The difference between lithium battery charger and lead-acid battery charger

Lithium battery charging control is to charge according to the stable current first, and then when the battery voltage rises to 4.2V, the voltage does not rise again. The charger tests the current and completes charging assuming that the current is less than a certain value. Lithium batteries are active in overcharging, so the protection circuit is messy. For a single-cell nominal 3.6V lithium battery, the highest charging rated voltage is 4.2V, and the upper limit of the permitted fault is not more than 1%. For lead-acid batteries, the aspirational charging current is pulsed. For pulse charging, direct rectification and unfiltered pulsating DC charging with the mains 50-60HZ power supply we use is the best, because the self-discharge rate of lead-acid batteries is relatively large, so power frequency charging is used. At the time, generally use the stable voltage charging method. 1. The charger adapted to the lithium battery implements constant current and constant voltage. Because the internal resistance of the lithium battery is small, the constant current should be ensured in the design of the charger standard. No matter what low power the lithium battery is lacking, it can only output when charging. Nominally, this is the limit of constant current; while lead-acid batteries are not so delicate, electric vehicles are equipped with suitable chargers, which can use pulse charging, three-stage, constant current and constant voltage trickle charging. 2. Lithium batteries have higher requirements for chargers and need to protect the circuit, so lithium battery chargers usually have higher control precision, which can charge lithium batteries with constant current and constant voltage; lead-acid battery charger charging voltage and The battery capacity range is wide, the battery is saturated to prevent overcharging, the short circuit automatic protection, the safety factor is high, the heat is small, the efficiency is high, and there is no damage to the battery. 3. When the lithium battery charger charges the lithium battery in the state of nickel-metal hydride or nickel-cadmium battery, the battery will not be fully charged and greatly shortens the working time; if the charger is charging the lithium battery in the state of nickel battery, the lithium battery will Overcharging seriously affects the service life of the battery; the lead-acid battery charger is not afraid of short circuit and wrong connection, short circuit, overload, over current, automatic reverse connection protection, high safety factor, low thermal efficiency, and fully protect the normal use of the battery. The charger is damaged due to quality problems. 4. The lithium battery charger is a charger specially used to charge lithium batteries; the lead-acid battery charger can be used to charge 12V/1Ah-28Ah batteries and accumulators of motorcycles, electric vehicles, automobiles, and is designed for small lead-acid batteries. A charger designed like a battery. 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: How about the working temperature of the lithium battery?