Specification:Without equalization protection board Continuous Discharge Current: 15A Instantaneous discharge current:150A Charging voltage: 54.6V Maximum charging current: 15A Overcharge detection voltage: 4.250.025V Overcharge protection delay: 100ms Overcharge release voltage: 4.150.05V Overcharge detection voltage: 4.20.025V Overdischarge detection voltage: 2.800.08V Overdischarge detection delay: 50ms Overdischarge release voltage: 2.90.1V Overcurrent detection voltage: 150mV Overcurrent detection delay: 10ms Overcurrent protection current: 755A 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 Temperature protection: Set as needed Main circuit conduction internal resistance: less than equal 15m Working current: less than equal 40uA Sleep current (when the battery is over-discharged): less than equal 10uA Temperature range: -30/+80C Please note: Different batches, product appearance and color may be different, does not affect the use Type:13S 48V 15A Protection Board color:Silver + green Material:Metal+PCB size:63 x 33 x 9mm 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 cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.