The battery capacity represents how much electricity the battery can hold, and the numbers we see on the outside of the battery generally refer to the battery capacity identification. expressed in unit Ann or MA. It is a compound unit, which is composed of the product of current unit and time unit, which represents the ability of the battery to discharge continuously under constant current. A battery full of electricity can last 10 hours with a 200mA current discharge, multiplying the current to the time we can get this battery capacity is 2000mA.H. If you discharge it with 400mA, the available time is 5 hours
Energy density: unit volume or unit weight included in the power capacity, for the same electricity requirements, energy density of the battery, the volume can be smaller, weight can be lighter.
C Current: The amount of current that fills the battery in an hour, or the battery that will be exhausted. In fact, is the size of the number of time capacity. 1800mA. Capacity of the battery, C current is 1800mA. 2000mA. Capacity of the battery, C current is 2000mA.
Open circuit voltage: Refers to the potential difference between the two poles of the battery.
Memory effect: The new battery, the grain of the electrode material is small, can obtain the maximum electrode surface area. Because of the use of the contents of the battery to produce crystallization, crystal formation, the grain increase, also known as (passivation), reducing the available electrode area, and the growth of the grain will cause a self-discharge increase, so that the battery capacity reduction, performance damage. This is the memory effect. The memory effect occurs because the partial charge and discharge of the battery are not completely caused.