Battery Voltage Monitor
Built this little battery monitor a while back. I picked up the readout at a flea market for $4 and mounted it in a small box. The switch on the side turns the display on/off. Sure makes for a quick ...
Forum Discussion
Wayne Dohnal wrote:
When charging from a generator it lets you know when it's time to shut the genny off. Somebody with experience can figure this out with the voltmeter/ammeter combo, it's just more work and less accurate.
When charging from solar, voltage is indeed of little practical use, as I've noticed. It varies with load and the charger is adjusting it as temperature changes. Can't say about charging from generator - there hasn't been much need so far - but it should be similar, i.e. very rough way of measuring.
The only time one can estimate the battery SOC by looking at the volt meter, is in absence of loads and charging, and after 20-24 hours rest following the charging.
