... : currently the safest li-ion battery, CE IS approved ,none fire ,none explosive.2.Environment friendly , no toxic material contained.3.Powerful : HP battery can ... in size and light in weight.: Compare with our battery ,1/2 size of lead acid battery,70% size of Ni-MH Ni ... for sealed lead acid battery,our case with special Structure to benefit for Oxygen cycle to minimize the loss of electrolyte.Our ...