2X(1,Overcharge and discharge protection to prevent overcharge and discharge of the battery. Overcurrent protection to prevent abnormal high current of battery
2,Balance protection, battery voltage balance, make battery life longer
3,Stable heat dissipation, stable heat dissipation of the aluminum substrate,
4, safety protection absorbs anti-high voltage, reduces MOS tube breakdown, ultra-low internal resistance MOS
5,Suitable for most electric tools on the market, electric scooters, electric bicycles, electric tricycles, electric motorcycles, electric vehicles, electric tools, etc.

Product name: 4 strings lithium battery protection board
Material: PCB+Metal
Color: silver
Model: 4S 120A balanced with the same port-3.2v
Continuous working current: within 120A
Momentary working current: within 300A
Charging voltage: 12.8-16V
Charging current: within 50A
Overcharge protection voltage: single cell 3.75V+/-0.025V
Over-discharge protection voltage: single cell 2.10V+/-0.05V
Short circuit protection: Yes (short circuit test is not recommended)
Applicable assembly: three strings of nominal 3.2V lithium iron phosphate batteries
Load power: DC 12V within 1500 watts (actual motor starting current is less than 300A
Product size: 56 x 86 x 14mm
advantage:
1. Optimized line, bilateral mos channel
2. Increase the heat dissipation aluminum sheet
3. Thicken the copper skin of the circuit by 2oz
4. original for Hongkang ic
5. 20 high-power mos on both sides

Package Contents:
1 x 4 series lithium battery protection board
1 x Sampling cable)