milliampere hour

Unit whose name includes an SI unit and a non-SI unit accepted for use with SI

Name	Symbol	Quantity	SI units
milliampere 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.
Definition			e

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

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

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