Description Voltage : 48V Capacity: 20Ah/30Ah/35Ah Cut-off voltage: 35V Max. discharging current: 80A(20Ah),100 A(30Ah/35Ah) Max Continuous Discharging Amperage: 40A(20Ah),50A(30Ah/35Ah) Charging Current: 3A(20Ah),5A(30Ah/35Ah) Charging Voltage: 58.8 Volts Lifecycle: > 85% capacity after 1000 cycles. Lifecycle of single cell: >85% capacity after 1000 cycles, > 70% capacity after 1500 cycles. (<1C discharge rate and <1C charge rate) Dimensions(20Ah): 220*150*150mm/8.66*5.9*5.9inch Dimensions(30Ah): 260*160*160mm/10.24*6.3*6.3inch Dimensions(35Ah): 260*160*160mm/10.24*6.3*6.3inch Weight(20Ah): about 8.1kg(17.86lbs) Weight(30Ah): about 11.2kg(24.69lbs) Weight(35Ah): about 12.8kg(28.22lbs) 48V Charger for This Battery Pack Output: 58.8V 3A(20Ah), 5A(30Ah/35Ah) It takes 7-8 hours to charge this battery pack. Light turns green when charging is finished. How to install The thick wires (red represent "+",black represent "-") from battery link with the Anderson connectors for discahrge. The thin wires (red represent "+",black represent"-") from battery link with the three-hole connector for charger. The Discharge and charge cannot be performed at the same time. Packing List: 1 pack 48V Lifepo4 Battery. 1 pcs 48v Charger. A pair of Anderson connector A three-hole connector Shipping and payment Send by FedEx from USA within 3-5 Days Working days Fast Shipping. We only accept paypal payment. Features The lithium battery is the most advance rechargeable battery available for electric scooters. The lithium battery is lighter and cheaper compared with an equivalent battery. They are nontoxic to the environment,stable,and have the greatest charge density to weight ratio of any battery available it is safe,not combust or catch fire Notes If you need a special custom battery program, Welcome to Email us. Please kindly give us your telephone number for delivery when you pay it. The battery warranty is one year.If you have any questions, please feel free to contact us.