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Lithium Battery is dangerous!
Do not charging indoor!
Make sure you are professional on it and bear all the risk yourself!

Battery Model: ND280
Battery Brand: CATL
Battery Type: Ternary lithium battery
Battery weight: 4250g
Battery size: 250mm * 118mm * 68mm
Battery capacity: 280AH
Internal resistance: 0.22mΩ
End-of-discharge Voltage: 2.8v
End-of-charge Voltage: 4.2v
Fast Charging current: 0.5C
Max Continuous Discharge current: 2C
Cycle Life: 3500
Grade: B
Condition: Brand new