Allpowers R4000 vs EcoFlow DELTA mini
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
EcoFlow DELTA mini costs $1700 less. Whether that gap is worth closing depends on what you need to run.
- Allpowers R4000 holds 292% more energy (3456Wh vs 882Wh), so it runs the same load proportionally longer.
- Allpowers R4000 has 3900W more surge headroom (6000W vs 2100W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA mini is 82.4 lb lighter (23.6 lb vs 106 lb).
- Allpowers R4000 uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- Allpowers R4000 is rated for 3,500 cycles vs 800 — meaningful if you cycle it daily.
If you plan to cycle the battery daily, think twice about the EcoFlow DELTA mini. Its NMC cells are rated for 800 cycles against the LiFePO4 rival's longer life — over years of regular use that's the more expensive unit, whatever the sticker says.
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
A compact NMC unit with a surprisingly strong 1,400W output for its size — but the 800-cycle battery means it won't age like the LiFePO4 field.
Best for: Buyers who want strong output in a light unit and won’t cycle it daily.
Where it falls short:
- NMC — ~800 cycles
- 2-year warranty, 300W solar input
| Spec | Allpowers R4000 | EcoFlow DELTA mini |
|---|---|---|
| Price | $2299 | $599 |
| Capacity | 3456 Wh | 882 Wh |
| Continuous output | 4000 W | 1400 W |
| Surge output | 6000 W | 2100 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 3,500 | 800 |
| Weight (lighter wins) | 106 lb | 23.6 lb |
| Max solar | 2000 W | 300 W |
| Recharge time (faster wins) | 1h 30m | 1h 36m |
Runtime head-to-head
| Appliance | Allpowers R4000 | EcoFlow DELTA mini |
|---|---|---|
| Refrigerator | 49.0 hrs | 12.5 hrs |
| Mini fridge | 93.3 hrs | 23.8 hrs |
| Chest freezer | 36.7 hrs | 9.4 hrs |
| CPAP machine | 73.4 hrs | 18.7 hrs |
| Sump pump | 3.7 hrs | ❌ |