Overcharge and discharge protection to prevent overcharge and discharge of the battery Overcurrent protection to prevent abnormal high current of battery Balance protection, battery voltage balance, make battery life Stable heat dissipation, stable heat dissipation of the aluminum substrate, TVS safety protection absorbs anti-high voltage, reduces MOS tube breakdown, ultra-low internal resistance MOS Product name: lithium battery protection board Material: PCB+metal Color: silver : 13S 54.6V 35A Product type: PCB protection board Scope of application: nominal voltage 3.7V ternary lithium battery, 18650, etc. Charging voltage: 54.6V Maximum output current: 35A Overcharge protection: 4.25 0.025V Overdischarge protection: 2.7 0.1V Equalizing voltage: 4.2 0.025V Discharge overcurrent protection: 120 20A Short circuit protection: triggering condition: external short circuit; Detection delay: 300us; Release condition: disconnect the load Working consumption: 35uA over discharge consumption: 10uA Operating temperature range: - 30 /+80 Product size: 69 x 51 x 8.7mm Package Contents: 1 x Battery protection board 1 x flat 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.