Radio Shack Battery Charger 23 410 User Guide

23-410.fm Page 1 Friday, August 6, 1999 2:54 PM  
Cat. No. 23-410  
OWNER’S MANUAL  
Please read before using this equipment.  
Ni-Cd and Nickel Metal Hydride  
/
Rechargeable Battery  
Pulse Charger  
 
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SAFETY INSTRUCTIONS  
• 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.  
SAVE THESE  
INSTRUCTIONS  
This manual contains important safety  
and operating instructions for your  
charger.  
To reduce the risk of electric shock,  
unplug the charger from the outlet  
before attempting any maintenance  
or cleaning.  
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.  
To reduce the risk of damage to the  
AC adapter, disconnect the charger  
by pulling the plug rather than the  
cord.  
Warnings:  
• Do not use an extension cord. Its  
use could result in fire or electric  
shock.  
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.  
• Do not operate the charger if the AC  
adapter is damaged. Have the  
charger repaired by qualified service  
personnel.  
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.  
• 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.  
• Do not expose the charger to rain or  
excessive moisture.  
• Never use the charger as a DC  
power source for any electrical  
equipment.  
• 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.  
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OPERATION  
CHARGING HINTS  
Amount of  
Charge  
The  
bars illus-  
trate the charging  
process and scan  
inside the amount-  
of-charge symbol  
(except during top-  
off/trickle charg-  
ing). The more  
bars that appear  
while a battery is  
being analyzed, the  
more charge there  
is in the battery.  
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.  
Load  
Reminds you to  
load batteries.  
Numeric  
Digits show bat-  
tery voltage.  
Bad Battery  
If a battery is bad  
or should not be  
charged, both  
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.  
and  
appear.  
Power  
Appears during  
trickle charging  
when batteries are  
almost fully  
charged.  
Intelligent  
Discharge  
System (IDS)  
During battery dis-  
charge,  
appears steadily  
• All batteries loaded into the  
charger’s chambers must be of the  
same size and type.  
with  
blinking.  
Soft-Start  
During soft-start,  
appears  
steadily and  
blinks.  
• 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.  
Fast Charge  
During fast charg-  
• Before unplugging the adapter from  
the AC outlet, remove the batteries  
to prevent leakage that will damage  
the charger.  
ing,  
appears  
steadily and  
blinks.  
Top-off/  
Trickle  
During top-off or  
trickle charging,  
appears  
steadily with  
and  
alternately  
blinking.  
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CONNECTING POWER  
CHECKING 1.2V  
BATTERIES  
Before connecting power, remove all  
batteries from the charger. Insert the  
supplied adapter’s barrel plug into the  
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.)  
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.  
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).  
ANALYZE  
2. Press  
.
The charger dis-  
plays the estimated  
charge level, with  
OPENING THE COVER  
To open the cover, press the tab below  
the cover and lift up the cover.  
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.  
5
 
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• If the battery is unsuitable for  
charging,  
appears on the dis-  
play. Do not attempt to charge a  
bad battery. At the end of a nickel-  
cadmium or nickel-metal hydride  
battery’s useful life, it must be  
recycled or disposed of properly.  
Contact your local, county, or  
state hazardous waste manage-  
ment authorities for information  
on recycling or disposal programs  
in your area. Some options that  
might be available are: municipal  
Insert Charging  
Time Graph  
curbside  
collection,  
drop-off  
boxes at retailers such as your  
local RadioShack store (nickel-  
cadmium only), recycling collec-  
tion centers, and mail-back pro-  
grams.  
Note: Charging times are typical; actual  
charging times might vary. The built-in  
Fuzzy Logic Control automatically deter-  
mines the optimal charging current,  
which in turn determines the charging  
time.  
• The checking process drains cur-  
rent from batteries. Therefore,  
repeatedly checking the same  
batteries decreases their voltage.  
1. After connecting power to the  
charger, open the cover and place  
up to four AAA, AA, C, or D batteries  
in the charger, one battery per  
chamber, as indicated by the polar-  
ity symbols (+ and –) marked inside  
the chambers.  
3. To check another battery, repeat  
Steps 1 and 2. To charge the bat-  
tery, see “Charging AA/AAA/C/D  
Batteries.”  
CHARGING AA/AAA/C/D  
BATTERIES  
This graph shows the estimated typical  
fast-charging time for different sizes of  
batteries. Note that charging times in-  
crease when more than one battery is  
charged.  
6
 
