Specifications of 4 Series LiFePO4 Batteries Charge & Discharge Guard Shield Application The product could be widely used in the fields of electric devices, electric vehicles, standby power supply and power supply of military equipment, etc.Features Provide protection function and balance function to 15 cells High Power LiFePO4 Battery in series. Over voltage, under voltage, over current, short circuit. Bleeding for cell balance. Low power consumption. Functions:The product has 6 main functionsover charge, over discharge, over current, short circuits, balancing and low-current lock. Function of over charge protectiononce voltage of any battery in the group gets higher than the over charge protection point, charge cuts off to ensure all batteries work within the over charge protection point.Function of over dischargeonce voltage of any battery in the group gets lower than the over charge protection point, discharge cuts off to ensure all batteries work beyond the over charge protection point.Function of over currentduring the discharge process of battery group, once discharge current gets over the set over current protection point, output cuts off to ensure battery group works within the safe limit of current.Function of short circuit protectiononce battery group's output port appears the condition of short circuit, it cuts off to ensure battery group not to be damaged because of short circuit.Function of voltage balancingin the late charging period of battery group, voltage difference that appears during the using process of each battery could get balancing revised to ensure battery group's capacitance.Function of low-current lockseries connection of low-current lock gets reserved and low current controls on-and-off of the main high current to make it safer and more convenient. Specification Overcharge Detection Voltage3.90V (3.87V-3.93V)Overcharge Release Voltage3.80V (3.77V-3.83V)Balance Activation Voltagecells voltage greater than 3.6VBalance Release Voltagecells voltage less than 3.6VBalance Current75mAOverdischarge Detection Voltage2.00V (1.95V-2.05V)Overdischarge Release Voltage2.30V (2.25V - 2.35V)Overcurrent Detection Current25A (20A-30A)Max. Continuous Discharge Current14ACurrent Consumption in Normal Operation (B-)less than 10uACurrent Consumption in Overdischarge and Load not Removed (B-)less than 200uACurrent Consumption in overdischarge and load removed (B-) less than 10uAOperatingTemperature Range-20~+60CHumidity0~90% Rh (No waterdrop)StorageTemperature Range+10~+30CHumidity0~90% Rh (No waterdrop) Download product data sheet here.Usage and Attention:After purchasing the protection mold, users should connect lines in compliance with the instruction. Voltage usually exists in the battery, so operators should peel one line and then connect another starting from B-. Lines should be connected from the low position to the high position with no mistake of order, or the irreparable damage could be cau