Question about IBM ThinkPad T22 2647 Notebook

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Battery/Power Issue My T22 works with the power cord but when running on battery it dies in about 5 minutes (battery says 90% charge and then beeps saying low battery). I bought a replacement battery which was tested to have an hour charge. I put it in the T22 and had the same exact problem. What else could be the problem and is there an easy solution (besides not being a cheap bastard and buying a new laptop). Thanks for your help

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  • qwedsa Aug 21, 2007

    After searching the net, I saw other people that had the same problem. It is not the battery because if you disable the autohibernate and the low battery alarms, the computer continues to work on battery power for about another hour even though the battery indicator is a 0%. Don't know how to fix it yet, but I can continue to use it despite the battery indicator issue. Thank you

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If you are looking for a brand new Original T22 laptop battery
Buy it here
$90 only. Full warranty and moneyback

Posted on Jul 07, 2008

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Cant help with the "cheap bastard" part, that is for your own edifcation. Anyway, have you adjusted your laptop power/battery settings. If you have tried changing your settings to "Max Battery", and it is still doing this it is probably a hardware issue between the MB and the battery interface. Thus the second part of your message might be comming true. Sorry.

Posted on Aug 21, 2007

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battery have residual power which last few minutes to allow safely switch off, as you used this power, it shut down. this residual reserve is usually between 3% to 5% of capacity.

and do not fiddle with it till you recharge it, reset will not work while there is no power, any other "trickery" will not work either.

now, plug battery to known good charger and charge it for 24hrs, do not switch it on during that time nor disconnect from the charger.

after this it should be starting and working normally, if it does not - it is still under warranty and you should return it to the place of purchase for repair or replacement, even if you do not have receipt. tablet have it's serial number and can be traced in the store to day, and even hour and minute when it was sold...

hope this short info will help you - do not forget to vote...

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AC Adapter issues Q & A.


<p><b>Laptop switching to battery while connected to AC adapter</b><br /> <p><b>Q.</b> While turned on, the laptop will switch to battery power even if connected with the AC adaptor (sometimes during boot-up, or after a while) until the battery drains out, he then goes to hibernation (the battery light is off). If no battery in the laptop, it will shut down, and the AC light will blink very fast. The battery (li-ion) will only charge up to 10%, where it then jumps right up to 100%, and will discharge from 100% to 90% then jump to 0%, go to hibernation, and fails to complete the process, shutting down. The adaptor makes a small "camera flash charging" sound, stabilizing at 19v. When charging, it repeatedly makes the "charging sound" Faulty AC adaptor? Or Faulty battery? Or Both?<br /> <p><b>A. </b>First problem: The laptop switches to battery power even with connected AC adapter. Most likely you have a faulty power jack. It's either broken or loose. It's a known issue with laptops and you can fix it by replacing/resoldering the power jack or relocating it outside laptop case.<br /> <p>It also could be a problem with the power cord. Find a multimeter and check the AC adapter. See if the power cuts off when you jiggle the power cord. If it does, replace the adapter.<br /> <p>Second problem: The battery will discharge from 100% to 90% and then jump to 0%. It sounds like a bad battery.<br /> <p><b>Battery charging light is on even when power adapter is unplugged and laptop is stitched off</b><br /> <p><b>Q.</b>The yellow light for battery charging does not go even after switching the laptop off and power jack is disconnected. Battery does not charge at all with power source connected. <br /> <p><b>A.</b> First of all, try reconnection the battery if you haven't done it already.<br />The battery plugs directly into the connector attached to the motherboard. If the battery charging light stay on even when the power adapter is unplugged and the laptop is switched off, it's either bad battery or something is wrong with the motherboard. The only way to find the culprit is testing the laptop with another known good battery.<br /> <p>Also, you can try this. Remove the battery and plug in the power adapter. If the battery charging LED lights up even when the battery is removed, most likely you have a problem with the motherboard.<br /> <p><b>Battery charges only when the laptop is off</b><br /> <p><b>Q.</b> Bought a Laptop without AC Adapter. I noticed it would charge the battery OK when the laptop was off but once in windows it would not charge the battery.<br /> <p><b>A.</b> This is very important to choose the right AC adapter for your laptop. The output voltage MUST be exactly the same. If your laptop requires 18.5V you must use 18.5V adapter. The amperage should be the same or higher. If the laptop requires 4.74A adapter, you'll have to find an adapter which provides 4.74A or MORE. <br /> <p><b>While using AC adapter alone or battery alone, laptop works. While using them together, I am getting a problem.</b><br /> <p><b>Q.</b> While using AC adapter alone or battery alone, laptop works. However while using them together, laptop LED lights blinks and the power meter for battery drops down immediately to 0% critical level, whereas the battery LED indicator says it's full. I tried to unplug the AC adaptor while it went down to 0%, then the power meter for the battery came back to normal 85%.<br /> <p><b>A.</b> There could be a few different reasons why it happens:<br />1. It might be an issue with the BIOS. Make sure the laptop has the latest version of BIOS installed, update it if needed.<br />2. It might be a software related issue. If you have some kind of power management utility installed try uninstalling it and use Windows power management utility instead. Also I would try reinstalling the operating system if upgrading the BIOS or removing the power management utility does not help.<br />3. If you still experience the same problem even after upgrading the BIOS and reinstalling Windows, most likely you have a problem with the motherboard. Apparently the charging circuit is not working properly. I assume it's not a problem with the battery. You'll have to check the motherboard in this case. <br /> <p><b>Problem with my battery. 100% to about 40% the battery discharging normally then suddenly from 40% it drop directly to 2%.</b><br /> <p><b>Q.</b> When I use only on battery, from 100% to about 40% the battery discharging normally (last about 1 hour) then suddenly from 40% it drop directly to 2%.<br />When I plug the AC cord, it won't directly charge (the charge LED is still not on). 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