Gilera Nexus 500, Workshop Manual, Page: 70 / 406

3) Constant current battery charge mode
-Charge current equal to 1/10 of the nominal capacity of the battery
- Charge time: 5 h
Specific tooling
020333Y Single battery charger
020334Y Multiple battery charger
Cleaning the battery
The battery should always be kept clean, especially on its top side, and the terminals should be coated
with Vaseline.
CAUTION
NEVER USE FUSES WITH A CAPACITY HIGHER THAN THE RECOMMENDED CAPACITY. USING
A FUSE OF UNSUITABLE RATING MAY SERIOUSLY DAMAGE THE VEHICLE OR EVEN CAUSE
A FIRE.
CAUTION
CHARGE THE BATTERY BEFORE USE TO ENSURE OPTIMUM PERFORMANCE. FAILURE TO
CHARGE THE BATTERY ADEQUATELY BEFORE BEING PUT INTO OPERATION WILL LEAD TO
A PREMATURE FAILURE OF THE BATTERY.
If the scooter is not used for a given time (1 month or more) it will be necessary to periodically recharge
the battery.
The battery runs down completely in the course of three months. If it is necessary to refit the battery in
the vehicle, be careful not to reverse the connections, remembering that the ground wire ( black ) marked
(-) must be connected to the negative clamp while the other two red wires marked (+) must be con-
nected to the clamp marked with the + positive sign.
Dry-charge battery
- Remove the short closed tube and the caps, then
pour sulphuric acid into the cells using the type
specified for batteries with a specific gravity of
1.26, corresponding to 30 Bé at a minimum tem-
perature of 15°C until the upper level is reached.
- Allow to stand for at least 2 hours, then top up the
level with sulphuric acid.
- Within 24 hours, recharge using the special bat-
tery charger (single) or (multiple) at an intensity of
about 1/10 of the battery nominal capacity and until
the acid gravity is about 1.27, corresponding to 31
Bé and such values become steady.
- After charging, top up the acid (adding distilled
water ). Close and clean carefully.
Electrical system
Nexus 500
ELE SYS - 20