How long will the Anker SOLIX F3800 run a 12v cooler / fridge?

Q: How long will the Anker SOLIX F3800 run a 12v cooler / fridge?

The Anker SOLIX F3800 has 3840 Wh (about 2938 Wh usable at the outlet, estimated). Running a 12v cooler / fridge that draws 45W, it lasts about 2.7 days (~65 hours) on a single full charge.

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Will the Anker SOLIX F3800 run a 12v cooler / fridge?

Yes — the SOLIX F3800 runs a 12v cooler / fridge comfortably

Its 6000W continuous output easily covers the 45W draw, with 9000W of surge on tap for startup.

Estimated runtime

about 2.7 days (~65 hours)

on a single full charge

Est. usable (AC): 2,938 Wh

Appliance draw: 45 W

Continuous output: 6000 W

How we calculated this

We start from the Anker SOLIX F3800's 2,938 Wh of estimated usable energy at the outlet — its 3,840 Wh rating, derated for a safe depth of discharge and ~15% inverter loss — then divide by the 12v cooler / fridge's 45W draw:

2,938 Wh ÷ 45 W ≈ 65.3 hours

Heads up: a 12v cooler / fridge is a motor/compressor load that spikes 2–3× on startup. The Anker SOLIX F3800's 6000W continuous / 9000W surge output has plenty of headroom for that spike.

Real-world runtime varies with temperature, cable losses, and how hard the appliance actually cycles. Treat this as a solid estimate, not a guarantee.

Check SOLIX F3800 price → Full SOLIX F3800 specs →