Product selling point:1: Wide range of applications2: Simple to use3: Real-time detection of the voltage of each battery4: Realize the protection functions of battery overcharge, overdischarge, discharge overcurrent, short circuit, charging overcurrent, temperature protection, etc.5: cost-effectiveThis product uses 5 series lithium battery special IC as the processor to detect the voltage, charge and discharge current and ambient temperature of each battery in real time, and realize the overcharge, overdischarge, discharge overcurrent, short circuit, charge overcurrent, temperature and other information of the battery. protection, etc.Parameter:Charging voltage: 21VSingle-cell charging voltage: 4.225VContinuous discharge current: 0-20AOvercharge single cell detection voltage: 4.225VOvercharge protection delay: 1sOvercharge single cell recovery voltage: 4.1VOvercharge protection release delay: 1msOver-discharge single cell detection voltage: 2.7VOver-discharge protection delay: 1sOver-discharge single cell recovery voltage: 3.0vOver-discharge protection release delay: 1S±20msOvercurrent detection voltage: 0.1-0.2VOvercurrent detection current: 50±5AOvercurrent detection delay: 1sRecovery status: automatic recoveryWith or without short circuit protection: yesShort circuit detection delay: 250usShort circuit release delay: 1SShort circuit detection voltage: 0.5VRecovery state: automatic recovery after disconnecting the loadOver temperature protection temperature: 70±5℃Over temperature recovery temperature: 55±5℃Working status: 15uA (25℃)Sleep state: 6uA (25℃)Discharge main circuit internal resistance: 10±2mΩWorking temperature: -40℃-85℃ Relative humidity≤75%Storage temperature: -40℃-125℃ Relative humidity≤75%L*W: 80.5*45 (mm)Net weight: 25GPackage Included:1* Lithium battery protection board