KTM 390 DUKE 2017, Owner'S Manual

Page: 175 / 255

15 ELECTRICAL SYSTEM
173
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 battery's service life.
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 from starting the vehicle repeatedly, the battery must be charged immediately.
If the battery is left in a discharged state for an extended period, it will become over-discharged and sul-
fate, destroying the battery.
The battery is maintenance-free. The acid level does not have to be checked.
Preparatory work
–
Switch off all power consumers and switch off the engine.
–
Remove the passenger seat. ( p. 121)
–
Remove the front rider's seat. ( p. 122)
–
Disconnect the negative cable of the battery to avoid damage
to the onboard electronics.