I have the same problem when I accelerate battery idiot lite comes on. It actually comes on when there is increased load on the engine... once above 2000 if increasing speed light comes on then when I stabilize speed it goes off and stays off. If I put it on cruise it's fine. Now when I go over 80 it starts to flicker more constant. I am beginning to think it's related to the blower. If you accelerate the blower comes on and light comes on. If you easy up to speed no light. I know the blower wont' come on until you reach a certain rpm and theres load on the engine. What rpms does blower come on. Another thing revving the car in park up to 4000 repeatedly will not set off the light. In park blower doesn't come on. I've racked my brain on this and it is starting to point to blower. Everything else is new and checked out. How could the blower impact voltage? PLEASE HELP I AM AT WITS END!!!