Anker SOLIX F3800 vs Allpowers R4000
Side-by-side on the specs that decide it — surge, capacity, runtime and price.
Both models' specs verified against manufacturer listings · Last updated
The short answer
Allpowers R4000 costs $1700 less. Whether that gap is worth closing depends on what you need to run.
- Anker SOLIX F3800 holds 11% more energy (3840Wh vs 3456Wh), so it runs the same load proportionally longer.
- Anker SOLIX F3800 has 3000W more surge headroom (9000W vs 6000W) — that decides whether a fridge, pump or AC compressor will actually start.
- Allpowers R4000 is 26.3 lb lighter (106 lb vs 132.3 lb).
- Anker SOLIX F3800 is rated for 4,000 cycles vs 3,500 — meaningful if you cycle it daily.
This is where portable power stops being portable and starts replacing a standby generator. The 240V split-phase output is the headline feature.
Best for: Whole-home backup where you need 240V loads and can't run a gas generator.
Where it falls short:
- 132 lb — this is a wheeled appliance, not something you carry
- $3,999 puts it against real standby generators
A large expandable unit that undercuts the EcoFlow Delta Pro 3 on price while matching its 4,000W output — the trade is a less established support network.
Best for: Whole-home backup buyers prioritising price per watt over brand.
Where it falls short:
- 106 lb
- Brand support and resale trail the big names
| Spec | Anker SOLIX F3800 | Allpowers R4000 |
|---|---|---|
| Price | $3999 | $2299 |
| Capacity | 3840 Wh | 3456 Wh |
| Continuous output | 6000 W | 4000 W |
| Surge output | 9000 W | 6000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 4,000 | 3,500 |
| Weight (lighter wins) | 132.3 lb | 106 lb |
| Max solar | 2400 W | 2000 W |
| Recharge time (faster wins) | 1h 30m | 1h 30m |
Runtime head-to-head
| Appliance | Anker SOLIX F3800 | Allpowers R4000 |
|---|---|---|
| Refrigerator | 54.4 hrs | 49.0 hrs |
| Mini fridge | 103.6 hrs | 93.3 hrs |
| Chest freezer | 40.8 hrs | 36.7 hrs |
| CPAP machine | 81.6 hrs | 73.4 hrs |
| Sump pump | 4.1 hrs | 3.7 hrs |