How long will your battery bank actually last?

A 100 Ah battery is not 100 hours of anything. Enter the bank voltage, capacity, depth of discharge and the load, and this page returns the runtime in hours and minutes, the usable watt-hours, the discharge current and the capacity you need for a target runtime.

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Battery Backup Runtime CalculatorWork out how long a 12, 24 or 48 V battery bank will run a load, and how much capacity you need to hit a target runtime. Includes discharge depth, inverter losses and a C-rate check.