No offense taken! I know very little about solar. When I was asking if 68 watts would be enough, what I meant was will 68 watts charge the battery as fast as I'm drawing from it. I have it set up so that all camping electronics run off the coach battery (even the car stereo) so that I will never have to worry about having a dead truck battery. Although I do have a small docking station I can use if the car stereo is drawing too much power. I'm starting to think that I might just go with the portable solar panel since the only time I will need to use solar is when I'm stopped for several days. My only concern with that system is space to store it since my chinook has a very limited amount of it. I think I will start to research different portable panels. Thanks so much for your input, and feel free to point me in the direction of a good one if there is a particular one that you really like.