on my golf vr6 the battery light was always on for about 1 month now, driven hard or normally. voltage check was 11.93 when car was running so battery was getting no charge. checked/cleaned all earths and wires and all ok so it was down to the alternator. bought a brand new 90amp alternator (i havent fitted it yet)! now today the battery light came off when driving hard! pulled into my drivaway battery light came on, revved it to 2000rpm and battery light went off! any ideas????? :-(