Battery/Appliance Operating Times Calculator
Amp Hour (Ah)
indicates the battery's storage capacity over a 20
hour period.
To determine how many constant Amps
the battery can output for 20 hours, divide the Ah
rating by 20. For example, if you have a 200Ah
battery, it can deliver 10 Amps for 20 hours before
it is fully discharged (200 ÷ 20 = 10).
To estimate how long a battery/appliance combination
will operate together, use this handy calculator.
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