I have a 0540 straight valve. I have what appears to be a car style alternator, and my battery is less than a year old. When i turn on my lights, it pulls down to 11 volts, even when the rpms are up, is this normal on a a/c motor, or do i need to go to a double battery system? I am able to run two 55wt offroad lights with my running lights and a 100wt headlamp without it going below 11volts... :roll: :roll: :roll: