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Trouble With A Battery


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7 replies to this topic

#1 justjules

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Posted 05 August 2007 - 07:27 AM

hi, could anyone please tell me how to replace the cmos lithium backup battery in an IBM T20 laptop. I have located it under the
main battery but I cant see how you would unplug it or plug it back in again, this is very annoying as every time I boot the
machine I have to reset the time and date.
thanks for any help in this matter
justjules x :thumbsup:

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#2 dc3

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Posted 05 August 2007 - 10:03 AM

There is a clip that usually holds one edge of the battery against the lip of the battery socket, you will need to gently move the clip out of the was to lift the battery out. Please notice the polarity of the battery when you remove it.

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#3 XilStorm

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Posted 05 August 2007 - 09:04 PM

Are you sure you need to replace the battery? Usually it is something else. dc3 is right though, but I have NEVER had to change the battery, not in 7 years of building and working with computers.

Just wondering, how did you kno it was your battery?

#4 Sneakycyber

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Posted 05 August 2007 - 09:30 PM

Lithium batteries are rated for 5 years, Usually they crap out in older computers, I have found bad ones however in newer computers. You've been lucky not to have had a bad one
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#5 dc3

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Posted 05 August 2007 - 09:32 PM

Are you sure you need to replace the battery? Usually it is something else. dc3 is right though, but I have NEVER had to change the battery, not in 7 years of building and working with computers.

Just wondering, how did you kno it was your battery?


The battery maintains the information in the BIOS, and it maintain the clock and date, if you read their post you will have noticed that they had to constantly change the time and date. Typically batteries will last about three years on average.

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#6 usasma

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Posted 06 August 2007 - 07:15 AM

Stuff happens and batteries go bad. I had a brand new Asus mobo that the battery went dead within 3 months - and replacing the battery fixed the issues and the mobo is still operating well several years later with that new battery.

Specific instructions for it's removal should be available at the IBM support website - but I recall seeing several laptops where it couldn't be changed without a soldering iron.
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#7 Budapest

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Posted 06 August 2007 - 08:19 AM

You can download the Hardware Maintenance Manual for an IBM T20 Laptop from this site.

On page 61 there are instructions on how to replace the battery.
The power of accurate observation is commonly called cynicism by those who haven't got it.

—George Bernard Shaw

#8 justjules

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Posted 06 August 2007 - 04:49 PM

Thanks everyone with your help plus a new little battery and some cellotape ( bodge I know ) all is working
like a dream! :thumbsup: :flowers: :trumpet:




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