Features: Suitable for 16 serial battery pack of ternary lithium battery, lithium cobalt battery, lithium manganese battery, and LiFe battery. Single cascade scheme, change the wiring method can make the board used to protect the less serial of battery pack. The board provides protection functions including overcharge, overdischarge, overcurrent and short circuit protection. With balance charge function to balance the battery for better consistency of battery pack. Thickened aluminum heatsink for quick heat dissipation. Specification: Options 3.2 V 25A 3.2V 30A 3.6/3.7V 25A 3.6/3.7V 30A Discharge Continuous Discharge Current 35A 45A 35A 45A Instantanious Current (<1s) 50A 60A 50A 60A Overcurrent Protection Current 3~5 times of continuous current Charge Charge Voltage 3.6V * serial qunatity 4.2V * serial qunatity Max Charge Current 20A 25A 20A 25A Overcharge Protection Detection Voltage 3.75V±0.025V 4.25V±0.03V ≥4.18V Balance Current 20-30mA Overdiscahrge Protection Detection Voltage 2.1V ±0.08V 2.8V ±0.1V Detection Delay 2.3 ±0.1V 2.9 ±0.1V Overcurrent Protection Detection Voltage 200mV 150mV Detection Delay Disconnect with load / Charge activation Short Circuit Protection Protection Condition External load short circuit Detection Delay 200us Release Condition Disconnect with load / Charge activation Self Power Consumption Working Current <40uA Sleeping Current <30uA Product Size 69*56*15mm / 2.7*2.2*0.6in Weight Approx. 98g/3.4oz Package list: 1 * Protection Board 1 * Ribbon Cable