Having owned a (used) 2010 Legacy for many years with zero issues, I recently updated to a 2019 e Boxer Forester. A very nice car - except for the battery issue, which is rather draining my considerable reservoir of brand loyalty.
At present I'm not not able to use the car and my brand new battery has completely discharged within a month - its predecessor was pronounced dead by the RAC, as well as being the wrong type for the car.
Until I'm back on the road I'm thinking that a battery isolator would be a pragmatic solution - any recommendations?
Also I'm assuming that I just need to isolate the main battery - i.e the one on the left (i.e passenger side on a a RHD vehicle). That battery has a sticker on the positive terminal cover that says it is the only one to use for jump starting.
Thanks everyone!