... is 100% green energy,no any pollutant such as cadmium,lead,mercury,etc.4.Non-metal LithiumLi-ion battery does not ... up to 2000 cycle life, some 8 times more than Lead Acid.5.Environmentally Friendly Non-toxic, non-contaminating, No rare ... in size and light in weight 1/3 weight of Lead Acid .Competitive AdvantagesWell and High Quality Control , Prompt Delivery , New ...