I too went with the individual panels meters for my project which I have two 12VDC VOLTMETERS and ONE 0-70ADC CURRENT meter. This was several years back before all of the nice meter panels are now available...
This was mounted on the back of a SPECIALITY Three Gang Light Switch and Electrical box from LOWES and is mounted vertical in my monitor position......
The two DC Voltmeters just ties into my main Battery selector switch and measures each battery bank Dc VOLTS. The DC Current meter is using the DC CURRENT Transformer method and is just in front of the Battery selector switch and measures the DC current being drawn from the selected batteries showing a minus symbol in front of the reading. This current meter also measures how much current the selected batteries are demanding from the on-board converter/charger setup when connected to shore power or my 2KW Generator. The meter panel shows just a DC current meter reading without the minus symbol when in this mode.
This is quick schematic showing my hookup
The only thing I wish I had was a auot alarm whenever my 12V Meter drops to around 12.0VDC telling my my battery banks is at its approximately 50% charge state...
All installs are certainly different. Just showing what I did here for my setup to get you to think of different ways to do this... This may not be you cup of tea at all haha...
They have come out with a couple of monitor panel meters real cheap using a panel that shows all of this info on it... NICE...
I do alot of camping off the power grid (sometimes a couple of weeks at a time) and this is my primary way not to allow my batteries to drop below their 50% charge state so that i don't damage them...
Roy Ken
