li-ion 14.8V

This battery pack is made of best quality tested  ICR 18650 2000mAh 20C Lithium-Ion Batteries and BMS circuit. It is very small in size and weight compared to Ni-Cd, Ni-MH, and Lead Acid Batteries. With the inbuilt Charge protection circuit, the battery pack can be directly charged with the DC power Adapter, so need not use the specialized battery chargers and worry about overcharging.