EcoFlow DELTA Pro 3 vs Anker SOLIX F3800: 4kWh Home Backup Compared
Compare capacity, inverter output, solar input, weight and expansion of EcoFlow DELTA Pro 3 and Anker SOLIX F3800.
These are both large LFP systems aimed at home backup, but they emphasize different tradeoffs in output, portability and ecosystem design.
Specification snapshot
| Model | Capacity | AC output | Solar input | Weight |
|---|---|---|---|---|
| EcoFlow DELTA Pro 3 | 4,096 Wh | 4,000 W | 2,600 W | 113.54 lb |
| Anker SOLIX F3800 | 3,840 Wh | 6,000 W | 2,400 W | 132 lb |
Specifications linked to manufacturer sources in our power station database.
What matters
- DELTA Pro 3 lists 4,096Wh capacity and 4,000W continuous AC output.
- Anker SOLIX F3800 lists 3,840Wh capacity and 6,000W AC output.
- EcoFlow lists up to 2,600W solar input; Anker lists up to 2,400W.
- Both are heavy wheeled systems, so home integration and load requirements should drive the decision more than nominal portability.
Choose based on the loads you must start and run, the transfer/home-panel ecosystem you intend to use, and expansion economics. Higher inverter wattage is not automatically better if your critical-load plan does not need it.
Use the numbers before choosing a model
Start with your load list. The battery needs enough watt-hours for the desired runtime and enough continuous/surge watts to operate the appliances at the same time. Then check whether your recharge method can replace the energy you expect to consume.
For outage planning, we recommend keeping reserve capacity instead of designing a system that reaches 0% at the end of the forecasted outage.
Next step
Estimate battery runtime → or build a critical-load energy budget →.