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Caution: All batteries loaded into  
the charger’s chambers must be of  
the same size and type.  
of full capacity. The bars inside the  
amount-of-charge symbol scan  
upward.  
2. Close the cover.  
disappears.  
The charger then enters the top-off  
charging mode to top off the remain-  
ing 10–20% of battery capacity.  
First, the charger checks the batter-  
ies’ condition. Then, if the batteries  
are more than 60% discharged, the  
charger’s Intelligent Discharge Sys-  
tem (IDS) automatically and com-  
pletely discharges them. The  
numeric symbol shows the batteries’  
voltage, the bars in the amount-of-  
charge symbol scan down, and the  
black triangle in the IDS icon flashes  
to indicate that the charger is dis-  
charging the batteries.  
and  
and the top bar inside the  
amount-of-charge symbol flash.  
Finally, the charger enters the trickle  
charging mode, providing a very low  
current to keep the batteries at their  
fullest until you open the cover.  
and  
continue to flash and  
appears. All bars in the amount-of-  
charge symbol appear.  
3. Open the cover and remove the bat-  
teries.  
Note: To stop the  
discharging cycle,  
4. Unplug the adapter from the AC out-  
let.  
DIS-  
you can press  
CHARGE  
.
The  
charger begins soft-  
start charging. How-  
Warning: 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.  
ever,  
doing  
repeatedly  
this can  
reduce the batteries’  
maximum capacity.  
Cautions:  
• After you unplug the adapter from  
the AC outlet, wait at least 3 sec-  
onds before you plug it into the  
AC outlet again.  
If the batteries are less than 60%  
discharged, the charger starts soft-  
start charging, gradually increasing  
the charging current to the batteries.  
The bars in the amount-of-charge  
symbol scan inward and the black  
bar in the soft-start symbol icon  
flashes.  
• Be sure to remove all batteries  
before you unplug the adapter to  
prevent battery leakage that will  
damage the charger.  
Next, the charger begins fast charg-  
ing.  
flashes, and the charger  
charges the batteries up to 80–90%  
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Note: The charger can activate or revi-  
talize some chemically dormant batter-  
ies. If you have new batteries (or  
batteries that have not been used for a  
long time) that cannot be fully charged  
(charged to more than 60% of battery  
capacity) singly, recharge them three or  
four at a time, then discharge them com-  
pletely through normal use. Repeat this  
process five times. Then, if the batteries  
will still not fully charge singly, this  
means you will always have to charge  
them three or four at a time.  
Notes:  
• The cover does not need to be  
closed to charge the 9V battery.  
• You can charge up to 4 AA or  
AAA batteries, or 2 C or D batter-  
ies at the same time as you  
charge a 9V battery.  
2. When charging is complete, the 9V  
charging indicator lights steadily.  
Remove the battery.  
Note: If other batteries are still  
charging after the 9V battery is fully  
charged, the 9V charging indicator  
continues to flash until the other bat-  
teries are fully charged.  
CHARGING A 9V  
BATTERY  
3. Unplug the adapter from the AC out-  
let.  
Refer to the graph on Page 6 for charg-  
ing times.  
Warning: To prevent damage to  
your charger and risk of electric  
shock, always unplug the AC  
adapter from the AC outlet before  
you unplug it from the charger.  
1. After connecting power to the  
charger, simply push the terminals  
of the 9V battery onto the connec-  
tors inside the charger, matching the  
polarity symbols marked next to the  
connectors. The charger begins  
charging the battery and the 9V  
charging indicator flashes.  
Cautions:  
• After you unplug the adapter from  
the AC outlet, wait at least 3 sec-  
onds before you plug it into the  
AC outlet again.  
• Be sure to remove all batteries  
before you unplug the adapter to  
prevent battery leakage that will  
damage the charger.  
8
 
