Quote Originally Posted by Sir C View Post
It could be any number of things tbh, but the first question is when the battery appeared flat, was the engine turning over or did you just get a click on the key? Or maybe there was no reaction to turning the key at all? Dash lights?
Says it was a whirling sound, like it was trying to turn over but not enough juice. She's driven our truck all over Europe, and knows what a flat battery is - and a truck takes a dozen to bump start.

But this has just confused. Btw, thanks for trying to trouble shoot this for us. Much appreciated. Happy Xmas to you and your little ponies.