Amp hours is a way to measure the capacity of a battery, meaning how many hours the battery can be discharged at a certain amount of current, for example 10 amp hours can mean 10 hours of continuous discharge at 1 amp or 5 hours at 2 amps, amp hours are often written as Ah, a relationship between current and time:
Ah = I (A) x t (h)
The advantage of using ampere hours is that when we know the amount of current being used in a device we can roughly estimate how long the battery will last and have a clear idea of the capacity and life of the battery.
Ampere-hours are generally used to measure larger capacity batteries, and similarly milliampere-hours (mAh) are used to measure smaller capacity batteries.
1Ah = 1000mAh
Ampere is a physical quantity that expresses the magnitude of the current, a unit that measures the strength of the current, and from a microscopic point of view, it is a measure of the speed of the current flowing through a circuit, calculating the number of electrons that flow through a specific point in one second, and is expressed in terms of I (A).
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