Portable Battery Power Calculator
How many hours per day will my battery be able to run for until it needs to be recharged?
Before using this calculator, you'll need to work out and have handy the total number of watts needed to power your devices, how many hours you plan to run them for each day, the battery voltage of your devices, plus the battery power of your battery.
(e.g. 180 watts)
(e.g. 2.5 hours)
(e.g. 12V)
You can find this in your battery's user manual.
Most batteries cannot be run down to 0. We recommend running an AGM battery down to 50% and a lithium battery down to 20%.
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