milliampere hour

milliampere hour

Unit whose name includes an SI unit and a non-SI unit accepted for use with SI
Name Symbol Quantity Value in SI units
milliampere hour
milliamp hour
mA h electric charge 3.6 C


The milliampere hour, or milliamp hour, symbol mA h, is a non-SI unit of electic charge, accepted for use with the SI.
One milliampere hour is equal to 3.6 coulombs.

The milliampere hour is derived from the ampere (an SI coherent derived unit) and the hour (a non-SI unit accepted for use with SI).

current × time = charge expressed in SI units
0.001 A × 3600 s = 3.6 A s 3.6 C

The milliampere hour, m Ah, is a non-SI unit commonly used to quantify the charge stored in an electric battery.