Overcharge and discharge protection to prevent overcharge and discharge of the battery. Overcurrent protection to prevent abnormal high current of battery<br> Balance protection, battery voltage balance, make battery life longer<br> Stable heat dissipation, stable heat dissipation of the aluminum substrate,<br> safety protection absorbs anti-high voltage, reduces MOS tube breakdown, ultra-low internal resistance MOS<br> Suitable for most electric tools on the market, electric scooters, electric bicycles, electric tricycles, electric motorcycles, electric vehicles, electric tools, etc.<br> Discharge current: 60A<br> Main circuit conduction internal resistance: less than 20mohm<br> Charging voltage: Iron lithium battery string number X3.6V<br> Overcharge protection<br> Detection voltage: Iron lithium 3.65+/-0.03V<br> Detection delay: 1000ms<br> Release voltage: Iron lithium 3.45+/-0.05V<br> Balance voltage<br> Detection voltage: Iron lithium equal 3.4V<br> Release voltage: Iron lithium less than 3.4V<br> Balance current: 20-30mA<br> working power consumption: less than 50uA<br> colour:White+green<br> Material:PCB<br> Package Contents:<br> 2 x Lithium Battery Charger Protection Board<br> Only the above package content, other products are not included.<br> Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.