power

Converts battery capacity from milliamp-hours (mAh) to watt-hours (Wh), kilowatt-hours (kWh), and joules (J) given the nominal cell voltage. This is the most common battery unit conversion needed when comparing cells rated in mAh (e.g. 18650, AA) against energy budgets specified in Wh. Essential for airline lithium battery compliance (100 Wh limit for carry-on), solar battery bank sizing, and UPS capacity planning. Echoes back input values for easy chaining into battery_life, solar_sizing, and ups_runtime tools.

post/api/mah_to_wh

Request

  • Base URL: https://calc.engineer
  • URL: https://calc.engineer/api/mah_to_wh
  • Auth: none declared

Request body

capacity_mahnumber required

Battery capacity in milliamp-hours (mAh)

voltage_vnumber required

Nominal battery voltage (V)

Response

Computed result for mah_to_wh

toolstring required
versionstring required
computed_atstring date-time required

Changes

No recorded changes to this operation across all 1 revision of this API.