been cold here and i can tell the battery is getting weak when starting. it's still the original battery.
if it's just a work day, then it sits in the garage while i sleep, gets driven in the cold for 13 miles (25 minute drive). sits for 12-13 hours iin the cold, then gets driven 13 miles home. so i'm hoping that is a long enough drive to keep the battery going. hoping it will last until next winter though. my brother has an '06 and he replaced his battery earlier this year.