Anker 555 PowerHouse vs Oukitel P2001
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 555 PowerHouse costs $200 less. Whether that gap is worth closing depends on what you need to run.
- Oukitel P2001 holds 95% more energy (2000Wh vs 1024Wh), so it runs the same load proportionally longer.
- Oukitel P2001 has 2500W more surge headroom (4000W vs 1500W) — that decides whether a fridge, pump or AC compressor will actually start.
- Anker 555 PowerHouse is 19.1 lb lighter (29.9 lb vs 49 lb).
- Oukitel P2001 is rated for 3,500 cycles vs 3,000 — meaningful if you cycle it daily.
Anker 555 PowerHouse
A 1kWh unit whose 1,000W output and slow charging show its age — the newer, cheaper Anker C1000 beats it on nearly every axis.
Best for: Only worth it steeply discounted against the C1000.
Where it falls short:
- 1,500W surge is low
- 200W solar input and a slow 138-minute recharge
Oukitel P2001
An older Oukitel 2kWh, still sold cheap. Solid on paper with 2,000W and expandability, but the 500W solar input is a real limit off-grid.
Best for: Budget buyers who recharge mainly from the wall, not panels.
Where it falls short:
- 500W solar input is low for 2kWh
- Smaller support network
| Spec | Anker 555 PowerHouse | Oukitel P2001 |
|---|---|---|
| Price | $699 | $899 |
| Capacity | 1024 Wh | 2000 Wh |
| Continuous output | 1000 W | 2000 W |
| Surge output | 1500 W | 4000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,500 |
| Weight (lighter wins) | 29.9 lb | 49 lb |
| Max solar | 200 W | 500 W |
| Recharge time (faster wins) | 2h 18m | 1h 30m |
Runtime head-to-head
| Appliance | Anker 555 PowerHouse | Oukitel P2001 |
|---|---|---|
| Refrigerator | 14.5 hrs | 28.3 hrs |
| Mini fridge | 27.6 hrs | 54.0 hrs |
| Chest freezer | 10.9 hrs | 21.3 hrs |
| CPAP machine | 21.8 hrs | 42.5 hrs |
| Sump pump | ❌ | 2.1 hrs |