On Sep 16, 11:40*pm, "Michael Kennedy" mike@com wrote:
"JoeSchmoe" wrote in message

...





Have you ever opened up your laptop battery to replace the lithium ion
cells inside (if so, I could use the help as I'm stuck).

Here are the pictures of the operation on a Lenovo X61 tablet PC 8-cell
4500 amp-hour battery kidney-transplant operation.

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?

Right off I am not familar with your bateries, although my guess(tm) is that
you can find them on ebay or google if you search for lithium ion cells.
Some come with tabs welded to them so you can solder them togeather eaisly
and avoid destroying the battery via heat. If they are the right size and
right chemestry they should work. The mAh rating will probably be higher on
new batteries than the originals becuase of advancements in battery
technology.

Just be careful and dont get these things too hot while soldering. They have
been known to burst into flames like a flare. I highly suggest you buy the
tabbed verison.

Mike- Hide quoted text -

- Show quoted text -

Ive made packs with tabs and the batteries were real hot when
soldering, the tab transfers heat and soldering is tricky. Mine were a
mess and would never fit back into a plastic case, freezing the cell
first in your deep freeze will help but I think he will fail for
several reasons.