niu N-GT, Service Manual

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V1.0.0 53
Lithium battery/charger
Overview
The charger will be generate heat during charging. It should be subject to good ventilation and
radiation.
The battery and charger must not be covered.
They must not be close to flammable or explosive objects in charging to avoid the explosion or fire
that may cause personal injuries.
There is high-voltage current in the charger during charging. The charger is strictly prohibited from
being opened in order to prevent electric shock.
The charging should be made indoor and should not be made at an open site in order to prevent the
electric shorting or firing due to rain and other factors.
The charging process is strictly prohibited from being made in a rainy, exposure or high-temperature
environment or close to fire sources.
Only original charger and a stable 110-240V AC power supply should be used in charging.
The polarity of the charger output connector must be consistent with the battery output connector,
otherwise the charger and battery will be damaged.
Note
The Power Lock and Main Switch should be turned off before removal of electronic components.
The battery used for this model is a lithium battery.
Remove the battery from scooter storage for than a week, Charge the battery to approximately 50%
of its capacity and store it at a room temperature.
Perform periodical charging of the battery every month. The long-term storage of battery in below
20% of the electricity is strictly prohibited.
The battery should be fully charged for use after long-term storage.
The original battery for this model must be charged with the original charger that accompanies with
the scooter (the scooter charging with a non-original charger will cause irrecoverable damages to the
battery). Charging with a non-original charger may lead to the circuit or battery failure.
Battery charging is strictly prohibited from being made immediately after scooter stop. The charging
should be made when the battery surface has been naturally cooled down (it is recommended to
make charging after 30 minutes).
Stop charging immediately if the battery has not been fully charged for more than 24 hours and the
red lamp does not turn to green, and then contact the after-sale service for inspection of the charger
and battery.
Specification
Item Specifications
Battery
Type lithium battery pack
Rated voltage 60V
Rated capacity 2*35Ah
Fast Charger
Output voltage 35-84V DC
Max Output current 12A