Total Station NPL-322 Instruction Manual 11
Preparation 2
• By design Li-Ion batteries should not be charged above 40 °C-45 °C so a
blinking charge light may mean the batteries are too hot for charging. Charging
will resume after the batteries cool down. The charging time will be longer due
to the batteries cool down when charging batteries above 40 °C-45 °C.
• If the charge indicator(s) are blinking and the batteries feel cool, it may indicate
a problem with the battery or the charger. If the charge light is still blinking
after trying several batteries which are not warm, there is a problem with the
unit or the batteries themselves.
Note – When inserting a battery into the battery slot, follow the correct way described
below.
Inserting a battery in the battery slot
1. Insert a battery into the battery insertion
guide side of the battery slot. The
battery insertion guide is opposite side
of the charging contacts.
2. Aligning the charging contacts of the
battery and battery charger, press the
battery down into the slot.
3. Assure that the adjacent charge indicator will illuminate yellow.
Charge indicator and Calibration indicator
For details of the calibration, refer to the next item Conditioning /
calibrating a battery, page 12.
Yellow light illuminates. Now in charging
Green light illuminates. Completion of charging
Blue light blinks. Now in calibration
Blue light illuminates. Completion of calibration
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