Anker SOLIX F2600 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
Anker SOLIX F2600 costs $800 less. Whether that gap is worth closing depends on what you need to run.
- Allpowers R4000 holds 35% more energy (3456Wh vs 2560Wh), so it runs the same load proportionally longer.
- Allpowers R4000 has 3200W more surge headroom (6000W vs 2800W) — that decides whether a fridge, pump or AC compressor will actually start.
- Anker SOLIX F2600 is 44.3 lb lighter (61.7 lb vs 106 lb).
- Anker SOLIX F2600 is rated for 4,000 cycles vs 3,500 — meaningful if you cycle it daily.
An odd spec sheet: 2560Wh of capacity but only 2800W surge — the lowest surge-to-capacity ratio here. Capacity without starting power.
Best for: Long-duration backup of steady loads (lights, electronics, CPAP) rather than motor-driven appliances.
Where it falls short:
- 2800W surge is barely above its 2400W continuous — it will struggle with pumps
- 61.7 lb
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 F2600 | Allpowers R4000 |
|---|---|---|
| Price | $1499 | $2299 |
| Capacity | 2560 Wh | 3456 Wh |
| Continuous output | 2400 W | 4000 W |
| Surge output | 2800 W | 6000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 4,000 | 3,500 |
| Weight (lighter wins) | 61.7 lb | 106 lb |
| Max solar | 1000 W | 2000 W |
| Recharge time (faster wins) | 1h 30m | 1h 30m |
Runtime head-to-head
| Appliance | Anker SOLIX F2600 | Allpowers R4000 |
|---|---|---|
| Refrigerator | 36.3 hrs | 49.0 hrs |
| Mini fridge | 69.1 hrs | 93.3 hrs |
| Chest freezer | 27.2 hrs | 36.7 hrs |
| CPAP machine | 54.4 hrs | 73.4 hrs |
| Sump pump | ❌ | 3.7 hrs |