Parameter:

Note：

In order to achieve a better balance of the balance effect, try to use a switching source with a voltage of 17V and a current capacity of 0.2 times (self-stop current is less than 30mA). Because the equalization current of the equalization IC is about 65mA, and most of the 16.8V lithium battery chargers on the market, the charging current detection will be self-stop when it is lower than 100mA. If there is no balance, there will be no electric charging, which will cause the voltage of each group to be unbalanced. Regarding the problem of voltage drop between the battery voltage and the output voltage, the working principle of this type of protection board is the negative pole protection. When the combination is just good, some voltage drops of 0.1-0. 3V will occur, and charging and discharging several times will reduce the voltage drop. Voltage, this is normal. The charger should try not to use the 16V power supply. The full load of the four-string lithium battery is 16.8V, and the 16V power supply will be full.