Milliamp Hours

Milliamp hours (mAh) are a unit of measurement for electric charge capacity, representing how much current a battery can deliver over time. One milliamp hour equals the amount of charge transferred by a steady current of one milliampere flowing for one hour. This measurement is commonly used to specify the energy storage capacity of small batteries in portable devices like smartphones, tablets, and IoT devices, where a higher mAh rating typically indicates longer battery life under similar usage conditions.