Quote Originally Posted by rlouie View Post
If it's using the same battery as the gas version, then it should be 390 CCA. Since you have had the car for a few years, it's not how much the battery is rated at that matters now, it's how much it puts out that matters now. All batteries as they age will loose some CCA as well as capacity much of it depends on how the battery has been treated since it was new - ie. has it been through a deep discharge, physical damage due to a very rough ride or never maintained (even for most 'maintenance free' battery, maintenance is needed for long life)?

Take the car in to almost any place that sells batteries and get a load test done to check how much CCA it has left.
The car is under warranty still and going to see the dealer the end of this week.