Cooler runtime

Estimate mini fridge or 12V cooler runtime.

Enter running watts, cycling behavior, battery size, and target hours to see whether a small fridge or cooler fits your power station.

Quick result Run estimate

Duty cycle decides whether a cooler is a small load or a battery drain.

Inputs

Planning assumptions

Use this as a planning estimate

Small solar and backup-power estimates depend on real device draw, temperature, battery age, sun, shade, and product limits. Use the result to narrow a shopping range, then verify exact specs before buying.

Planning notes

What this calculator is checking

Cycling

Coolers do not draw full watts all day

The duty cycle estimate is what turns running watts into average watts.

Temperature

Heat changes the result

A cooler in a hot car or campsite can cycle more often than one indoors.

Related

Solar recharge time calculator

Check whether a panel can refill the battery within your usable sun window.

Open calculator