We just got a Crossfire 2005 convertible with 14,000 miles and the Interstate battery died twice. The first time we jump-started it and took it to Batteries Plus to ask about the battery and they tested it and said it was probably something to do with the electronics but that the battery was fine and it just died again and both times it was not being driven for about a week or two so we don't understand why because the battery is only 6 months old

Thanks for any help with this, Jim and Jen