Quote:
Originally Posted by kinetic
Good digital multimeters have PC connectivity and software for
data logging.
4hrs sound a pain in the bum though for duration.
If you went to D cell NiMhs or just a 6v Gel cell with a diode or
2 to drop it 1.2v, that would last days.
Steve
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My Fluke 79 Series is an old model DMM which does not have that function, so I'll just run it and check the voltage at regular interval and log it in Excel or graph paper (the ol' fashioned way
)
Steve, I'm not stressing about the duration only being 4 hours. It's a 8" Dob for brief sessions, with the young 'uns, and to pop in the boot of the car for a casual observing evening. I'd rather carry an extra set of 4 AA's and a quick charger. I want to keep any on-board electronics to a minimum, both in weight and complexity. If I was building a bigger Dob, things would be different.