Maximum discharge current: less than equal 20A Instantaneous discharge current:100A Charging voltage: 42V Maximum charging current: 20A Overcharge detection voltage: 4.28±0.05V Overcharge protection delay: 100ms Overcharge release voltage: 4.08±0.05V Overdischarge detection voltage: 2.55 ± 0.08V Overdischarge detection delay: 50ms Overdischarge release voltage: 3.0±0.1V Overcurrent detection voltage: 150mV Overcurrent detection delay: 15ms Overcurrent protection current: 120±20A 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 equal 15mΩ Working current: less than equal 40uA Sleep current (when the battery is over-discharged): less than equal 10uA Temperature range: -30/+80°C size:69 x 51.5 x 10mm Material:Metal + PCB colour:Silver + green Package Contents: 3 x Li-ion Battery Protection Board 3 x Cabel wire Only the above package content, other products are not included. Note: Light reflection 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.