VESPA GTV 250 i.e. 2008 Service Station Manual page 79

Vespa GTV 250 i.e.
Sealed battery
If the vehicle is provided with a sealed battery, the only maintenance required is the check of its charge
and recharging, if necessary.
These operations should be carried out before delivering the vehicle, and on a six-month basis while
the vehicle is stored in open circuit.
Besides upon pre-delivery it is therefore necessary to check the battery charge and recharge it, if re-
quired, before storing the vehicle and afterwards every six months.
INSTRUCTIONS FOR BATTERY REFRESH AFTER OPEN CIRCUIT STORAGE
1) Voltage check
Before installing the battery on the vehicle, check the open circuit voltage with a standard tester.
- If voltage exceeds 12.60 V, the battery can be installed without any renewal recharge.
- If voltage is below 12.60 V, a renewal recharge is required as explained in 2).
2) Constant voltage battery charge mode
- Constant voltage charge equal to 14.40 - 14.70V
- Initial charge voltage equal to 0.3 - 0.5 for Nominal capacity
- Charge time:
10 - 12 h recommended
Minimum 6 h
Maximum 24 h
3) Constant current battery charge mode
Electrical system
ELE SYS - 79