Two TROJAN 6VDC GOLF CART deep cycle Batteries will produce 225AHs and will provide 12VDC @ 25amps for about 7.45 hours.
Two TROJAN 12VDC 27TMH GP27 deep cycle Batteries will produce 210AHs and will provide 12VDC @ 25amps for about 6 hours.
You can pick and chose many different deep cycle batteries to suit your camping requirement but the bigger thing to do is have the capability of recharging the batteries in a 2-3 hour generator run time when allowed to run generators at the camp sites.
Most of the camp sites we go to all have generator run time restrictions of 8AM-10AM in the mornings and then again from 4:30PM -7:30PM in the early evening. Doesn't give you much time to re-charge your batteries back up to the required 90% charge state so you can get the specified hours of operations before they drain down on you again the next night.
Smart-mode converter/chargers, interior lights converted to LED boards, use of small wattage PSW Inverters to run your home entertainment items, all go hand-in-hand with adding more batteries and using a 2KW Honda type small generator with the trailer shore power cable connected directly to it with a RV30A-15A "dogbone" type adapter to re-charge batteries in the short time allowed to run generators.
Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA
RETIRED DOD DOAF DON CONTRACTOR Electronics Tech 42YRS
"We're burning daylight" - John Wayne
2008 STARCRAFT 14RT OFF-ROAD POPUP with PD9260C and three 85AH 12VDC batteries
2010 F150 FX4 5.4 GAS with 3.73 gears - Super Cab - Towing Package - 2KW Honda EU2000i Gen
K9PHT (since 1957) 146.52Mhz
"We always have a PLAN B"