I have a 2011 Volt with about 100,000 miles. So far its been fine but the other day the car would not start and had to be jumped. I thought maybe this was a fluke since my Wife had accidentally left the car running for a few hours. Anyway after jumping it the car was fine for 3-4 days. But then on Saturday we parked the car across the street and it wasn't plugged in. Once more it had to be jumped. I suspect the original 12 volt starter battery might be on its way out? I ask because it seems there is hardly any info about this perhaps because the first gen cars are just now starting to actually get old enough to have stuff like this wear out. Anyone else here experience this kind of thing? I am going to pick up a new battery tomorrow.