The Wondom BCPB3 is a battery management and protection module, taking advantage of the performance and reliability of the previous models while offering more battery slots.  The BCPB3 can thus accommodate 5 Lithium 18650 batteries in series and can be used as a power bank, as a power supply or simply to recharge your batteries for external use.  The module supports a wide range of input charging voltages and hybrid charging sources.  Any 5-24V 2A AC adapter can be used to charge the batteries with the BCPB3. 

The balancing and protection circuitry constantly monitors each cell voltage, charge/discharge current and temperature to provide effective protection against overloads, overdischarges, input/output overcurrents, short circuits and overtemperatures.