BMS 4S (16.8V-30A ) Lithium Battery Protection Module With NTC For Electric Drill

Description

The protection board uses a mature 4 string dedicated lithium battery protection chip, with high integration,high sensitivity characteristics, through the detection of the battery voltage, charge and discharge currentand ambient temperature and other information on the battery overcharge, over discharge ,Discharge over-current, short circuit, charge over-current, temperature protection and other real-time protection,but also through the external circuit to achieve the adjustment of the parameters.The protection board program design mature, worry-free, is your trusted product. 1 - Voltage Charging voltage 16.8V Single charge voltage 4.2V 2 - CurrentContinuous discharge current 0-18A 3 - Overcharge protection Overcharge single section detection voltage 4.2±0.05V Overcharge protection delay 1S Overcharge charge recovery voltage 4.13±0.05V Overcharge protection to lift the delay 20mS 4 - Over discharge protection Over discharge test voltage 2.8V Over-release protection delay 1S Overdrive recovery voltage 3.0V Overdraft protection is released 20mS 5 - Overcurrent protection Overcurrent detection voltage 0.1V Overcurrent detection current 32±3A Overcurrent detection delay 300mS±100mS Recovery state Automatic recovery 6 - Short circuit protection With or without short circuit protection a short circuit protection Short circuit detection delay 20mS Short circuit detection voltage 0.8V Recovery stateAutomatic recovery after disconnecting the load 7 - Temperature protection Over temper