What are the differences between the charging methods of lithium batteries and lead-acid batteries?

What are the differences in charging methods between lithium batteries and lead-acid batteries? 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 must 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. Nominal (such as 1A), this is the limit of constant current. The special feature of this mobile phone charger is to ensure that the voltage is higher than 4.2v when ensuring constant current. If it is low, no current can be formed. During charging, the current of the lithium battery will gradually decrease with the gradual increase of the power, and the voltage will gradually rise, and finally it will automatically cut off when it reaches the standard 4.2v. Because lithium batteries are more delicate, you must pay attention to the technical content of the protection board, and you must not be sloppy. If you continue to charge more than 1%, accidents such as swelling will occur, so you must pay attention to the original factory adaptation of the charger, and don't mix the chargers. 2 Lead-acid batteries are not as expensive as lithium batteries. For example, you can use a transformer and a diode half-wave rectifier to charge them, but this is not recommended. Electric vehicles are equipped with a suitable charger, which can use pulse charging, divided into three stages, constant current and constant voltage trickle charging. Why pay attention to 30% charging upwards? When charging with low battery, it will transmit power with constant current and full load. At this time, the heat of the electrode plate will be the largest, which will cause the lead powder of the electrode plate to fall off, which will make the battery cruising range shorter and shorter. In fact, the lead battery charger is also similar to the lithium battery charger. When charging, each 12V battery can be allocated to a voltage of 14.5V. It not only guarantees constant current but also ensures sufficient voltage. When the voltages on both sides are similar, trickle charging occurs. Wait for charging. The current is cut off when the box cools down. If you suspect that the battery will be charged or damaged after the charging is over, you only need to string an ammeter on the output terminal, and see if there is any needle movement after the green light turns? 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 lithium batteries and lithium batteries?