Hi all, thanks for the replies.

The purpose is to make a battery charger/discharger/cycler/profiler. I
want to be able to accurately detect end of charge and "almost dead"
states using delta V. Plotting discharge curves would also show true
battery capacity.

I ordered some Maxim samples of 14 bit ADCs, which should give
better-than-millivolt accuracy, but as everyone said,
noise/temperature/other stuff will make that accuracy irrelevant.

I'll just go ahead and use the 10 bit ADC on the PIC. Also cool since
the PIC has multiple ADC channels.

I'm going to be measuring NiMH voltages only, so around 0 - 1.5 volts
is an acceptable range per channel. Should give me far better accuracy
than I need.
--=20
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