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.Product name: battery protection boardProduct type: 20 strings of iron lithium 45A protection boardSpecifications: 20 strings of 60V iron lithium with 45AProduct size: 120 x 60 x 10mmApplicable: Nominal iron lithium 3.2VOvercharge: Fe- 3.750.025VOverdischarge: Fe- 2.10.1VWorking temperature: -30/+80Short circuit protection: 300USSelf-consumption: 35UACharging voltage: the number of iron-lithium battery strings x 3.65VDischarge current: 45ACharging current (same port): 15AMain circuit conduction internal resistance: 15MQDischarge overcurrent protection: 15030AProduct application range: electric vehicles, tricycles, solar inverters for electrical equipment, high-power equipment, etc.Different production batches, the appearance of products and accessories will be slightly different, does not affect the usecolor:SilverMaterial:PCB+MetalPackage Contents:1 x Battery 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.