... 3. Compose Type: Injection Technology to make battery more stable 4. Certifications: CE, UL, FCC, RoHS, ISO9001 5. Long life ... ) after standard charge 3. Nominal Voltage: 48V: Mean Operation Voltage 4. Cycle Life: Higher than 70% of the Initial Capacities of the ... , High working voltage for single battery cells 3, Pollution-free 4, Long cycle life 5, No memory effect 6, Capacity, resistance, Voltage ...