Features 1、Multiple Protection Functions: Built in smart chip, with multiple protection functions such as overcurrent, overvoltage, high temperature, short circuit, etc., giving you peace of mind 2、More Intelligent: Integrated BMS solution is developed from the single cell cascade solution, has the advantage of a single chip to control multiple strings of lithium batteries. One core has multiple functions and is more intelligent 3、High Efficiency MOS Tube: Special high efficiency MOS tube, the lower internal resistance, the less loss, and the stronger the power 4、Safe And Reliable: The same port balance is passively balanced, safe and reliable. Aluminum alloy heat sink can quickly dissipate heat to ensure the safety of components 5、Achieve Balancing: Use resistance heat to release the excess power of high capacity batteries so as to achieve the purpose of balancing and extend battery life 6、Applied To Power Tools: Protection board can be applied to power tools, electric scooters, motorcycles, electric motorcycles, electric tricycles, electric vehicles and other supporting lithium batteries Specification Item Type: Battery Protection Board Protection Function: Overcharge, overdischarge, overcurrent, temperature control, balance protection, etc. Charging Voltage: Number of strings·overcharge voltage(ternary 4.2V) Applicable Single Battery Voltage: 3.7V Overcharge Protection: Detection Voltage: 4.25V±0.05V Detection Delay: 1S Release Voltage: 4.15V±0.05V Balance Voltage: Detection Voltage: 4.18V Release Voltage: 4.18V Balance Current: 30mA±5mA Over Discharge Voltage Protection: Detection Voltage: 2.7V±0.1V Detection Delay: 1S Release Voltage: 3.0V±0.1V Over Discharge Current Protection: Detection Delay: 1S Release Condition: Disconnect the load Short Circuit Protection: Trigger Condition: Short circuit of external load Detection Delay: ≥250us Release Condition: Disconnect the load Temperature Control Protection: Temperature During Charging: <-5℃; >50℃ Temperature During Discharge: -20℃~75℃ Self Consumption: Working Power Consumption: 100uA Sleep And Over Discharge Power Consumption: 20uA Placement Temperature: Temperature Range: -40℃~80℃ Package List 1 x Battery Protection Board 1 x Flat Cable