2018 Outback with excessive battery drain

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2018 Outback with excessive battery drain that results in a dead battery (even brand new) within 7 to 10 days of left parked either in garage or at airport while on a business trip. Now on our 4th battery and Subaru dealership where vehicle was purchased new has provided no solution except drive it daily for a minimum of 45 minutes or apply a maintenance charger to the battery each night. Remote start and rear wiper no longer works as well as the power windows. Subaru dealership has been of no help with this vehicle.
 
I think there's a service bulletin. Something to do with Starlink or some such trying to use an obsolete cell service draining the battery in short order. The dealer network should know all about it. If not you've got enough info to search it out now.
 
I think there's a service bulletin. Something to do with Starlink or some such trying to use an obsolete cell service draining the battery in short order. The dealer network should know all about it. If not you've got enough info to search it out now.
Thank you!
 

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