[mjammersc]

Sounds like the install and setup is pretty good. 12.7V is a typical voltage for a fully charged battery at rest and even better when pulling a small load. As you saw, when you brewed the coffee it dropped to 12V under a heavier load. What you need to figure out is how to monitor current as that is what matters and more specifically AH usage (or a % full like the Trimetric meter).


As far as the inverter needing a minimum current draw to kick it on, that is the way many are (mine is). I am not familiar with your inverter but on mine, the level is configurable if I remember right.


Time to dive into the manuals and learn all the knobs you can play with. One thing to confirm is the settings for the solar converter (and any battery charger) to be sure they are set to match your battery type, size, and desired charge voltages.