Kenwood TH-31A User Manual
Page 5
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3. Battery notes
3.1.
Recharging the battery pack
• Plug the BC-3 into the AC line outlet and interconnect the adapter to
the battery pack PB-21. At this time, be sure the polarities. While re
charging is correctly in progress, the red LED on the BC-3 lights.
However, the LED remains lits while the BC-3 is still connected to the
AC line outlet. Therefore, unplug the BC-3 after 8 hours of recharging.
Notes:
1.
Recharging should be done within ambient temperature between
10°C and 40°C. Recharging performed out of this range may not
fully charge the battery pack.
2.
Excessive charging, if happened, the battery performance and its
life may lessen.
• Align the grooves in the bat
tery case and unit and slide
in the battery case to the
right. Slide to the left to re
move the battery case.
3.2. Operation time with AAA batteries
The operation time with a repeated 1 minute TX and 3 minute RX cy
cle is approximately 40 minutes with manganese batteries and about
90 minutes with alkaline manganese batteries.
To
communicate
over
a
short
distance,
set
the
Hi/Low
switch
to
I LOW I to conserve power and thus extend operation time. When the
batteries are exhausted and the [ON AIR| indicator lights dimly, replace
the batteries with new ones.
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