Battery characteristics Rechargeable alkaline batteries. Environmental protection material Excellent high discharge / drain performance Superior Performance under low temperature conditions More time on high consumption devices. Provides excellent sources of continuous power for your devices High energy density, long battery life at low discharge. It is compact and rechargeable, so you can carry it anywhere anytime,Convenient to use. Made of high quality material, it can prevent electrolyte leakage, break and scratch. Rechargeable batteries features extensively long working life and high efficiency, Great for use.