Yamaha PW-SE Original Instructions Manual page 24

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Inappropriate charging environments and solutions
The hot and cold environments described below can cause charging to enter standby or suspen-
sion without fully charging the battery.
• Summertime charging standby/suspension
If charging in a location receiving direct summer sunlight or immediately after riding, the battery
charger might enter charging standby (all four battery capacity indicator lamps flash slowly). See
"Reading the charging status for battery pack". This is to automatically stop charging in order to
protect the battery from exceeding the specified temperature while charging. You can avoid
charging suspension by starting to charge with the battery cold or at a room temperature of
59–77 °F (15–25 °C). If charging suspension occurs, move the battery charger to a cool location
to reduce the charging standby time.
• Wintertime charging standby/suspension
Charging standby will occur if the temperature is less than 32 °F (0 °C). If charging is started
and the temperature drops below this level due to late-night cooling or other factors, charging is
suspended and standby mode is entered to protect the battery. In such cases, restart charging
at an indoor location with a temperature of 59–77 °F (15–25 °C).
• Noise on televisions/radios/computers
Charging next to televisions, radios, or similar appliances might cause static, flickering images,
and other interference. If this occurs, recharge in a location further away from the television or
radio (such as in another room).
WARNING
If a charging fault occurs during charging, remove the power plug of the battery charger
from the socket and wait for the battery pack/battery charger to cool.
Charging connector
Charging the battery pack mounted on the
bicycle (Down tube type)
1. Connect the power plug of the battery charger to a
household power outlet.
2. Remove the cap of charging inlet from the charging
connector on the battery pack, and connect it to the
charging plug on the battery charger.
Cap
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