... system, UPS and energy storage. 1. Large capacity available, 99% of the capacity available (50%--60% for lead-acid battery).2. Green ... 3. High density of energy, high specific capacity, with higher capacity than lead- acid battery with same size.4 ... Long cycle life, 4-5times of the lead-acid battery.6. Low self-discharge rate, only 1/20 ... , over charge and over discharge. 12V 10Ah Lithium battery for UPS