What are the charging methods for car lithium batteries?

Car lithium battery charging method The charging process of lithium battery can usually be divided into pre-charging, fast charging, top-up charging, and trickle charging. 1. Pre-charging When charging a long-term unused or new lithium battery, fast charging is used at the beginning, which will affect the life of the battery. Therefore, this kind of battery should be charged with a small current first to make it meet certain charging conditions. This stage is called pre-charging. 2. Fast charging Fast charging is to charge with high current to quickly restore battery power. The fast charging rate is generally above 1C, and the fast charging time is determined by the battery capacity and charging rate. Fast charging is divided into two types: constant current charging and pulse charging. Constant current charging is to charge current with a constant current. Pulse charging is to first charge the battery with pulse current, and then discharge the lithium battery, and so on. 3. Complementary charging When some fast charging stop methods are used, after the fast charging is terminated, the lithium battery is not fully charged. In order to ensure that 100% of the power is charged, a supplementary charging process should also be added. The supplementary charging rate generally does not exceed 0.3C. 4. Trickle charging. In the process of complementary charging, the temperature will continue to rise. When the temperature exceeds the specified limit, the charger will enter the trickle charging state. In order to ensure that the lithium battery is overcharged, a comprehensive control method of on-time control, voltage control and temperature control can be used. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: What are the advantages of iron-lithium batteries?