... capacity available, 99% of the capacity available (50%--60% for lead-acid battery).2. Green and environmental, no containing acid and heavy ... specific capacity, with higher capacity than lead- acid battery with same size.4. High cell discharge platform, the discharge platform with voltage ... 12.8V.5. Long cycle life, 4-5times of the lead-acid battery.6. Low self-discharge rate, only 1 ...