What are the charging methods for lead-acid batteries and UPS lithium-ion batteries?

At present, there are two types of lead-acid batteries and UPS lithium-ion batteries on the market. The two types of chargers cannot be mixed, otherwise the batteries will be directly scrapped. Because the charging mode of the lithium battery charger and the lead-acid battery charger does not communicate. Lithium-ion batteries are charged at constant current and voltage, and lead-acid is charged in three stages. Since lead-acid battery chargers are generally configured in two-stage or three-stage charging mode, the voltage grades of lithium-ion batteries and lead-acid batteries are not matched. There are also many types of lithium-ion battery UPS, and the battery performance and battery protection board parameters are probably not communicated. Therefore, lithium-ion batteries do not communicate like lead-acid batteries, and there are universal battery chargers. Generally speaking, lithium-ion batteries are equipped with special chargers when they leave the factory. In order to protect the lithium-ion battery, a special charger is required. Li-ion battery UPS charging control is to charge according to a constant current first, and then when the battery voltage rises to 4.2V, the voltage does not rise again, and the charger detects the current. If the current is less than a certain value, the charge is completed. Lithium batteries are sensitive to overcharge, so the protection circuit is huge. The highest charging rated voltage for a single battery with a nominal 3.6V is 4.2V, and the upper limit of the allowable error is not more than 1%. The ideal charging current for lead-acid batteries is pulsed. The pulse charging is best when the 50-60HZ mains power supply we use is directly rectified and unfiltered pulsating DC charging (this is established when the circuit is simple and the cost is low). The self-discharge rate of acid batteries is relatively large. When recycling power frequency charging, the constant voltage charging method is generally used (the current must also be limited). Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete it.