Took a while to respond because have been quite busy.
Here is how the WFCO-8725-Power-Center in my Trillium
13 was connected:
1 - 20A breaker on the input from trailer power cord Output goes to the other two 15 A breakers.
Double 15A Breaker
1 - Breaker supplies Galley - Refrig and galley outlets.
2- Breaker supplies the Power Center Charger circuit and other outlets in trailer.
There are 4 DC circuits.
-Bottom 1 goes to the battery. 30A. Also, right at the positive terminal to the battery I installed a large 65A fuse.
- 15 Amp DC to the three way refrig
- 15 Amp Inverter and stereo (Stereo is XM Radio and small amp that only draws about .5A)
- 15 Amp lights and auxiliary DC outlets
Regarding the inverter: It is a cheap $20 square wave type. It will run the coffee grinder only if the grinder
is turned upside down to get the motor up to speed and then upright to grind. If it is started upright the start load
of the beans being ground exceeds the inverters capacity and it shuts down. It was never tried it on my computer
power supply. I have a couple of batteries for the laptop and charge them when I can. Only use the puter for
e-mail and a little surfing when near a wireless. I watch DVDs at home an then read for entertainment when camping.
Regarding the two 6 volt batteries rather than a 12... It is hard to find a true 12V deep cycle battery that is a managable
size. I went with the 130AH Trojan because of the weight
of two Trojan T-105's was more than I wanted on the tongue.
The 6 volt ones would have a capacity of about 220AH so would be nice but for the style of camping I do they weren't
Hope this information helps.