Gene...I cheated on the two AGMs. We went to a friend of ours, one of Scottiemom's H.S. classmates and the president of a top notch RV service company in Elkhart Indiana, Charger Enterprises. Charger is by far best in the area to our experience, great people who don't blow there own horn as others do.
I asked Gerald if he could install a new hatch to be able to service the battery, during our big trip. He suggested we go AGM and forget about it, except for cable inspections. Well then I said "Can you add a second battery?" At first he suggested putting the second battery in a case under the couch, I told him I'd rather have the storage space instead, but would leave it to him, once he got into it. He was to do the job over the winter during his slow time. Well last month he got it out of storage and did the modification I requested. He ended up having his guys fabricate a new battery tray so both batteries would be under the floor, all wired and installed in under two days. The good news was we got a 10% discount on the bill for having it done during the slow season. Considering the cost of 6V AGMs, metal fabrication and cabling, a bit north of $700 wasn't bad. We'll see the job they did next week when we get the 213 out of storage, I'm sure we'll be pleased due to his normal high standard of quality work.
Right now we're in our Phaeton with 3-4 inches of snow at a state park 15 miles south of Richmond VA. A little over 3 weeks ago we were enjoying sun and 95° in the Rio Grande Valley, but wanted to see our kids and their families before the big trip. So here we are "enjoying" the prediction of a lying, fat, useless rodent by the name of Phil, of an "Early Spring".
The "Buddy Heater" is getting a work out, sitting beside our Olympian Catalytic heater keeping us very comfortable, now to work out a LP hookup in the 213. No sense in hauling 1# bottles, when space is at a premium.