Charging The 12-V Battery - KTM 390 DUKE 2022 Owner's Manual

15.4

Charging the 12-V battery

Warning
Risk of injury Battery acid and battery gases cause serious chemical burns.
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Keep 12 V batteries out of the reach of children.
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Wear suitable protective clothing and safety glasses.
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Avoid contact with battery acid and battery gases.
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Keep sparks or open flames away from the 12 V battery.
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Only charge 12 V batteries in well-ventilated rooms.
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Rinse the affected area immediately with plenty of water in the event of contact with the skin.
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Rinse eyes with water for at least 15 minutes and consult a doctor immediately if battery acid and
battery gases get into the eyes.
Note
Environmental hazard 12 V batteries contain environmentally hazardous materials.
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Do not dispose of 12 V batteries as household waste.
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Dispose of 12 V batteries at a collection point for used batteries.
Note
Environmental hazard Hazardous substances cause environmental damage.
–
Dispose of oils, grease, filters, fuel, cleaning agents, brake fluid, etc., correctly and in compliance with
the applicable regulations.
Info
Even when there is no load on the 12-V battery, it discharges steadily each day.
The charging level and the method of charging are very important for the service life of the 12-V 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 capacity of the 12-V battery.
If the 12-V battery is depleted by repeated starting, the 12-V battery must be charged immediately.
If the 12-V battery is left in a discharged state for an extended period, it will become deeply discharged
and sulfating occurs, destroying the battery.
The 12-V battery is maintenance-free. The acid level does not have to be checked.
Preparatory work
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Remove the passenger seat. (
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Remove the front rider's seat. (
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Disconnect the negative cable of the 12-V battery to avoid
damage to the onboard electronics.
Main work
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Connect a battery charger to the 12-V battery. Connect the
battery charger to the mains connection.
Battery charger (58429074200)
It is impossible to overcharge the 12‑V battery using this bat-
tery charger.
This battery charger is not suitable for lithium-ion batteries.
Info
V02564-10
Charge the 12-V battery to a maximum of 10 % of the
capacity specified on the battery housing.
ELECTRICAL SYSTEM 15
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