E-Bicycle Battery, Telecommunication Equipment, 48v, Emergency Lighting, Ev Battery, Scooter ... Operation Temperature Range: Charge: 0~45 Celsius degree, 60+/-25%R. H. Bare Cell Discharge: -10~60 Celsius degree, 12. ... Less than 1 year: -20~25 Celsius degree, 60+/-25%R. H. At the shipment state, Less than 3 months: - ... structure apprearance) 5, Bulk pack is available 24V 10ah Electric Bicycle Battery Pack