Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si Maximum discharge current: less than equal 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 equal 15mohm Working current: less than equal 40uA current (when the battery is over-discharged): less than equal 10uA Temperature range: -30/+80C Different batches, product appearance and color may be different, does not affect the Colour:silver + green Material:PCB+Metal Size:63 x 33 x 10mm Package Contents: 1 x Protection Board 1 x cable Only the above package content, other products are not included. Note: Light reflection 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.