Specifications Over charge detection voltage 4 28 0 05 VOver charging voltage 4 095 4 195VOver discharge voltage 2 550 08Over charge detection delay time 0 1sTemperature range 30 80Short circuit detection delay time 100msOver current detection delay time 500 msBalanced current 60mAWorking current 30AOver current 60AShort circuit protection function there is disconnect the load can be self recovery Size 45x56mmMain function Over charge protection over discharge protection function short circuit protectionfunction over current protection function band balance Interface definition Charging port of the plate and the discharge port is the same both positive and B connectingbattery P charging port and port on the negative electrode B N P pads are all over the hole the hole diameter of the pad is 3 5mm The battery charging detection interface with DC output in the form of needle Do the same mouthwhen the N is not wiring Package included 3 x 4S 30A 14 8V Li ion Lithium 18650 Battery Protection board