Radio Shack 20-404 - Manual (Page 9)

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• Always turn off the scanner when not using it.
• Remove old or weak batteries. If you will not use
the scanner with batteries for a month, remove the
batteries. Batteries can leak chemicals that destroy
electronic circuits.
• In the event that a battery leaks, shows
transformation, discoloration, or abnormal
generation of heat, stop operation and replace the
batteries.
• Always dispose of old batteries promptly and
properly. Do not bury or burn them.
Charging Rechargeable Batteries
1. Install rechargeable batteries using the yellow
battery holder.
2. Connect an external power source to the PWR DC
9V jack using a 9V 400mA AC/DC adapter (not
supplied).
The average charging times are listed
below.
Battery Current Charge Time
Ni-MH 1600 mAh 16 hours
Ni-Cd 600 mAh 6 hours
Ni-Cd 850 mAh 8 hours
b
Recharging Notes:
• Do not overcharge batteries. Overcharging
shortens battery life.
• Using the scanner while charging will increase
charge time.
• Rechargeable batteries last longer and deliver more
power if you let them fully discharge once a month.
To do this, use the scanner until
B appears.
Recycle Rechargeable Batteries
Placing rechargeable batteries in the trash can
be harmful to the environment. Instead, recycle
old rechargeable batteries at your local RadioShack
store free of charge. RadioShack participates in the
RBRC© battery recycling program, and is committed
to preserving the environment and conserving natural
resources. Call 1-800-THE-SHACK
(1-800-843-7422) for more information.
Using External Power
You can power your scanner using a
power source that supplies 9V DC and
delivers at least 400mA. Its center tip
must be set to positive and its plug
must fit the scanner’s PWR DC 9V jack.
To use an external power source:
1. Connect the adapter (not supplied)
to the scanner’s PWR DC 9V jack.
2. Plug the adapter into the power
source (standard AC power or your
vehicle’s power port).
. To disconnect, unplug the adapter from the power
source first.
If you use an external power source for regular
operation, install alkaline batteries for emergencies.
Rechargeable batteries will self-discharge, even when
not used, and could have no usable power.
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Notes:
• Connecting an AC or DC adapter to the scanner
disconnects internal batteries when you use the
black non-rechargeable battery holder, but it does
not disconnect internal batteries when you use the
yellow rechargeable battery holder.
• If the scanner stops working properly after
connecting it to power, try resetting it (see
“Initializing the Scanner” on page 33).
• If you are powering from your vehicle’s power port
and your vehicle’s engine is running, you might hear
electrical noise from the engine while scanning.
This is normal.
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Caution: You must use a Class 2 power source
that supplies 9V DC and delivers at least 400mA. Its
center tip must be set to positive and its plug must fit
the scanner’s PWR DC 9V jack. Using an adapter that
does not meet these specifications could damage the
scanner or the adapter.