Hi everyone, Did a 100 mile trip in the car today and have recently fitted my scangauge as was wanting to monitor water temperature. I noticed the battery voltage would drop from charging ie 14.2V to 12.6/7V. It was intermittent but worried it might fail and leave me stranded one day. My car already has the shorter belt fitted too. I did check it with a multimeter to confirm also. I take it this means replacing the alternator? Alternatorman has them for £110 and I see a continental belt from cp4l on eBay too for £13.50. Is this my best route to go down and does my diagnosis sound correct? Anything else to do at the same time?