Re: How to refill/recell IBM t41 battery?


"Klamotek" <grzeklam@xxxxxxxxxx> wrote in message
news:1126736438.826508.292960@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> Have anyone recelled IBM t41 4400 mAh battery pack? Mayby someone know
> how to open this battery pack?
>

Unless you really, really know what you are doing, I would not advise anyone
to attempt a DIY cell replacement. In fact, I would emphatically advise
against it. I do know what I am doing, but I would still baulk at the
prospect.

Li-Ion cells are extremely dangerous devices if they are mistreated in any
way. They contain extremely flammable electrolyte and can contain material
that will spontaneously ignite on contact with air. They generate their own
oxygen while burning, and so are quite impossible to extinguish. It is all
too easy to short one or more cells while attempting to open a pack. Short
circuit = FIRE!.

>From an electronic point of view, virtually all batteries contain circuitry
that manages the battery charging/discharging. This circuit often holds
firmware, which in a few examples is retained using a very small amount of
power from the battery. Disconnect the cells on these batteries, and the
firmware is lost (the battery will never work again).

Much better to get a reliable battery rebuilder to do the job for you.


.

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