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14.8V 4S 30A 18650 Lithium Battery BMS PCB Integrated Circuits Protection Board
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About 14.8V 4S 30A 18650 Lithium Battery BMS PCB
Note: In order to achieve a better balance of the balance effect, please use a 17V power supply 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 16.8 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 make the voltage of each group unbalanced. Regarding the voltage drop between the battery voltage and the output voltage, the working principle of this type of protection board is the negative pole protection. Some combination will have a voltage drop of 0.1-0.3, and charging and discharging several times will reduce the voltage drop voltage, It is normal. The charger should not to use the 14V power supply. The 4-string lithium battery is fully charged 14.4V-14.8V. The 14V power supply will be not full charged and the protection board will not be protected. Specifications Over charge detection voltage: 4.28+ 0.05 V Over charging voltage: 4.08 ± 0.1 Over discharge voltage: 2.55±0.08 Over charge detection delay time 0.1s Temperature range? 30/+80? Balanced current: 60±5 mA Working current: 30A Over current: 75±5A Short circuit protection function: there is, disconnect the load can be self recovery. Size:56*45*3mm Main function: Over charge protection, over discharge protection function, short circuit protection function, over current protection function, balance. Interface definition: Charging port of the plate and the discharge port is the same, both positive and B connecting battery" ", P charging port and port on the negative electrode; B , N , P pads are all over the hole, the hole diameter of the pad is 3.5mm; The battery charging detection interface with DC output in the form of needle. Do the same mouth when the N is not wiring.
