60
8
8.5. The Temperature of the Lithium Ion Battery (ESB1)
during Charging
Charge the battery in an environment with a temperature of 10 to 25°C, (50 to 77°F)
• To protect the battery, if the internal temperature of the battery is under 0°C (32°F) or over 40°C (104
°F), charging does not start. Instead, it enters a standby mode. During this time, the charge lamp
(green) flashes.
While in standby mode, when the battery reaches an appropriate temperature, the charge lamp
will change from a flashing to an “on” state, and charging will start automatically. (The length of the
standby time varies with the conditions.)
• The battery temperature increases during charging. However, if the battery temperature rises above
45°C (113°F) the power for the charger will turn off to protect the battery.
Since charging has not ended, it is necessary to charge again after the battery temperature has
decreased.
Charging a battery immediately after travel, or charging a new battery is likely to cause its
temperature to increase, which increases the likelihood of the charger stopping charging before
completion.
• The heat generated during charging will be radiated from the surface of the charger. While charging,
be sure to leave sufficient space around the charger for radiating the heat.
8.6. Charger Indicator Lamps
(1)
Lit green
Indicates normal charging.
The charge lamp will turn off after charging has
completed.
(2)
Flashing green
Charge standby
• When the temperature of the battery is not within the chargeable range (0 to 40°C, 50 to 77°F),
the charger enters a standby state and the charge lamp starts flashing in green.
• While on standby, once the battery temperature falls back within chargeable range, the charge
lamp lights up in steady green and the charger starts charging automatically. However, if
charging is on standby for a long time, the charging process is aborted. When this happens, the
charge lamp flashes rapidly in green.
(3) Steady or flashing red
The charger has detected a problem in the charger or the battery, and is unable to charge. Stop
charging by disconnecting the charging plug and the power plug. Check the battery, charger, cord
connection for any problem, and then try charging again.
If the charge lamp lights or flashes in red, an equipment failure may have occurred. Stop charging
by disconnecting the charging plug and the power plug, and have the equipment inspected by a
dealer.
r e
