specification:Maximum discharge current: 15AInstantaneous discharge current: 70ACharging voltage: 28.8VMaximum charging current: less than equal 15AOvercharge detection voltage: 4.250.025VOvercharge protection delay: 100msOvercharge release voltage: 4.150.05VBattery balance detection voltage: /Battery balance release voltage: /Battery balance current: /Overdischarge detection voltage: 2.8 0.08VOverdischarge detection delay: 50msOverdischarge release voltage: 3.00.1VOvercurrent detection voltage: 150mVOvercurrent detection delay: 15msOvercurrent protection current: 755AOvercurrent protection release condition: disconnect loadShort circuit protection condition: external load short circuitShort circuit detection delay: 200uSShort circuit protection release condition: disconnect loadMain circuit conduction internal resistance: less than equal 15mWorking current: less than equal 50uATemperature range: -30/+80CSize: 63 * 33 * 10mmColor: Silver + GreenMaterial: metal + PCBPackage Contents:1 * Li- Battery Protection Board1 * Cabel wireOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.