We like that…

Every morning I come down the ladder, deal with LB’s insecurity issues, then take a hightech composition book down off the shelf and record certain bits of data, including indicated battery voltage.

This morning’s voltage reading was…anomalous…

Not a surprise, of course. A normal reading, which this time of year would have been 12.0 to 12.1, would have been an unpleasant surprise.

I also expect the system to hit float around 10, which is normal for a sunny day. All it means is that I didn’t do anything profligate with electricity last night, because I wanted to see if the morning reading and the daily charge-up time went as expected.

It’s logical that they should, A is A, but sometimes it turns out A isn’t really A because I don’t know as much about what I’m doing as I think I do. Logic based on ignorance rarely works out well. So before I install a disco ball or an electric furnace or something, let’s check our premises.

The next question will be – should I happen to go nuts with the electricity overnight or during a gloomy spell, can my oddbit solar panel collection recharge the batteries in a reasonable day? I plan to approach the answer to that question in a gingerly but determined fashion. I’ll just keep telling myself it doesn’t really matter – I originally thought these batteries were junk anyway so if I dig myself into a hole I can always reinstall the Interstates.

About Joel

You shouldn't ask these questions of a paranoid recluse, you know.
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3 Responses to We like that…

  1. John says:

    A handy T105 data sheet:

    Four T105’s wired for 12v when new are rated 450 Amp-Hours which is twice my system capacity. I’ve had very good luck using Uxcell meters to monitor both charge and load currents:

    (They come in a good variety of range limits)

    I’ve one like this which is excellent because It will give me incoming or load over time. Mine is now just connected to a backup generator-charger but A second would be great for monitoring both watts in and watts out.:

    If you care to give it a go, so say. I can chip in as I know you will very likely provide useful feedback on how it works out in your application.

  2. John says:

    A hand calculator down the page here for estimating how much valuable power is being lost to heat in our wire runs!

  3. John says:

    I had to use the googler machine to find out if that was good or bad….

To the stake with the heretic!