Fast and Safe Charging with Lithium Battery Management -- Fast and Safe Charging with Smart Lithium Battery Management IC Balanced Charge Extends Battery Life - Balance the characteristics of each cell in the pack and extend battery life through balanced charging Multiple protections ensure safe use--provide multiple protection functions, including overcharge, overdischarge, short circuit and temperature protection Equipped with aluminum fins to ensure fast heat dissipation -- equipped with thickened aluminum fins to achieve rapid heat dissipation Multiple tests to ensure high quality -- this product has passed load and burn-in tests to ensure quality Name: 20s lithium battery protection system Protection functions: overcharge, overdischarge, overcurrent, temperature control, balance Using a single battery voltage: 3.7V Continuous current: 35A/40A Charging voltage: 55.25V Overcharge Protection: Detection voltage: 4.25V0.05V Detection delay: 1s Release voltage: 4.15V0.05V Over discharge protection: Detection voltage: 2.7V0.1V Detection delay: 1s Release voltage: 3.0V0.1V Overcurrent Protection: Detection voltage: continuous current * 2.5 times Detection delay: 1s Release condition: disconnect the load Voltage equalization: Detection voltage: Greater than 4.18V Release voltage: Less than 4.18V Current consumption: 30mA5mA Short circuit protection: Trigger condition: external load short circuit Detection delay: 700us Release condition: disconnect the load Temperature control protection: Charging working temperature: -20Celsius-55Celsius Discharge working temperature:ess than equal 70Celsius Release voltage: recovery within operating temperature Self-consumption: Working power consumption: 80uA Sleep/overdischarge power consumption: 30uA Colour:blue Material:pvc+aluminum Size:96 x 63 x 12mm Package Contents: 1 x bms battery charging protection boardA Sleep/overdischarge power consumption: 30uA Colour:blue Material:pvc+aluminum Size:96 x 63 x 12mm Package Contents: 1 x bms battery charging protection board Only the above package content, other products are not included. Note: Light shooting 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.