Question about Toshiba Portege 7140CT Notebook

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Toshiba Portege 7140CT battery problem

Most of the time my system won't recognize the presence of the battery. Occasionally the power icon indicates the battery is charging, but after it reaches about 15%, it goes blank and again tells me no battery is present. The battery is new and works on a friend's system. How can I get my system to recognize and charge the battery? Thanks.

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  • Anonymous Jun 14, 2008

    I have exactly the same problem with my 7140CT. When the computer "loses" the battery if I shut down and try to restart on the battery it shuts down after a second or so (the HD starts and immediately stops). The battery has to be disconnected and reconnected in order for the computer to function on the battery alone - which it then does no problem. Switching on the power whilst in battery mode restarts the charging - but it shuts off again within 10 minutes at the most. The Windows power meter shows AC Mode when running on the battery alone after restarting when the orange charging light goes off.

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Your ac adapter may be the problem. Is the adapter in good condition. Try using your friends ac adapter since you have the same model laptop. If it charges up your battery and the light stays on your adapter is at fault. Then replace your adapter or the part of it that is at fault. It could be the plug or base. If that does not solve your problem check your dc port on the laptop itself. Shut it down. On the back of your laptop where you plug in the ac adapter there is a pin. Does the pin move? If it does then you have another problem. The port may need replacing which most repair shops don't do. They usually replace the main board which can be costly. Hopefully that's not the problem. Let me know if either of these are not the case then we can go from there. Hope this solves your problem

Posted on Sep 08, 2007

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