Bluetti AC2A 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 AC2A costs $2100 less. Whether that gap is worth closing depends on what you need to run.
- Allpowers R4000 holds 1594% more energy (3456Wh vs 204Wh), so it runs the same load proportionally longer.
- Allpowers R4000 has 5400W more surge headroom (6000W vs 600W) — that decides whether a fridge, pump or AC compressor will actually start.
- Bluetti AC2A is 98.1 lb lighter (7.9 lb vs 106 lb).
- Allpowers R4000 is rated for 3,500 cycles vs 3,000 — meaningful if you cycle it daily.
One of the cheapest LiFePO4 stations on the market. 204Wh is tiny, but a 200W solar input that outpaces the capacity makes it a surprisingly capable little off-grid trickle unit.
Best for: Ultralight campers who recharge from a panel daily.
Where it falls short:
- 204Wh is genuinely small
- 300W output is device-only
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 AC2A | Allpowers R4000 |
|---|---|---|
| Price | $199 | $2299 |
| Capacity | 204 Wh | 3456 Wh |
| Continuous output | 300 W | 4000 W |
| Surge output | 600 W | 6000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,500 |
| Weight (lighter wins) | 7.9 lb | 106 lb |
| Max solar | 200 W | 2000 W |
| Recharge time (faster wins) | 1h 30m | 1h 30m |
Runtime head-to-head
| Appliance | Bluetti AC2A | Allpowers R4000 |
|---|---|---|
| Refrigerator | ❌ | 49.0 hrs |
| Mini fridge | 5.5 hrs | 93.3 hrs |
| Chest freezer | ❌ | 36.7 hrs |
| CPAP machine | 4.3 hrs | 73.4 hrs |
| Sump pump | ❌ | 3.7 hrs |