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8.5. Refresh Charging the Nickel Metal Hydride Battery (JWB2)
A refresh charging is required on a nickel metal hydride battery to eliminate the memory eect.
When the battery is inserted to the charger, if the refresh lamp (orange) on the charger ashes, press the
refresh switch to perform a refresh charge cycle. (The refresh lamp ashes after every 20 to 30 charge cy-
cles. If the refresh lamp does not ash, it is not necessary to perform a refresh charge cycle.)
(1) While the refresh lamp (orange) is flashing, press
the refresh switch.
* The refresh lamp (orange) ashes only when re-
fresh charging is needed.
Refresh lamp
(orange)
(2) The refresh lamp (orange) changes from a ashing
to an “on” state, and the refresh charging starts.
In a refresh charging process, after all remaining electricity has been discharged, the refresh lamp (orange)
turns o. The charge lamp (green) comes on and a normal charging process begins. The time it takes
from the start of refresh charging to the completion of normal charging is 3 – 19 hours.
• If the temperature of the battery rises during a refresh charge, the charge lamp (green) may ash and
the charging process may pause.
When the battery reaches an appropriate temperature, the charge lamp will change from a ashing to
an “on” state and charging will start automatically.
• If you perform a refresh recharge when the internal temperature of the battery is under 32°F (0°C) or
over 104°F (40°C), it may enter a standby mode as it goes into normal charging after discharging the
remaining electricity.
• Even if you fail to press the refresh switch, you can retry by momentarily removing the battery from the
charger, and then reinserting the battery to see the refresh charging alert.
• If you do not press the refresh switch while the refresh lamp (orange) is ashing, the ashing refresh
lamp will turn o after 1 minute. Then the charge lamp comes on and a normal charging process be-
gins. In this case, the refresh lamp ashes again the next time you charge the battery.
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