4S Balanced BMS (Battery Management System) for use with 4 x 3.7v Lithium batteries
This BMS is designed to charge and manage the use of 4 lithium batteries. It will manage the balanced charging when used with an apropriate constant current power supply for the batteries. It will also protect the batteries from both over voltage and under voltage. It also features over current and short circuit protection.
This BMS will balance charge 4 lithium batteries like 18650 or 26650 or can charge multiple sets of 4 in paralel for higher capacity/current uses. It will also balance charge 4S LiPo (Lithium Polymer) battery packs.
A constant voltage/current power source is needed to properly use this BMS like the BCD5A
Voltage in : 16.8V - 18.1VDC
Over Voltage Protection : 4.2VDC per cell
Under Voltage Protection : 2.5VDC per cell
Maximum Charging Current : 20A
Maximum Discharging Current : 40A
Over Current Protection : 80A
Dimensions : 60mm x 45mm