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
I use a battery monitor. It provides a voltmeter and ammeter, which many add to their RV with basic low cost meters. What the monitor provides over and above volts and amps is tracking of the approximate number of amp hours that go into and out of the battery. When boondocking, it lets you know how much battery power you've used up. With this info you know whether it safe to continue the consumption rate of if you need to conserve. 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 plugged into shore power a voltmeter is probably all you really need.
