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5. USING THE BATTERY
• Charging time:
BT-79Q: about 13 hours (at 20°C)
(Charging can take longer than the times stated above when temperatures are either especially high or low.)
• Charging lamp:
PROCEDURE Installing the battery
1. Insert the battery pack into the battery holder.
2. Insert the battery holder. Tighten the battery holder knob
to “LOCK” side.
PROCEDURE Removing the battery
1. Remove the battery holder by turning battery holder knob
to "OPEN" side.
2. Grasp the specified place on the battery holder, which is
shown on the right, and remove the battery pack.
• It is possible to remove the battery pack from the battery
holder and use the dry batteries.
LED Description
Red lamp lit On charge
Off Fully charged
Red lamp blinking
slowly
Ni-MH battery pack protection feature is working automatically.
Let the battery pack fall within its designated charging temperature range (10 to 40°C),
unplug the AC/DC converter from the battery pack and then check the LED status. Solid
red LED indicates charging has started again. Slow blinking red LED indicates the Ni-MH
battery is still out of the charging temperature range. Wait for a while, unplug the AC/DC
converter and then check the LED again.
The instrument has a protection feature which works when the batteries are under a high
or low temperature state. In such a case, charging will stop automatically to protect nickel
hydride batteries.
Red lamp blinking
quickly
The battery is not charged properly. Please contact your local dealer.
5.2 Installing/Removing the Battery
Battery holder (DB-82)
Battery pack (BT-79Q)
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