On Thu, 16 Sep 2010 19:46:39 -0600, WW wrote:
Here are the pictures of the operation on a Lenovo X61 tablet PC 8-cell
4500 amp-hour battery kidney-transplant operation.
http://yfrog.com/4ylenovox61tlaptopbatteryjx

The outside of the IBM Lenovo X61 tablet PC battery pack has the part
numbers:
- FRU 42T4507
- ASM 42T5209

And the batteries themselves, seem to have numbers on them of: -
cylinders BCM 3A6 72653
- rectangles C 3 171353

Any idea where to obtain these lithium ion replacement batteries?

I just bought 2 lap top batteries, one for Dell and one for HP. Found
them at Mobile Track Power. Good warranty and good prices. Why mess
with what you have? WW

The question of why is a good one ... the answer is it's sheer cost!

The factory new battery is on the web for about $150.
I'm worried about the knockoffs which cost around $50 to $75.

BTW, I found some more references of successful rebuild DIYs which I'm
going through now as my biggest problem at the moment is finding the
replacement cells (later it will be fitting it all back together).

- HOW-TO: Rebuild your laptop battery by Engadget
http://www.engadget.com/2005/06/28/h...aptop-battery/

- Rebuilding a Laptop Battery Oct 05, 2008 by Phil Hughes
http://www.linuxjournal.com/content/...laptop-battery

- Refilling laptop batteries! February 17th, 2007 in Projects, Technology
http://www.summet.com/blog/2007/02/1...attery-refill/

- Can laptop batteries be repaired? by Isidor Buchmann Cadex Electronics,
December 2001
http://www.buchmann.ca/article21-page1.asp

- DIY Laptop Battery Rebuild: by Kevin O'Brien, NotebookReview.com on
1/30/2008
http://www.notebookreview.com/default.asp?newsID=4224