... ,RoHS,SGS certificate OEM/ODM Lithium Iron Phosphate (LiFePo4) 48V 10AH LFP E-bike Battery and EV Battery PackSpecifications: Nominal Voltage48VNominal Capacity10AhInternal Resistance ... specific energy: soft packing with aluminum foil composite film on lithium-ion polymer battery, smaller , lighter,,higher specific energy than other batteries with ...