Looks like there is an intermittent short in your line. Your reading of 12.xV is not normal for a healthy battery. It should be 13.8V or near that level....

OT: Whew! 137KKm for a 2004 GRX? Nanliit ako riyan dahil gamit na gamit iyan... My 2005 is only 47KKm.......

8404:duel: