Bulldog Airsoft 1200mAh 11.1V Li-Po Battery, Li-Po batteries (short for Lithium Polymer) are a type of rechargeable battery that has taken the electric Airsoft world by storm. When compared to their old NiCd/NiHm counterparts, Li-Po batteries have three main things going for them that make them the perfect battery choice for Airsoft.
Li-Po batteries are light and small
Li-Po batteries have large capacities, meaning they hold lots of power in a small package
Li-Po batteries have high discharge rates to power the most demanding electrics