Lithium battery protection board wiring tutorial: Remove the original battery packaging, then use a soldering iron to separate the battery protection board. Likewise, remove the protection board from your new battery and. Connect the battery to simply use the old protection board.
There are two design methods for lithium battery protection plates, positive plate and negative plate. The principle and the goal are the same. However, the device does not support changing the parameters of positive and negative protection boards through software, so the protection method can only be determined by correct physical connections, and the software used is also different .
Method
Some lithium-ion batteries have a third line of temperature protection, and some have llines for checking battery information (for example, if a non-original battery is replaced, call the police). Lithium-ion batteries are both batteries + protection boards. 3 wires will only appear on the shield plate, and the battery will still only have 2 wires. There are two types of lithium-ion batteries. The obvious 3.7V is colored aluminum phosphate and can be replaced directly. Ensure that the humidity of the equipment operating environment is between 30% and 50%. If the humidity is too high, it is easy to cause ring leakage and electric shock. Connect the appropriate power supply (AC220V/0.1A), turn on the power button of the general device, and turn on the buttons of each power module.