Device tool

Battery Runtime Estimator

Estimate device runtime from battery watt-hours or voltage and amp-hours, average load, efficiency, and usable-capacity limits.

Estimate runtime

Wh or Ah
V
W
%
%

Ready when you areEnter known values and review the assumptions shown with the result.

This tool runs locally in your browser. Device access is requested only when needed and can be revoked through browser controls.