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48V 20Ah lithium battery pack Specification: Rated voltage: 48V output rating: 1000w Characteristics 1. Extremely safe and stable chemistry: Rigid aluminum alloy housing protection, BMS or PCB built inside to protect the battery over charge and discharge. 2. Long life-cycle: 4-5 years / above 500 times cycle life. 3. Lighter and smaller: 1/3 weight of lead acid battery, 70% size/weight of Ni-MH/Ni-Cd battery. 4. Wide operating temperature: High temperature resistance (-20~60 degrees Celsius). 5. Steady performance: High power output, 1C continuous, 3C pulse for normal cells and 20C for special design. Low self-discharge rate, less than 3% monthly. 6. No memory effects and highly efficient charge: It can be recharged anytime, no reduction of the capacity 7. Green product: Environment friendly, clean and green energy, no pollution on our environment. Storage, Maintenance 1. When the battery pack to be long-term stored, charge the battery pack to about 50% capacity (after discharging completely, charge for 2-3h at 1.6A), store in dry and ventilated place, charge 1 to 2h for every 3 months. 2. The battery pack and charger should be stored in clean, dry and ventilated place, advoid contacting with corrosive materials and be away from fire and heat. 3. The battery pack should be stored in 40 %~60 % charged capacity. 4. If battery pack is not used for a long period, it should be replenish charging one time for 1h to 2h for every three month. 5. In the maintenance process, please do not disassemble the battery pack, otherwise it will cause a decline of battery performance. 6. Forbid to remove any cell in the battery pack. Forbid dissecting battery cells. More models:
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