Energy & Power

Peukert Battery Runtime Estimator

Model how real batteries sag under heavier loads. Enter your pack details and load profile to see how Peukert's law shrinks runtime in non-linear ways.

Rated capacity (Ah) Rating hours (h) Peukert exponent (k)

Higher values exaggerate runtime loss at high currents.

Parallel strings

Current splits across parallels; Peukert applies per string.

Nominal pack voltage (V) Cutoff depth of discharge (%)

Percent of rated capacity you're willing to use.

Load power (W)

DC-DC / inverter efficiency

Current = Power ÷ (Voltage × Efficiency)

Or set a direct DC current –

Override the computed current if you already know it.

Non-linear discharge model Considers parallel string sharing Efficiency + DOD cutoff applied

Estimated runtime

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Peukert penalty

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Runtime vs. ideal linear discharge

Effective capacity at this load

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Per-string stress

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Peukert effect insight will appear here.