At 19:04 1999-02-06 -0500, you wrote:
>>Since this is a battery-powered device, with a total draw approaching
>>30mA (due to the need for some heavily compute-intensive code, and
>>thus a high clock speed), I am either going to use disposable batteries,
>>or rechargeables.  I would like to use rechargeables, but most of
>>the batteries I'm familiar with (lead acid, NiCad, NiMh) off-gas
>>too much during charging to reliably pot, which means I'm stuck with a bulky
>>(and expensive) 1 ATA housing.

Maybe try Li-Vn cells.  3V nom, 3,4V constant voltage charge; you always
know clearly when they are full.

Used them ten years ago for memory retention, and found them very nice:
50yr(!) self discharge time, high energy per volume, low toxicity at
destruction.  I think they had low power rating that time when they were
new type, but that ougt to have improved by now.  Manufacturer was
Panasonic, Type no VL something.  I think i recently saw some new types; VM
series or something.

Regards
/Morgan
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    Morgan Olsson                       ph  +46(0)414 70741
    MORGANS REGLERTEKNIK                fax +46(0)414 70331
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