KTM 125 Duke 2018 Owner's Manual page 168

15 ELECTRICAL SYSTEM
166
Info
Even when there is no load on the battery, it discharges steadily.
The charging level and the method of charging are very important for the service life of the battery.
Rapid recharging with a high charging current shortens the service life of the battery.
If the charging current, charging voltage, or charging time is exceeded, electrolyte escapes through the
safety valves. This reduces the battery capacity.
If the battery is depleted by repeated starting, the battery must be charged immediately.
If the battery is left in a discharged state for an extended period, over-discharge and sulfating occurs,
destroying the battery.
The battery is maintenance-free. The acid level does not have to be checked.
Preparatory work
–
Switch off the ignition by turning the ignition key to the posi-
tion .
–
Remove the passenger seat. (
–
Remove the front rider's seat. (
–
Disconnect the negative cable of the battery to avoid damage
to the onboard electronics.
p. 115)
p. 116)