How to leave the battery while going in hollidays

[sibumi]

Hi, I am going to leave the car parked for 14 day how charged should I leave the battery?
Thank you

 

[EvanstonI3]

Ideally fully charged, but almost any level above maybe 40% would be fine. You will only have an issue if your 12v fails (or is currently failing) during those 14 days.