Yamaha PW45 Original Instructions Manual page 31

BATTERY PACK AND CHARGING PROCEDURE
TIP
For example, even if normal charging is started, if the battery temperature or the surrounding tem-
perature is too high or too low, the charging may be extended or charging may be stopped without
the battery being charged sufficiently in order to protect the battery.
Charging
start
Charging time*
Charging
standby (Not including standby time)
S-Pede Kit Manual (2016).indd 28
Charging time guidelines
Although charging time varies depending on residual bat-
Charging
finish
tery capacity and external temperature, if the battery has
been exhausted, it generally takes approximately 3.5
hours until one battery capacity indicator lamp flashes.
If the battery pack enters standby mode while charging,
charging time will increase by an equal amount.
* If charging after a long period of disuse, the charging
time will be lengthened depending on the battery status.
However, note that if the battery capacity indicator lamps
do not flash in fault pattern (See "Reading the charging
status"), there is no malfunction.
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