What are the differences between lithium-ion battery chargers and lead-acid battery chargers?

Li-ion 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-ion batteries are active against overcharge, so the protection circuit is messy. For a single-cell nominal 3.6V lithium-ion 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-ion battery implements constant current and constant voltage. Because the internal resistance of the lithium-ion battery is small, the constant current is first ensured in the design of the charger standard, no matter what low power the lithium-ion battery is lacking, When charging, it can only output the nominal value, which is the limit of constant current; while the lead-acid battery is not so delicate. The electric vehicle has a suitable charger, which can use pulse charging, three-stage, constant current and constant current. Trickle charging. 2. Lithium-ion batteries have higher requirements for chargers and protection circuits, so lithium-ion battery chargers usually have higher control precision, which can charge lithium-ion batteries with constant current and constant voltage; lead-acid battery chargers The range of charging voltage and battery capacity 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. The lithium ion battery charger charges the lithium ion battery in the state of nickel hydrogen or nickel cadmium battery, the battery will not be fully charged and greatly shortens the working time; if the charger is charging the lithium ion battery in the state of nickel battery, Overcharge of lithium-ion battery will seriously affect the service life of the battery; 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, fully protect the normal battery It will not be damaged due to quality problems of the charger. 4. The lithium ion battery charger is a charger specially used to charge lithium ion batteries; the lead-acid battery charger can be used to charge 12V/1Ah-28Ah batteries and accumulators of motorcycles, electric vehicles, and automobiles. It is specially designed for small A charger designed for lead-acid batteries. 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: What are the differences between domestic and imported 18650 lithium-ion batteries?