2-10
Checks and Preparation
Charging the Battery
Expected time required for charging:
• GL400/350: 12 hours
• Battery charger: 10 hours
Using the GL400/350 for Charging
The battery pack is charged by mounting it in the GL400/350, and supplying it with AC power. The
battery cannot be charged, however, while the GL400/350 is operating.
(1) Mount the battery pack in the GL400/350 (see the previous section for the mounting
procedure).
(2) Turn on the power to the GL400/350. (Please see Section 2.7, "Connecting the Power Cable
and Turning on the Power").
(3) Turn the power switch off to start the charging operation. The battery charging LED lights. If
the power switch is turned on, the charging operation is aborted, the battery charging LED
goes out, and the power LED lights.
Power LED
Battery charging LED
CHECKPOINT
• If battery charging is attempted immediately after the GL400/350 has been used continuously,
charging may not be performed. However, charging will start automatically as soon as the GL400/350
has cooled down.
Charging temperature: 15 to 35°C
• If input is being made directly from the DC power supply instead of the AC adapter, the DC voltage
must be at least 16V.
Using a Battery Charger for Charging
Use the optional battery charger.
(1) Mount the battery pack in the battery charger.
(2) Plug the battery charger's AC cable into the mains power outlet.
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