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Milliamp Hour (mAh) An Milliamp Hour(mAh) is a unit for measuring electric power over time. mAh is commonly used to describe the total amount of energy a battery can store at one time. It's the easiest way to distinguish the strength or capacity of a battery. The higher the mAh, the longer the battery will last.
Milliampere (mA) A Milliampere, denoted by mAh is a standard unit used to denote the 1000th part of an ampere hour. Ampere hour is the standard unit of electric charge, which is also known as amp hour or ampere hour. The international standard symbol of ampere hour is Ah, A h or AÂ·h. Milliampere hour is also equal to 3.6 coulombs.