... Long life 1000 times CE,RoHS,SGS certificate OEM/ODM Lithium Iron Phosphate (LiFePo4) 48V 10AH LFP E-bike Battery and ... .0kgs (36V) in weight, 1/6 & 1/7 of the weight of traditional li-ion battery.2.Small volume, light weight, high ... specific energy: soft packing with aluminum foil composite film on lithium-ion polymer battery, smaller , lighter,,higher specific energy than other batteries ...