Yamaha Batavus Guide D'utilisation page 70

Symptom
Both side lamps
are flashing
simultaneously.
The battery char-
ger emits abnormal
noises, foul odors or
smoke.
The battery charger
becomes hot.
After charging, all of
the battery capacity
indicator lamps do not
light up when the bat-
tery capacity indicator
button
is pressed.
After disconnecting
the charging plug on
the battery charger
from the battery pack,
the battery capacity
indicator lamps
continue to light.
69
Check
There is a contact fault in the
contact terminals.
Isn't the charging connector on
the battery pack wet?
It is normal for the battery char-
ger to become somewhat warm
during charging.
Has the charger plug been
unplugged or the battery pack
removed during charging?
Did you start charging with the
battery pack at a high
temperature, such as
immediately after use?
Isn't the charging connector on
the battery pack wet?
Action
Remove the battery pack from the battery
charger, mount the battery on the bicycle
and press the power switch of display
unit. When the charging plug reconnected
into the battery pack, if lamps still flash
simultaneously, there might be a fault in the
battery charger.
Clean the charging connector and charging
plug, and dry them. After that, connect the
charging plug to the charging connector.
The battery pack protection feature has been
activated and the system cannot be used.
Replace the battery pack at an authorized
dealer as soon as possible.
Unplug the charger plug and immediately
cease operation.
If the battery charger is too hot to be touched
by hand, unplug the charger plug, wait for it
to cool, and consult an authorized dealer.
Charge the battery pack again.
Move to a location where the battery
temperature can reach the range where
charging is possible (0-30 ℃), and then start
charging again.
Clean the charging connector and charging
plug, and dry them.