Introduction to the classification of battery capacity

Classification of battery capacity The battery capacity is divided into actual capacity, theoretical capacity and rated capacity according to different conditions. The minimum capacity provided for discharging at a certain discharge rate at 25°C to the final voltage is the battery capacity specified during design and production, which is called the rated capacity of a certain discharge rate RH. The battery capacity is generally calculated by AH (ampere hour), and the other is calculated by CELL (unit plate) several watts (W). (W/CELL) 1.Ah (ampere hour) calculation, discharge current (constant current) I × discharge time (hour) T. For example, if a 7AH battery has a continuous discharge current of 0.35A, the time can last for 20 hours. 2. The charging time is 15 hours as the standard, and the charging current is 1/10 of the battery capacity. Fast charging will reduce the battery life. Battery capacity refers to the size of the battery's stored power. The unit of battery capacity is mAh, and the Chinese name is milliampere hour (when measuring large-capacity batteries such as accumulators, for convenience, it is generally expressed in Ah, and the Chinese name is Ah, 1Ahu003d1000mAh). If the rated capacity of the battery is 1300mAh, that is, the current of 130mA discharges the battery, then the battery can work continuously for 10 hours (1300mAh/130mAu003d10h); if the discharge current is 1300mA, the power supply time is only about 1 hour (actual working time There are some differences due to individual differences in the actual capacity of the battery). This is an analysis in an ideal state. The current of a digital device in actual work cannot always be constant at a certain value (take a digital camera as an example, the working current will be larger due to the opening or closing of the LCD display, flashlight and other components. Therefore, the battery can only provide an approximate value for the power supply time of a certain device, and this value can only be estimated through relevant experience in actual operation. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What is the use of high-voltage batteries