Looks good! What did you use for a meter, and what do you use for charging?
Thanks. It's still a work-in-progress, but you get the idea.
The meter is a cigarette-lighter battery/alternator tester I picked up at Big Lots a few years back - it was only a few bucks but is surprisingly accurate. Charger is a 30-watt Solar Panel used primarily, with pig-tails for a Schumacher 1.5-amp Battery Maintainer in case i'd have to use 110 to charge it.
Already ordered is a panel-mount digital volt meter - which will allow me to free up the cigarette lighter receptacle and still monitor voltage.
This setup works great for low-current applications, including a cigarette-lighter Inverter.
The battery is a 26-Ah SLA. I'll upgrade to a 35-Ah U1 SLA when finances allow.