My charge indicator light will go on and off intermittently while running. I checked the battery at WOT and I get 13.5 v and at the stator its 43.7 v AC . Its the same whether the light is on or off and also with the PTO and lights on. Any idea's on what's going on? Is the voltage at the battery a little low or is it normal? If I wiggle the key around some I can get the light to go out, but it will come back on intermittently after driving it.