The difference between lithium battery and lead-acid battery charger
Lead-acid batteries and lithium battery chargers have different charging control methods. The voltage levels of lithium batteries and lead-acid batteries do not match. Moreover, there are many types of lithium batteries, and battery performance and battery protection board parameters may be different. Lead-acid batteries: The ideal charging current for lead-acid batteries is pulsed. Pulse charging is the best method for 50-60Hz power supply with straight rectification and no filtering (simple circuit and low cost). Due to the high self-discharge rate of lead-acid batteries, constant voltage charging is usually used when power frequency charging is used (the current must be limited). Can the chargers of lithium batteries and lead-acid batteries be used in common? The answer is not fixed. If a lithium battery with the same voltage can be charged with lead-acid batteries, lead-acid batteries cannot charge lithium, because lithium has higher electrical safety requirements. Lithium battery: Lithium battery charging control is first based on constant current charging, and then when the battery voltage rises to 4.2V, the charger tests the current. When the current is less than a certain value, the charging ends. Lithium is sensitive to overcharge and its protection circuit is complicated. Regarding a single battery with a nominal 3.6V, the maximum charging rated voltage is 4.2V, and the maximum allowable error limit is not more than 1. Lithium batteries are primary batteries made of metal lithium or lithium alloy as the negative electrode material and using non-aqueous electrolyte solutions. It is different from rechargeable batteries, lithium batteries and lithium ion polymer batteries. The inventor of the lithium battery is Edison. Due to the active chemical characteristics of lithium metal, high environmental requirements are put forward for the production, storage and use of lithium metal. Therefore, lithium batteries have not been used for a long time. With the development of microelectronics technology at the end of the 20th century, miniaturized devices are increasing day by day. Lithium batteries have entered a large-scale practical stage. Lead-acid batteries (VRLA) are batteries that use lead and its oxides as electrodes and the electrolyte as a sulfuric acid solution. In the discharge state of lead-acid batteries, lead dioxide is an important component of the positive electrode, lead is an important component of the negative electrode, and in the charged state, lead sulfate is an important component of the positive electrode and the negative electrode. The nominal voltage of a single grid lead-acid battery is 2.0V, which can discharge 1.5V and recharge 2.4V. In use, 6 single-grid lead-acid batteries are usually connected in series to form nominal 12V, 24V, 36V, 48V 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 is the use of conductive coating technology in lithium iron phosphate batteries?