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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: ND40
Battery Brand: CATL
Battery Type: Ternary lithium battery
Battery weight: 800g
Battery size: 148mm * 92mm * 27mm
Battery capacity: 40AH
Internal resistance: 0.7mΩ
End-of-discharge Voltage: 2.8v
End-of-charge Voltage: 4.2v
Fast Charging current: 0.5C
Max Continuous Discharge current: 3C
Cycle Life: 2800
Grade: B
Condition: Brand new