CM1401-GT TSSOP-16 BY ICM IN STOCK. AVAILABLE AT BEST PRICE. The CM1041 series is a protection chip dedicated to 4-string lithium/iron batteries. It has built in high-precision voltage detection circuit and current detection circuit. By detecting the voltage, charge and discharge current and temperature of each battery, it can realize battery overcharge, over-discharge, discharge over-current, short circuit, charging over-current, over-temperature and other protection functions. The overcharge, over-discharge and over-current protection delay can be adjusted by external capacitors,