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Nexus 500
Electrical system
2 Inspect visually
3 The float must be freed
Checking the electrolyte level
The electrolyte level must be checked frequently and must reach the upper level. Only use distilled
water, to restore this level. If it is necessary to add water too frequently, check the vehicle's electrical
system: the battery works overcharged and is subject to quick wear.
Charging status check
After topping-up the electrolyte level, check its density using special density gauge.
When the battery is charged, you should detect a density of 30 to 32 Bé corresponding to a specific
weight of 1.26 to 1.28 at a temperature of no lower than 15° C.
A density reading of less than 20° Bé indicates that the battery is completely flat and it must therefore
be recharged.
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. When refitting the battery onto the
scooter pay attention not to invert the cables, bearing in mind that the earth (black) wire marked with
a (-) must be connected to the negative terminal whilst the other two red wires, marked with a (+) must
be attached to the positive, + terminal.
Battery recharge
WARNING
BEFORE RECHARGING THE BATTERY, REMOVE THE PLUGS OF EACH CELL. KEEP SPARKS
AND NAKED FLAMES AWAY FROM THE BATTERY WHILE RECHARGING.
Remove the battery from the vehicle removing the negative clamp first.
Normal bench charging must be performed using the special battery charger (single) or (multiple), set-
ting the battery charge selector to the type of battery that requires recharging (i.e., at a current equal
to 1/10 of the battery rated capacity). Connections to the power supply source must be implemented
by connecting corresponding poles (+ to + and - to - ).
Specific tooling
020333Y Single battery charger
020334Y Multiple battery charger
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
ORDINARY AND DRINKING WATER CONTAINS MINERAL SALTS THAT ARE HARMFUL FOR
THE BATTERY. FOR THIS REASON, YOU MUST ONLY USE DISTILLED WATER.
CAUTION
ELE SYS - 65
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