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CARE AND MAINTENANCE  
Your RadioShack Ni-Cd and Nickel Metal Hydride Rechargeable Battery Pulse  
Charger is an example of superior design and craftsmanship. The following sugges-  
tions will help you care for your charger so you can enjoy it for years.  
Keep the charger dry. If it gets wet, wipe it dry immediately. Liquids can  
contain minerals that corrode electronic circuits.  
Use and store the charger only in normal temperature environments.  
Temperature extremes can shorten the life of electronic devices, dam-  
age batteries, and distort or melt plastic parts.  
Handle the charger gently and carefully. Dropping it can damage circuit  
boards and cases and can cause the charger to work improperly.  
Keep the charger away from dust and dirt, which can cause premature  
wear of parts.  
Wipe the charger with a damp cloth occasionally to keep it looking new.  
Do not use harsh chemicals, cleaning solvents, or strong detergents to  
clean your charger.  
Modifying or tampering with the charger’s internal components can cause a malfunc-  
tion and invalidate your charger’s warranty. If your charger is not performing as it  
should, take it to your local RadioShack store for assistance.  
9
 
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SPECIFICATIONS  
Number of Channels for 1.2V Ni-Cd/Ni-MH Batteries ............................................... 4  
Number of Channels for a 9V Ni-Cd/Ni-MH Battery .................................................. 1  
Input Power Rating ............................................................. DC 12 V, 500 mA, 6.0 VA  
Output Power Rating ...................................................... DC 2.0 V, 2.0 A max. 4.0 VA  
DC 10.5 V, 25.0mA max. 0.3 VA  
1.2V Ni-Cd/Ni-MH Battery Charging Current ............................................. 2.0 A max.  
9V Ni-Cd/Ni-MH Battery Charging Current .......................................... 17.5–22.5 mA  
Discharging/Negative Pulse Loading ............................................................. 0.5 ohm  
Discharging Current Rating ......................................................................... 2.5A max.  
Battery Sizes ................................................................................ AAA, AA, C, D, 9 V  
1.2V Ni-Cd/Ni-MH Battery Rated Capacity ........................................... 180 mAh min.  
9V Ni-Cd/Ni-MH Battery Rated Capacity ....................... 65 mAh min./120 mAh max.  
Operating Temperature ................................................ 32×F to 104×F (0×C to 40×C)  
Recommended Charging Temperature  
for Optimum Charging Performance ............................ 68×F to 86×F (20×C to 30×C)  
Storage Temperature ............................................... –4×F to 158×F (–20×C to 70×C)  
Specifications are typical; individual units might vary. Specifications are subject to  
change and improvement without notice.  
10  
 
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NOTES  
11  
 
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Limited Ninety-Day Warranty  
This product is warranted by RadioShack against manufacturing defects in material and workman-  
ship under normal use for ninety (90) days from the date of purchase from RadioShack company-  
owned stores and authorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED  
HEREIN, RadioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES,  
INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,  
ARE LIMITED IN DURATION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES  
CONTAINED HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO LIABIL-  
ITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RE-  
SPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE  
OR PERFORMANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WAR-  
RANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVE-  
NIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT,  
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN AD-  
VISED OF THE POSSIBILITY OF SUCH DAMAGES.  
Some states do not allow the limitations on how long an implied warranty lasts or the exclusion of in-  
cidental or consequential damages, so the above limitations or exclusions may not apply to you.  
In the event of a product defect during the warranty period, take the product and the RadioShack  
sales receipt as proof of purchase date to any RadioShack store. RadioShack will, at its option, un-  
less otherwise provided by law: (a) correct the defect by product repair without charge for parts and  
labor; (b) replace the product with one of the same or similar design; or (c) refund the purchase  
price. All replaced parts and products, and products on which a refund is made, become the prop-  
erty of RadioShack. New or reconditioned parts and products may be used in the performance of  
warranty service. Repaired or replaced parts and products are warranted for the remainder of the  
original warranty period. You will be charged for repair or replacement of the product made after the  
expiration of the warranty period.  
This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse,  
accident, misuse, improper or abnormal usage, failure to follow instructions, improper installation or  
maintenance, alteration, lightning or other incidence of excess voltage or current; (b) any repairs  
other than those provided by a RadioShack Authorized Service Facility; (c) consumables such as  
fuses or batteries; (d) cosmetic damage; (e) transportation, shipping or insurance costs; or (f) costs  
of product removal, installation, set-up service adjustment or reinstallation.  
This warranty gives you specific legal rights, and you may also have other rights which vary from  
state to state.  
RadioShack Customer Relations, Dept. W, 100 Throckmorton St., Suite 600, Fort Worth, TX 76102  
We Service What We Sell  
3/97  
RadioShack  
A Division of Tandy Corporation  
Fort Worth, Texas 76102  
P/N: 41A040-01000  
Printed in China  
3A8  
 

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