NHTSA Complaint #11450530 — 2017 SUBARU OUTBACK

The battery has started draining while sitting in a garage overnight. I had the battery replaced on 01/27/2022 at a reputable repair shop since the 2 year old battery was dead. This is the 3rd battery placed in this vehicle since I purchased it new in August, 2017. The charging and electrical system were checked every time and found to be working OK. The new battery drains overnight while the vehicle is sitting in a garage. I have placed a trickle charger to maintain the battery. However, I removed the charger and monitoring the voltage with the vehicle just sitting in the garage I see the voltage steadily dropping. Measurements as follows: Immediately after driving over 50 miles (11:25 AM)- 13.30 volts (13:20 PM) - 13.20 volts (16:00 PM) - 12.84 volts (18:00 PM) - 12.74 volts (20:00 OM) - 12.64 volts (05:30 AM) - 12.25 volts I have verified that there are no lights left on and everything is turned off while parked in a garage.