How Long Will the Anker SOLIX C300 Run a 12V Car Fridge?
Updated 2026-10-17 · Yes
The numbers
| Battery capacity | 288Wh (LFP) |
|---|---|
| Usable energy | 265Wh (92% via 12V/USB DC output) |
| Continuous AC output | 300W |
| Surge rating | 600W |
| 12V car fridge running watts | 45W |
| Startup watts | 60W |
| Average draw | 18W |
| Estimated runtime | 15 hours |
| Energy per day of typical use | 432Wh |
288Wh × 0.92 = 265Wh usable ÷ 18W average = 14.7 hours
Station specs: source, checked 2026-10-17. See how we calculate runtime.
Adjust the numbers
Check the label on your 12V car fridge 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. A 12V car fridge uses about 432Wh 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
- Compressor coolers like Dometic, ICECO and BougeRV plug into the 12V car port, which skips inverter losses entirely.
- Running it from the Anker SOLIX C300’s DC port instead of the AC outlet avoids inverter losses: about 20Wh more usable energy.
- 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 a 12V car fridge
| Power station | Capacity | Output | Runtime | Verdict |
|---|---|---|---|---|
| EcoFlow River 3 | 245Wh | 300W | 13 hours | Yes |
| EcoFlow River 2 | 256Wh | 300W | 13 hours | Yes |
| Jackery Explorer 240 v2 | 256Wh | 300W | 13 hours | Yes |
| Bluetti EB3A | 268Wh | 600W | 14 hours | Yes |
| Jackery Explorer 300 Plus | 288Wh | 300W | 15 hours | Yes |
| Goal Zero Yeti 500X | 505Wh | 300W | 26 hours | Yes |
| EcoFlow River 2 Max | 512Wh | 500W | 26 hours | Yes |
| Anker 535 PowerHouse | 512Wh | 500W | 26 hours | Yes |
FAQ
Will the Anker SOLIX C300 run a 12V car fridge overnight?
Yes. Eight hours uses about 144Wh, roughly 54% of the Anker SOLIX C300’s usable 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.