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Battery Runtime Estimator

Usable Wh with chemistry preset, runtime at load, inverter loss and days-of-autonomy sizing. 6 inputs, 3 outputs with grouped results.

Inputs

Bank

At stated volts.

Bank voltage.

Chemistry

Sets usable fraction.

Used only with Custom.

Load

Backed load.

Via inverter?

Inverter loss.

Result

Runtime in days
0.38 d
Runtime
9.00 h
Usable energy
1,080 Wh
Screening calculation only. Verify against NEC articles cited on the page and the equipment nameplate; the authority having jurisdiction governs.

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