milliampeeritunteina

Milliampeeritunteina, often abbreviated as mAh, is a unit of electric charge. It represents the quantity of electric charge that flows through a circuit. Specifically, it is a measure of a battery's capacity, indicating how much current a battery can deliver over a certain period. One milliamperehour is equivalent to a current of one milliampere flowing for one hour. Therefore, a battery with a capacity of 2000 mAh can theoretically deliver 2000 milliamperes for one hour, or 1000 milliamperes for two hours, and so on, until its charge is depleted.

The unit is derived from the ampere-hour (Ah), which is a larger unit of charge. Since many electronic devices and batteries have capacities measured in the thousands of milliamperehours, the milliamperehour unit is more convenient for everyday use. For example, a typical smartphone battery might have a capacity of around 3000 mAh to 5000 mAh. A higher mAh rating generally indicates a longer operating time for a device before it needs to be recharged, assuming other factors like power consumption remain constant. It is important to note that mAh is a measure of capacity, not power. Power is the rate at which energy is transferred, typically measured in watts (W).