... 76*110mm 3.weight: 6.5kg 4.500 time cycle life 5.24V10Ah,36V10Ah,48V10Ah,48V15Ah are all ok NoItemGeneral ... more stable4.Certifications : CE,UL,FCC, RoHS,ISO90015. Long life cycle, No memory, environment friendly Advantages:1, High energy density2, ... single battery cells3, Pollution-free, environment friendly4, Long cycle life; It extends its cycle life up to 800 cycles5,Capacity, resistance, Voltage, ...