Hi there. I have a my55 wrx that i don't use that often , but have a problem with the battery going flat. After i've used it the charge in the battery can last up to two weeks, other times its flat within two days. I had the same problem with my previous my02 wrx but never got it sorted. The battery is new and the alternator is charging. Is this common, can anyone help me.

 

Often turns out to be the alarm. Can you get that checked?