Can lead-acid batteries and lithium batteries be mixed?
by:Vglory 2021-03-06
The charging control method of acid battery and lithium battery charger is different, the difference is that the materials used are different, and the principle of discharge is also different. The charging and discharging conditions of storage batteries and lithium batteries will directly affect the electrical performance and service life of the batteries. At present, there are two types of lead-acid batteries and lithium batteries on the market. These two types of chargers cannot be mixed, or the batteries will be scrapped. Because the charging mode of the lithium battery charger and the lead-acid battery charger are different. Lithium batteries are charged with constant current and voltage, and lead-acid is charged in three stages. Since lead-acid battery chargers are generally set to two-stage or three-stage charging mode, the voltage levels of lithium batteries and lead-acid batteries do not match. There are also many types of lithium batteries, and battery performance and battery protection board parameters may be different. Therefore, unlike lead-acid batteries, lithium batteries have universal battery chargers. Generally speaking, lithium batteries are equipped with special chargers when they leave the factory. In order to protect the lithium battery, a dedicated charger is required. Lithium battery 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, the charger tests the current, and if the current is less than a certain value, the charging ends. Lithium batteries are sensitive to overcharge, so the protection circuit is complicated. For a single cell of nominal 3.6V battery, the highest charging rated voltage is 4.2V, and the allowable upper limit of error is not more than 1%. The ideal charging current for lead-acid batteries is pulsed. For pulse charging, the direct rectification and unfiltered pulsating DC charging of the mains 50-60HZ power supply we use is the best (this is the practice when the circuit is simple and the cost is low). The self-discharge rate of acid batteries is relatively large. When power frequency charging is used, constant voltage charging is generally used (the current will definitely be limited). 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: Is Tesla's battery technology due to more than 5 batteries?
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