Radio Shack 23-410 User manual

Cat. No. 23-410
OWNER’S MANUAL
Please read before using this equipment.
/
Ni-Cd and Nickel Metal H
y
dride
Rechar
g
eable Batter
y
Pulse Char
g
er
23-410.fm Page 1 Friday, August 6, 1999 2:54 PM

2
FEATURES
Your RadioShack Ni-Cd and Nickel Met-
al Hydride Rechargeable Battery Pulse
Charger lets you quickly charge five dif-
ferent sizes of standard nickel-cadmium
(Ni-Cd) or nickel-metal hydride (Ni-MH)
batteries.
The charger’s four battery chambers let
you charge up to four batteries of the
same size and type — AAA, AA, C, or D
— at the same time, while the connector
inside the charger lets you also charge
one 9V battery.
Your charger has these features:
Intelli
g
ent Dischar
g
e S
y
stem (IDS) —
automatically discharges and conditions
cells to a suitable level before recharg-
ing, to ensure maximum charging ca-
pacity.
Microprocessor Controlled Char
g
in
g
— automatically detects the battery type
and monitors the charging process to
ensure the right amount of current is
supplied.
Soft-Start Char
g
in
g
— gradually in-
creases charging current when batteries
start charging to avoid heat build-up that
can reduce battery life.
Fuzz
y
Lo
g
ic Intelli
g
ent Char
g
in
g
Cur-
rent Control — automatically senses
when a battery is fully charged and
switches first to top-off, then trickle-
charge, to prevent overcharging.
Red LED Indicator — shows 9V battery
charging status.
Liquid Cr
y
stal Displa
y
— shows AAA,
AA, C, or D-size battery charging status.
This symbol is intended to alert you to
the presence of uninsulated danger-
ous voltage within the product’s enclo-
sure that might be of sufficient
magnitude to constitute a risk of elec-
tric shock. Do not open the product’s
case.
This symbol is intended to inform you
that important operating and mainte-
nance instructions are included in the
literature accompanying this product.
CAUTION
RISK OF ELECTRIC SHOCK.
DO NOT OPEN.
CAUTION: TO REDUCE THE RISK OF
ELECTRIC SHOCK, DO NOT REMOVE
COVER OR BACK. NO USER-SERVICE-
ABLE PARTS INSIDE. REFER SERVIC-
ING TO QUALIFIED PERSONNEL.
WARNING: To reduce the risk of
fire or shock hazard, do not ex-
pose this product to rain or mois-
ture.
!
!
©1998 Tandy Corporation.
All Rights Reserved.
RadioShack is a registered trademark used by Tandy Corporation.
23-410.fm Page 2 Friday, August 6, 1999 2:54 PM

3
SAFETY INSTRUCTIONS
SAVE THESE
INSTRUCTIONS
This manual contains important safety
and operating instructions for your
charger.
Before you use the battery charger, read
all instructions and cautionary markings
on the charger, the batteries to be
charged, and the products that use the
batteries.
Warnin
g
s:
• To reduce the risk of injury, charge
only nickel-cadmium or nickel-metal
hydride batteries with this charger.
Other types of batteries might burst,
causing personal injury and damage
to the charger.
• To prevent damage to your charger
and risk of electric shock, always
unplug the AC adapter from the AC
outlet before you plug it into or
unplug it from the charger.
• Do not expose the charger to rain or
excessive moisture.
• Use of any attachments not
intended for use with this battery
charger can result in a risk of fire,
electric shock, or personal injury.
• Never operate the charger if it has
received a sharp blow or been
dropped or damaged in any way.
Have it repaired by qualified service
personnel.
• Do not disassemble the charger.
Have it serviced or repaired by qual-
ified service personnel only. Incor-
rect assembly can result in a risk of
electric shock or fire.
• To reduce the risk of electric shock,
unplug the charger from the outlet
before attempting any maintenance
or cleaning.
• To reduce the risk of damage to the
AC adapter, disconnect the charger
by pulling the plug rather than the
cord.
• Do not use an extension cord. Its
use could result in fire or electric
shock.
• Do not operate the charger if the AC
adapter is damaged. Have the
charger repaired by qualified service
personnel.
• Never alter the provided AC
adapter. If it does not fit in the AC
outlet, have a qualified technician
install the proper outlet. Improper
connection can result in an electric
shock.
• Never use the charger as a DC
power source for any electrical
equipment.
23-410.fm Page 3 Friday, August 6, 1999 2:54 PM

4
OPERATION
CHARGING HINTS
To see what is happening while your
charger is charging AAA, AA, C, or D-
size batteries, watch for these symbols
to appear on the charger’s display.
Cautions:
• Remove all batteries from the
charger at least 3 seconds before
connecting the charger to AC power.
Failure to do so might cause the
charger to lock up during the power
up cycle. If this happens, disconnect
power, remove the batteries, then
reconnect power.
• All batteries loaded into the
charger’s chambers must be of the
same size and type.
• Do not try to charge a battery of a
size other than those listed in this
manual. Doing so could damage the
batteries and charger.
• Before unplugging the adapter from
the AC outlet, remove the batteries
to prevent leakage that will damage
the charger.
Load Reminds you to
load batteries.
Numeric Di
g
its show bat-
tery volta
g
e.
Bad Battery If a battery is bad
or should not be
char
g
ed, both
and appear.
Power Appears durin
g
trickle char
g
in
g
when batteries are
almost fully
char
g
ed.
Intelligent
Discharge
System (IDS)
Durin
g
battery dis-
char
g
e,
appears steadily
with blinkin
g
.
Soft-Start Durin
g
soft-start,
appears
steadily and
blinks.
FastCharge Durin
g
fast char
g
-
in
g
, appears
steadily and
blinks.
Top-off/
Trickle Durin
g
top-off or
trickle char
g
in
g
,
appears
steadily with
and alternately
blinkin
g
.
Amount of
Charge The bars illus-
trate the char
g
in
g
process and scan
inside the amount-
of-char
g
e symbol
(except durin
g
top-
off/trickle char
g
-
in
g
). The more
bars that appear
while a battery is
bein
g
analyzed,the
more char
g
e there
is in the battery.
23-410.fm Page 4 Friday, August 6, 1999 2:54 PM

5
CONNECTING POWER
Before connecting power, remove all
batteries from the charger. Insert the
supplied adapter’s barrel plug into the
DC 12V 500 mA jack on the back of the
charger. Then plug the other end of the
adapter into a standard AC outlet. 00
appears and flashes on the display.
OPENING THE COVER
To open the cover, press the tab below
the cover and lift up the cover.
CHECKING 1.2V
BATTERIES
You can use this charger to check the
charge in a 1.2V Ni-Cd/Ni-MH battery.
(You cannot use this function to check
the voltage of a 9V battery.)
1. With the charger connected to AC
power, place a single battery into
any chamber. Do not close the
cover yet (this starts the charging
process).
2. Press ANALYZE.
The charger dis-
plays the estimated
charge level, with
the amount-of-
charge symbol and
the numeric charac-
ters showing the
voltage.
Notes:
• The amount-of-charge shown is
based on the normal discharging
curve of a fully charged battery. It
might be inaccurate if the battery
being checked was not fully
charged before it was last used.
23-410.fm Page 5 Friday, August 6, 1999 2:54 PM