You need to go into FULL…
You need to go into FULL COURT PRESS :
1) Remove that stupid foam insulating "box" from around the Lawn Mower Battery ;
2) Buy a 900(+) CCA Battery (WalMart @ ~$100, not those hideously over-priced Subaru's)
3) Disregard ALL Subaru propaganda, they constantly flood the world with useless "info" !
4) Keep your Battery in DeSulphated State by using a (EBay) Battery Maintainer;
5) Subaru's constant Chronic UNDER-CHARGING destroys batteries by allowing un-corrected Sulphation of the Battery Plates; use your Battery Maintainer over weekends.