> Well, you can buy separate Li-Ion cells, that's no problem. But they're
> dangeours if not handled properly as said.
I have yet to find a distributor or source in the U.S which is willing to
sell larger
size Li-Ion cells. Say 4.2V per cell, in a 4/3AA size. Let me know where I
can get those.
>
> More complicated thing is to replace electronics inside batterypack.
> Sometimes is possible to use same circuitry than old pack had.
>
True, miniaturizing the circuit card to fit into a specific 'pack' is always
a challenge,
However, there seems to have been a slew of newer battery monitoring chips
available on the market recently which are available. These are "all in
one"
hybrids which will provide all the necessary functions and take up very
little
real estate. Programming machine code for this application isn't too bad.
> If possible replacing battery cells with NiMH or NiCd is much more
> advisable. It's safer and they're not as sensitive to over current as
> Li-Ion.
Well, our beloved 2400 gains some weight to achieve the same
energy displacement of our Li-Ion. To fit into the existing battery 'form
factor' we'd be giving up a substantial amount of run-time. You'll still
end up having to replace the smart battery electronics and perhaps
even making changes to the pmu code. That would be an interesting project
to take on. I really haven't thought about how you would approach it.
Jack
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