... life 1000 times CE,RoHS,SGS certificate OEM/ODM Rechargeable 24V 10Ah E-bike Battery LiFePO4 Battery Pack for Electric Vehicles Specifications ... 1.3kgs (24V) and 2.0kgs (36V) in weight, 1/6 & 1/7 of the weight of traditional li-ion battery ... formula has superior tolerance on character of charge and discharge.6.Completely battery certificates ISO9001,ISO14001,BATSO ,CE,UL,ROHS,UN38 ...