Something you posted leads me to a question.
You mentioned that you had it pulgged in so the batteries should be fully charged.
Now the question: by "No Power" do you mean, no 120vac (Several good suggestions above) or do you mean it just sat there and did not even turn over?
If the latter, I'll post more tomorrow, unless others beat me to the 12 volt side of life.
Home is where I park it!