micro amperes and millivolts data acquisition (1 measure/min) on 8 devices

Projects General Guidance
1

Dear Arduino community,
I'd like to plot current-voltage graphs on 8 hand-made batteries. The problem is that the currents and voltages take a lot of time to become stable each time I change the resistance.
Would it be possible to acquire current and voltage with one or two Arduino boards connected to a laptop (or stand-alone. The simpler the better)?
1 measurement of voltage and current per minute is okay for me.
The voltages and currents are low (typically around 100 mV and 15 µA).
The graphing could be done on a spreadsheet program.

If so, what Arduino boards/shields should I buy (I live in a remote place and somebody could bring me the material at the beginning of January)? Are there plans I could find on the net?

Thanks in advance,
Frédéric.

2

You would be better off using two multi meters with serial interface on them they are quite cheap.
Otherwise it is an expensive exercises using external instrumentation amplifiers and A/D converters to get a decent resolution.

3

Thanks for your fast answer Grumpy_Mike!
Frédéric.