1. The order of wiring is wrong, measure the wiring to confirm whether the voltage of each battery string is correct. 2. After power-on protection, the lithium iron battery is at 2.8V-3.4V, and the polymer (ternary) is at 3V-4V. Charge or discharge the battery to the voltage range without the protection board, and then connect the protection bo...

It may be related to the capacity or internal resistance of the battery. You can first lower the high or low battery separately or charge it up to the same voltage as other batteries. Charge and discharge several times to see if the voltage of the string of batteries is still high during charging, it means the capa...

The overcurrent protection is 2 to 3 times of the continuous current, and it will be protected only when the overcurrent value is reached within 200ms. If the continuous current of the protection board is exceeded and the overcurrent value is not reached, the protection board cannot bear it, and the heat will be severe, which m...