Installing/Removing The Battery - Topcon DL-501 Instruction Manual

5. USING THE BATTERY

• Slots 1 and 2:
The charger starts charging the battery mounted first. If you place two batteries in the charger, the
battery in slot 1 is charged first, and then the battery in slot 2. ( step 2)
• Charging lamp:
The charging lamp is off when the charger is outside the charging temperature range or when the
battery is mounted incorrectly. If the lamp is still off after the charger falls within its charging
temperature range and the battery is mounted again, contact your local dealer. (steps 2 and 3)
• Charging time per battery (at 25°C):
BDC58: about 4 hours
BDC70: about 5.5 hours
(Charging can take longer than the times stated above when temperatures are either especially
high or low.)
5.2

Installing/Removing the Battery

Mount the charged battery.
BDC46C and battery adapter SB178 are optional accessories.

• Before removing the battery, turn off the power to the instrument.Settings, and file and folder data
may be lost if the battery is removed while the power is switched on.
• When installing/removing the battery, make sure that moisture or dust particles do not come in
contact with the inside of the instrument.
• Remove batteries from the instrument or charger before putting into storage.
• Store the battery in a dry room where the temperature is within the following ranges
Storage period
1 week or less
1 week to 1 month
1 month to 6 months
6 months to 1 year
For long-term storage, the battery should be charged at least once every six months.
• The BDC58/70 generates power using a chemical reaction and as a result has a limited lifetime.
Even when in storage and not used for long periods, battery capacity deteriorates with the passage
of time. This may result in the operating time of the battery shortening despite having been charged
correctly. In this event, a new battery is required.
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Temperature range
-20 to 50°C
-20 to 45°C
-20 to 40°C
-20 to 35°C