Question about Panasonic KX-TG4321B Cordless Phone

7 Answers

Batteries will not hold charge in handset

Phone is about 2 months old, I bought brand new batteries charged the phone for 7 hours, handset said fully charged. Within 10 to 15 minutes without the phone being used the phone beeped and was charging a low battery again. I have cleaned everything with a soft cloth and the phone keeps doing this. The batteries that came with the phone did the same thing they would not hold the charge even when the phone is not being used. The batteries get fully charged and then drop back to low battery and charging again. Thank You for any help you can give me.

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  • dianemielcar Feb 15, 2009

    That sounds like a good idea. Going to do that.
    Thanks

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Sounds like the phone set is the problem. It may not be giving the battery enough of a charge initially or a strong enough one. Being only 2 months old, it probably still has 30 days left on a minimum 90 day warranty. Take it back to the store and exchange for a new one. Keep the brand new batteries you bought as a backup.

Posted on Feb 15, 2009

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Thanks For Contacting Fixya!
Try cleaning the metal contacts with an eraser, like the one on a pencil. Also, make sure the phone and all cables are plugged in and firmly seated. Please rate my answer. I hope this helps!

Posted on Feb 15, 2009

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The socket where the batteries are inserted are getting short internally in that socket.also check out if the charging adapter is gone faulty.its not charging the battery properly.

Posted on Feb 15, 2009

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That means that the phone is defective and batteries are probably draining because of a short in the battery circuits.

Call the support phone number listed on the phone manual and get the phone replaced.

Posted on Feb 15, 2009

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If both the batteries that were included and the replacement batteries are doing the same thing then the charger is not working. Even a bad handset would not drain the batteries that fast. Did you have this problem for the entire two months?  If you have a meter measure the charger voltage and ensure that it exceeds the voltage of the batteries themselves. Please post back if you cannot measure the voltage. Steve

Posted on Feb 15, 2009

  • Stephen Medley
    Stephen Medley Feb 15, 2009

    There is a one year warranty for this model. Steve

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Hi and welcome to FixYa,

It would be unlikely for 2 batteries to have the same fault within the same period of time (assuming the new was bought from another source). I am then tempted to suspect that the battery is not the suspect but rather the charging circuitry. With this mind, try:

  • verify that the adapter is set to your country's voltage (some are 120, 220, 240 only while others are auto-volt 100 ~ 240);
  • cleaning may not be enough. Perhaps you need to use an abrasive material to scratch/scrape the battery contacts of the phone as well as the charging points/terminals. The idea is to ensure that corrosion/oxidation would be removed and expose fresh metal;
  • in some instances, it may even be necessary to slightly bend/stretch the handset's battery contacts. The purpose is to ensure that they present a tighter pressure point for the battery;
  • for some units that has been in service for some time, the internal connectors/wires/solder joints can and may develop corrosion. This would require opening the handset, visual inspection, cleaning and/or re-soldering.
Based on the phone being 2 months, you may want to consider simply returning to point of purchase and require a replacement.

Good luck and thank you for using FixYa.

Posted on Feb 15, 2009

  • Louie  Role
    Louie Role Feb 15, 2009

    Have you tried the scraping and stretching?

  • Louie  Role
    Louie Role Feb 15, 2009

    It would appear that you have 2 choices now:


    • perform a DIY (do-it-yourself) repair or seek a repair person to test the charging circuitry, measure the voltages, check for any faulty components. A DVM/VOM is essential to effect diagnosis and repairs. Should there be components deemed faulty and require replacements, a soldering iron is likewise needed. This of course would void the warranty;

    • as earlier suggested, being 2 months, make use of the warranty repair/replacement.
    Cheers.


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This is issue with that battery, it should be under warrenty get the battery replaced.

Posted on Feb 15, 2009

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I had the same problem, and it seems that the battery charging circuit in the handset had locked up, constantly charging the battery until it overheated. I was able to reset the circuit in my handset by completely draining the battery. Here is the procedure:

1. Remove the handset from the charging cradle, and leave it on for a few days until the battery runs out, and the handset finally turns off. At his point, the battery will be very low, BUT NOT COMPLETELY DRAINED.

2. Next, you must manually drain the charge remaining in the battery by shorting out the two contacts on it. Shorting won't damage the battery, since it is holding very little charge at this point. An easy way to physically do this is to remove the battery, and place a piece of thin wire across the the two contacts of the HANDSET. I am referring to the contacts inside the handset that connect to the battery, NOT the contacts on the bottom outside that connect the handset to the charging cradle. Next, put the battery back in, sandwiching the wire between the battery's contacts and those inside the handset. This will hold the wire in place. DO NOT PUT THE HANDSET BACK INTO THE CHARGER, WITH THE BATTERY SHORTED OUT.

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