What are the basic requirements for chargers for lithium batteries?

What are the requirements for chargers for lithium batteries? In order to prevent overcharging of the lithium battery, the lithium battery must be designed with a protection circuit. The lithium battery charger JC is suitable for single-cell and 2~4 battery packs. The basic requirements for lithium battery chargers are as follows: ①It must be fully charged when charging, and the accuracy of the termination charge voltage is required to be about ±1%; ②There is no current during the charging and discharging process, and short-circuit protection needs to be designed; ③The termination discharge voltage must be prohibited Continue discharging, and the accuracy of the termination discharge voltage is controlled at about ±3%; ④Precharge the deeply discharged battery (not lower than the termination discharge voltage) with a small current before charging; ⑤To ensure the stable and reliable operation of the battery, prevent transient voltage For changing interference, a delay circuit for overcharge, overdischarge, and overcurrent protection should be designed inside to prevent transient interference from causing instability; ⑥self-consumption saving (the charger should be energized during charging and discharging) status). The power consumption of a single-cell battery charger is generally less than 10uA, and a multi-cell battery pack is generally about 20uA; when the discharge is terminated, it is in the off state, and generally consumes less than 2uA; ⑦The lithium battery charger has a simple circuit and few peripheral components. , Occupies a small space, generally can be made in batteries or battery packs; ⑧The price of lithium battery chargers is low. ⑨The factors that affect the safe and effective charging of lithium batteries are voltage, current and temperature. Therefore, these three factors should be taken care of and controlled in the charger design. 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 post: Which specific functions and uses of the lithium battery protection board?