Overcharge and discharge protection to prevent overcharge and discharge of the battery. Overcurrent protection to prevent abnormal high current of batteryBalance protection, battery voltage balance, make battery life Stable heat dissipation, stable heat dissipation of the aluminum substrate, safety protection absorbs anti-high voltage, reduces MOS tube breakdown, ultra-low internal resistance MOSSuitable for most electric tools on the market, electric , electric bicycles, electric tricycles, electric motorcycles, electric vehicles, electric tools, etc.Discharge current: 60AMain circuit conduction internal resistance: less than 20mohmCharging voltage: Iron lithium battery string number X3.6VOvercharge protectionDetection voltage: Iron lithium 3.65+/-0.03VDetection delay: 1000msRelease voltage: Iron lithium 3.45+/-0.05VBalance voltageDetection voltage: Iron lithium equal 3.4VRelease voltage: Iron lithium less than 3.4VBalance current: 20-30mABMS working power consumption: less than 50uADifferent batches may cause differences in product appearance, text, and color, which will not affect the useColour:silver+greenMaterial:Metal+PCBPackage Contents:1 x Protection Board1 x cableOnly the above package content, other products are not included.Note: Light reflection 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.