Carol,
I scratched my head on this issue a long time as well. My conclusions and reasons follow. It may help you decide.
First, I want a microwave and a vacuum cleaner. I also have lots of electrical toys to play with (shaver, model planes, palm pilot, drill motor for the jacks, cell phone, and now a new laptop). And of course, the furnace.
I am currently in Flagstaff, 180 miles from home at the end of a 4 week vacation and 4000 miles with the TM in tow. I am very happy with my implemented solution.
My solution was to purchase a Honda eu2000i generator. It is light enough for me to lift while full of fuel. It runs a loooong time on about 1/2 gal. It powers my microwave and all the toys. It also does the laptop . As mentioned above, my inverters seem to not turn on unless the battery is being charged. My older inverters did power the laptop and other smaller toys with the generator off.
I did two other things.
A) I replaced the wimpy converter that came with my '02 and put in a PD 9600 solid state converter. It does a much better job of quick charging my TM battery without overcharging it or bubbling the water out.
B) I installed a battery meter, the Xantrex Link 10. Now I can see the state of charge remaining in my battery.
With this combo, I am charging my battery while making breakfast. The microwave is ready when I am. After breakfast, the geney can be turned off. One tank of gas will do maybe 2 campout weekends easily.
My wife (now deceased) could not tolerate cold and I was very anal about making sure the furnace would run all night. We mostly dry camped.
I really liked the way the power worked on my TM this summer. My battery is really about shot. I think it only has about 50 Amp Hours of capacity where new it was 105. But I got by very well, just knowing what was remaining helped me determine what to do.
By the way, I decided against solar as I love to camp in shady places. (I'm the guy under the tree over there...) That really cuts the output of solar, so keep that in mind. I also believe that sufficient solar panels to charge my battery would cost as much as the Honda. Some day, the cost factor will change and I may very well add solar then.
I hope this helps.
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