Bird Technologies AT-500-Manual - Manual (Page 33)

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Chapter 3 Installation
The following paragraphs will explain how to connect
the Bird Antenna Tester for various operations. Refer to
the component description diagram on page 2 if needed.
Power Supply
The AT-500 can use an external power source. Using
the ac adapter or the 12V cigarette lighter adapter will
also charge the battery. Using the ac adapter, charge
time is about 8 hours. Using the cigarette lighter
adapter, charge time will depend on the car battery
charge. Battery life is 2 hours continuous operation,
minimum, with the backlight on. “Lo Batt” is dis-
played when the batteries require charging.
Note:
This unit is shipped with the batter-
ies not charged. Charge batteries for at least 8
hours before use.
Note:
For optimum battery life, only
charge the batteries after the low battery indi-
cator is displayed.
CAUTION
Follow guidelines for battery charging.
Avoid constant charging of batteries for long periods of
time. Overcharging can result in reduced battery
efficiency, service life, and possible permanent damage.
CAUTION
Only use the AC adapter provided with the AT. Do
not use the adapter with the batteries removed.