Is this normal for the fuel gauge?

Your battery shoud never drain , if it does either the battery is bad or there is something left on to drain it , i can leave my dart for three weeks and it will turn over with lots of power. As far as the fuel gauge sounds like a bad ground at the tank .

I'm positive its not the battery. Once in awhile i'll forget to unhook the cables and then 2-3 weeks later my battery will have gone bad and the parts store will swap it out.