Hyundai i40 2015, Owner'S Manual

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7 31
Maintenance
Battery recharging
Your vehicle has a maintenance-free,
calcium-based battery.
• If the battery becomes discharged in a
short time (because, for example, the
headlights or interior lights were left on
whilst the vehicle was not in use),
recharge it by slow charging (trickle)
for 10 hours.
• If the battery gradually discharges
because of high electric load whilst the
vehicle is being used, recharge it at 20-
30A for two hours.
WARNING
- Recharging
battery
When recharging the battery,
observe the following precautions:
• The battery must be removed
from the vehicle and placed in an
area with good ventilation.
• Do not allow cigarettes, sparks,
or flame near the battery.
• Watch the battery during charg-
ing, and stop or reduce the charg-
ing rate if the battery cells begin
gassing (boiling) violently or if
the temperature of the electrolyte
of any cell exceeds 49°C (120°F).
• Wear eye protection when check-
ing the battery during charging.
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• Disconnect the battery charger in
the following order.
1. Turn off the battery charger
main switch.
2. Unhook the negative clamp
from the negative battery ter-
minal.
3. Unhook the positive clamp
from the positive battery termi-
nal.
• Before performing maintenance
or recharging the battery, turn off
all accessories and stop the
engine.
• The negative battery cable must
be removed first and installed
last when the battery is discon-
nected.