Bluetti AC70 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
Bluetti AC70 costs $1800 less. Whether that gap is worth closing depends on what you need to run.
- Allpowers R4000 holds 350% more energy (3456Wh vs 768Wh), so it runs the same load proportionally longer.
- Allpowers R4000 has 4000W more surge headroom (6000W vs 2000W) — that decides whether a fridge, pump or AC compressor will actually start.
- Bluetti AC70 is 84.0 lb lighter (22 lb vs 106 lb).
- Allpowers R4000 is rated for 3,500 cycles vs 3,000 — meaningful if you cycle it daily.
Bluetti AC70
768Wh with 1000W output at $499 — it does what the EcoFlow River 2 Pro does, with more output and more weight.
Best for: Campers who need to run a small fridge, not just charge devices.
Where it falls short:
- 22 lb — 5 lb heavier than the River 2 Pro
- Not expandable
Allpowers R4000
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 | Bluetti AC70 | Allpowers R4000 |
|---|---|---|
| Price | $499 | $2299 |
| Capacity | 768 Wh | 3456 Wh |
| Continuous output | 1000 W | 4000 W |
| Surge output | 2000 W | 6000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,500 |
| Weight (lighter wins) | 22 lb | 106 lb |
| Max solar | 500 W | 2000 W |
| Recharge time (faster wins) | 1h 15m | 1h 30m |
Runtime head-to-head
| Appliance | Bluetti AC70 | Allpowers R4000 |
|---|---|---|
| Refrigerator | 10.9 hrs | 49.0 hrs |
| Mini fridge | 20.7 hrs | 93.3 hrs |
| Chest freezer | 8.2 hrs | 36.7 hrs |
| CPAP machine | 16.3 hrs | 73.4 hrs |
| Sump pump | ❌ | 3.7 hrs |