Excuse me: What does the ampere-hour of the battery mean?

Simply put, the ampere hours of a battery represent the capacity of the battery. The greater the ampere hours, the greater the battery capacity, the more energy that can be stored and the longer the battery life. Generally speaking, if funds and space permit, the battery with long battery life is preferred.

In addition, ampere-hours also represent discharge capacity. A battery with a large ampere-hour number can provide a large safe discharge current, which can be used for high-power equipment, otherwise it will be small.

Extended data:

Usually, the capacity of power supply equipment is expressed in kilovolt ampere or kilowatt. However, it is more accurate to choose ampere hour (A h) to represent the capacity of VRLA battery as power supply.

The capacity of the battery is defined as ∫t0tdt, which can approach infinity in theory, but in practice, when the battery is discharged below the termination voltage, it will continue to discharge, which may damage the battery, so the value of t is limited. In the battery industry, hours (h) are used to represent the sustainable discharge time of batteries, including C24, C20, C 10, C8, C3 and C65438+.

The nominal capacity of small batteries is in milliampere hours (mA h), and the nominal capacity of large batteries is in ampere hours (A h) and kiloampere hours (kA h). The telecommunications industry usually adopts nominal capacity values, such as C 10 and C8.

For example, the common decca battery 12AVR 100SH is 12V monomer, the capacity of 100 A h can be continuously discharged 10h, the current is 10A, and the total discharge hours are10.

Reference link: Baidu Encyclopedia-Battery