Re-celling X41T batteries

[thinklogic]

Do anyone here have advice on "re-celling" X41T batteries (preferably 8-cell, but 4-cell advice is good too! )

I have an 8-cell X41T battery that's got maybe 50 minutes of life on a full charge, so it's pretty much far and gone. I was very curious if it would be possible to "re-cell" it, as in buy the actual lithium cells and build the pack back up from scratch. I am reasonably competent around batteries and soldering, however I am very hesitant about cracking open the battery pack before I know what's in it!!

I figure if I can save myself the hassle of dealing with some Hong Kong battery outfit with no hope of reasonable returns, I'm all for it.

So, to those that do know - what kind of cells are in the X41T batteries? Who makes the Lithium cells and what are the size parameters? Any recommended sources for these particular cells or equivalents?

[loyukfai]

These photos may interest you...

http://www.51nb.com/viewnews-40881-page-1.html

http://www.batterydoctor.com.cn/DCZX/2009/09/19/82.html

Cheers.

[thinklogic]

These photos may interest you...

http://www.51nb.com/viewnews-40881-page-1.html

http://www.batterydoctor.com.cn/DCZX/2009/09/19/82.html

Cheers.

Thanks for the photos...I wish I knew Chinese!

Running it through Google translator will give me some idea of what it is saying. However the photos mostly speak for themselves!

[frankiepankie]

Be sure to keep the electronics inside the battery powered when changing the cells.

I tried it with a T40 battery, but forgot to power the electronics while changing the cell, and the small moment (maybe 5 minutes) caused the electronics never to function again

The 18650 cell soldering went without a problem, but after soldering the cells and re-assembling the battery pack again, the battery indicator on my T40 was flashing orange quickly, and the IBM Battery MaxiMiser told me my battery was dead. Mission failed

However, i did it earlier on a no-name laptop, and that worked without a problem

[jronald]

I have done T30 and A31's. The A31 was a cake walk, the T30's not so much.
Purchased my cells from here.
http://www.all-battery.com/
Its a bunch of work, and using decent cells, you are not going to save anything once you factor in your time.

Ron

[ilakast]

Had a dead one and decided to crack it open before recycling it...