Anker SOLIX C1000 vs Anker SOLIX C300
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 SOLIX C300 costs $820 less. Whether that gap is worth closing depends on what you need to run.
- Anker SOLIX C1000 holds 267% more energy (1056Wh vs 288Wh), so it runs the same load proportionally longer.
- Anker SOLIX C1000 has 1800W more surge headroom (2400W vs 600W) — that decides whether a fridge, pump or AC compressor will actually start.
- Anker SOLIX C300 is 19.8 lb lighter (8.6 lb vs 28.44 lb).
Neither of these will start a sump pump or well pump — both surge below the ~3,400W those motors need. If home backup with pumps is your use case, look at higher-surge models instead of either of these.
The default recommendation for most people. It clears the 1kWh bar, recharges in under an hour, and undercuts almost everything with comparable specs.
Best for: First-time buyers who want one unit for camping and short outages without overpaying.
Where it falls short:
- 2400W surge won't start a sump pump or well pump
- Only 1056Wh — a fridge-plus-devices outage tops out around a day
Anker's smallest. 288Wh at $179 with three USB-C ports — aimed squarely at people charging modern devices, not running appliances.
Best for: Content creators and travelers with a bag full of USB-C gear.
Where it falls short:
- 300W output is device-only territory
- 100W solar input
| Spec | Anker SOLIX C1000 | Anker SOLIX C300 |
|---|---|---|
| Price | $999 | $179 |
| Capacity | 1056 Wh | 288 Wh |
| Continuous output | 1800 W | 300 W |
| Surge output | 2400 W | 600 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,000 |
| Weight (lighter wins) | 28.44 lb | 8.6 lb |
| Max solar | 600 W | 100 W |
| Recharge time (faster wins) | 58 min | 1h |
Runtime head-to-head
| Appliance | Anker SOLIX C1000 | Anker SOLIX C300 |
|---|---|---|
| Refrigerator | 15.0 hrs | ❌ |
| Mini fridge | 28.5 hrs | 7.8 hrs |
| Chest freezer | 11.2 hrs | ❌ |
| CPAP machine | 22.4 hrs | 6.1 hrs |
| Sump pump | ❌ | ❌ |