How Long Will the Anker SOLIX C300 Run an Aquarium Heater (100W)?
Updated 2026-10-17 · Yes
The numbers
| Battery capacity | 288Wh (LFP) |
|---|---|
| Usable energy | 245Wh (85% via AC outlets) |
| Continuous AC output | 300W |
| Surge rating | 600W |
| Aquarium heater (100W) running watts | 100W |
| Startup watts | 100W |
| Average draw | 40W |
| Estimated runtime | 6.1 hours |
| Energy per day of typical use | 960Wh |
288Wh × 0.85 = 245Wh usable ÷ 40W average = 6.1 hours
Station specs: source, checked 2026-10-17. See how we calculate runtime.
Adjust the numbers
Check the label on your aquarium heater (100W) and enter its real wattage.
Recharging with solar
The Anker SOLIX C300 accepts up to 100W of solar input. In real conditions that harvests about 375Wh on a sunny day (5 peak-sun hours).
Solar can’t fully keep up. An aquarium heater (100W) uses about 960Wh a day at 24 hours of use, more than the Anker SOLIX C300’s best-case solar harvest. Solar will stretch the runtime but not sustain it.
Tips
- Aquarium heaters cycle with their thermostat. Add an air pump (5–10W) to keep fish oxygenated during an outage.
- You’ll still have about 200W of AC capacity left for other devices at the same time, though they’ll share the same battery.
- The Anker SOLIX C300 uses LiFePO4 (LFP) cells, rated for thousands of cycles, so running it down daily won’t wear it out quickly.
Other power stations running an aquarium heater (100W)
| Power station | Capacity | Output | Runtime | Verdict |
|---|---|---|---|---|
| EcoFlow River 3 | 245Wh | 300W | 5.2 hours | Yes |
| EcoFlow River 2 | 256Wh | 300W | 5.4 hours | Yes |
| Jackery Explorer 240 v2 | 256Wh | 300W | 5.4 hours | Yes |
| Bluetti EB3A | 268Wh | 600W | 5.7 hours | Yes |
| Jackery Explorer 300 Plus | 288Wh | 300W | 6.1 hours | Yes |
| Goal Zero Yeti 500X | 505Wh | 300W | 11 hours | Yes |
| EcoFlow River 2 Max | 512Wh | 500W | 11 hours | Yes |
| Anker 535 PowerHouse | 512Wh | 500W | 11 hours | Yes |
FAQ
Will the Anker SOLIX C300 run an aquarium heater (100W) overnight?
No. At about 40W average it runs out after 6.1 hours. For a full night you need at least 400Wh of capacity.
How long does the Anker SOLIX C300 take to recharge with solar?
With its maximum 100W of solar input it refills in about 3.8 hours of strong sun. A single 200W panel is enough to max out its solar input.