Derbi boulevard 125 4t, Workshop Manual, Page: 77 / 182

Commissioning dry-charged batteries :
1) - 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 Be at a minimum tem-
perature of 15°C until the upper level is reached.
2) - Leave to rest for at least 2 hours; then, restore
the level with sulphuric acid.
3) - Within the following 24 hours, recharge using
the specific battery charger (single) or (multiple) at
a density of about 1/10 of the battery nominal ca-
pacity until fully charged; check that the acid den-
sity is about 27, corresponding to 31 Be, and that
these values are stabilised.
4) - Once the charge is over, level the acid (by
adding
distilled water
). Close and clean carefully.
5) Once the above operations have been per-
formed, install the battery on the vehicle ensuring
that it is wired up properly.
1
Hold the vertical tube
2
Look at the level
3
The float must be freed
WARNING
- ONCE THE BATTERY HAS BEEN INSTALLED
IN THE VEHICLE IT IS NECESSARY TO RE-
PLACE THE SHORT TUBE (WITH CLOSED
END) NEAR THE + POSITIVE TERMINAL WITH
THE CORRESPONDING LONG TUBE (WITH
OPEN END), THAT YOU FIND FITTED TO THE
VEHICLE, TO ENSURE THAT THE GASES
THAT FORM CAN ESCAPE PROPERLY.
Specific tooling
020333Y Single battery charger
020334Y Multiple battery charger
Battery maintenance
The battery is an electrical device which requires careful monitoring and careful maintenance. The
maintenance rules are:
1) Electrolyte level check
Electrical system
ELE SYS - 77