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Appropriate charging environments
For safe and efficient charging, use the battery charger in a location that is:
• Flat and stable (when on the bicycle)
• Free of rain or moisture
• Out of direct sunlight
• Well-ventilated and dry
• Not accessible to children or pets
• Temperature between 15–25 °C
Inappropriate charging environments and solutions.
The hot and cold environments described below can cause charging to enter standby or suspension 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”. 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 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 0 °C lower. 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 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).
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