- Continuous AC output
- 4,000W
- AC recharge time
- 50min
- Max solar input
- 2,600W
- Weight
- 113.5lb
We earn a commission when you buy through our Amazon links, at no extra cost to you.
The DELTA Pro 3 is built for whole‑home backup. It stores 4,096 Wh of LiFePO4, delivers 4,000 W continuously with 8,000 W surge, and outputs both 120 V and 240 V, so it can power a well pump, a dryer or central air through a transfer switch. A 30 A RV outlet is built in.
It accepts up to 2,600 W of solar and charges to 80% in about 50 minutes on a 240 V circuit. With extra batteries it scales to 48 kWh, enough to carry a typical home through several days. At 113.5 lb it rolls on large wheels with a telescoping handle, but it is not something you lift into a car alone.
Pros
- 4,000 W at 120 V and 240 V
- Expandable to 48 kWh
- Up to 2,600 W of solar input
- IP65‑rated battery and 10 ms UPS
Cons
- Very heavy at 113.5 lb
- Expensive, especially with extra batteries
- Fastest charging needs a 240 V circuit
Who it’s for
- Homes in hurricane or wildfire zones
- Replacing a gas generator
- Large RVs and off‑grid cabins
Technical specifications
| Capacity | 4,096 Wh |
|---|---|
| Battery chemistry | LiFePO4 |
| Cycle life (to 80%) | 4,000 |
| Continuous AC output | 4,000 W120 V and 240 V |
| Surge power | 8,000 W |
| AC recharge time | 50 min0–80% on a 240 V circuit |
| Max solar input | 2,600 W |
| Weight | 113.5 lb (51.5 kg) |
| Total outputs | 12 |
| UPS switchover | ≤ 10 ms |
| Expandable | Yes, up to 48,000 Wh |
| App control | Wi‑Fi + Bluetooth |
| Noise | — |
| Dimensions | 27.3 × 13.4 × 16.1 in |
Performance profile
Scores are calculated from the published specs on a 0–10 scale, so every model is measured the same way.
How long will it run?
- Wi‑Fi router + modem 20 W174 h+
- CPAP machine 40 W87 h+
- Fridge (average draw) 60 W58 h+
- Laptop 60 W58 h+
- 55" TV 100 W35 h+
- Drip coffee maker 1,000 W3.5 h
- Space heater 1,500 W2.3 h
Estimated with 85% inverter efficiency. Real runtimes vary with temperature and load.
What reviewers and owners say
TechRadar highlighted the huge expandable capacity, the 4,000 W / 8,000 W output, seven charging methods including solar and EV chargers, and fast AC charging. The only drawbacks they noted were the 113.5 lb weight and the price.
Most praised
- 240 V output
- Expandability
- Solar input
Most common complaints
- Weight
- Price
Sources: TechRadar
EcoFlow DELTA Pro 3
A rolling home battery: 4 kWh, 4,000 W at 120/240 V, expandable to 48 kWh. It can run a well pump or central AC and replaces a gas generator.