TEberg, no I will not take it the wrong way. I asked a question and you are giving me a polite answer. I have an inverter in the back of the truck and was going to use that, but as you point out, that would have been another mistake made by me. ( That is why I am asking questions. I am really new to all of this, so your answer really helped me out on that one. However, I do have a generator as well, so I could just throw that in the back of the truck and like you said, unlimited power. Ha HA Ha. Actually did not think of that.
I had planned on charging all of my battries the night before, but after asking this question originally and finding that I the best thing for me would be to get a 12V DC power supply as Jim, I kind was looking as getting a second set of packs for so I can fly on one pack while recharging the other. Man, I have not even got to the field to begin with an instructor yet (too cold ), and this stuff is getting expensive.