Now for the real world experience of dry/boondocking camping. Since 2011, we have used 4 6v AGM or GC-2 batteries. Inverter is 2000w. 98% dry camping, almost no genny time.
Micro, used 2.5minutes at a time at least once a day, hair dryer, 4 minutes once a day, toaster 3 minutes every other day. Various low watt 120v appliances like magic bullet, battery charging for electronics, coffee grinder etc. run off inverter. Never had a problem with low voltage shut off on the inverter.
I am sure You can use true12v deep cycle batteries in place of the 6v batteries but as is stated in the link and by the author in another presentation, 6v GC-2's or AGM,s are the recommended batteries for RV boondocking/ high inverter loads.
Dave
http://www.rvforum.net/miscfiles/Choosing_right_battery.pdf
