Anker 521 PowerHouse vs Segway Cube 1000
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 521 PowerHouse costs $550 less. Whether that gap is worth closing depends on what you need to run.
- Segway Cube 1000 holds 300% more energy (1024Wh vs 256Wh), so it runs the same load proportionally longer.
- Segway Cube 1000 has 4100W more surge headroom (4400W vs 300W) — that decides whether a fridge, pump or AC compressor will actually start.
- Anker 521 PowerHouse is 20.2 lb lighter (8.2 lb vs 28.4 lb).
Anker 521 PowerHouse
A pocket-scale LiFePO4 unit for keeping devices alive. 200W of output means it's a charger, not an appliance station.
Best for: Travelers and campers topping up phones, cameras and a laptop.
Where it falls short:
- 200W output runs devices only
- 256Wh is small
Segway Cube 1000
Segway's stackable home unit brings a strong 2,200W output at 1kWh and a modular design, though the cube form factor is bulkier than flat rivals.
Best for: Buyers who want a stackable, expandable home system starting at 1kWh.
Where it falls short:
- Bulky cube shape
- 3-year warranty
| Spec | Anker 521 PowerHouse | Segway Cube 1000 |
|---|---|---|
| Price | $249 | $799 |
| Capacity | 256 Wh | 1024 Wh |
| Continuous output | 200 W | 2200 W |
| Surge output | 300 W | 4400 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,000 |
| Weight (lighter wins) | 8.2 lb | 28.4 lb |
| Max solar | 100 W | 700 W |
| Recharge time (faster wins) | 2h 30m | 1h 20m |
Runtime head-to-head
| Appliance | Anker 521 PowerHouse | Segway Cube 1000 |
|---|---|---|
| Refrigerator | ❌ | 14.5 hrs |
| Mini fridge | ❌ | 27.6 hrs |
| Chest freezer | ❌ | 10.9 hrs |
| CPAP machine | 5.4 hrs | 21.8 hrs |
| Sump pump | ❌ | 1.1 hrs |