Maximum discharge current: less than 20A Instantaneous discharge current:100A Charging voltage: 42V Maximum charging current: 20A Overcharge detection voltage: 4.280.05V Overcharge protection delay: 100ms Overcharge release voltage: 4.080.05V Overdischarge detection voltage: 2.55 0.08V Overdischarge detection delay: 50ms Overdischarge release voltage: 3.00.1V Overcurrent detection voltage: 150mV Overcurrent detection delay: 15ms Overcurrent protection current: 12020A Overcurrent protection release condition: disconnect load Short circuit protection condition: external load short circuit Short circuit detection delay: 200uS Short circuit protection release condition: disconnect load Main circuit conduction internal resistance: less than 15m Working current: less than 40uA Sleep current (when the battery is over-discharged): less than 10uA Temperature range: -30/+80C size:63*33*10mm Material:Metal + PCB colour:Silver + green Package Contents: 1 * - Battery Protection Board 1 * Cabel wire Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.