It's fixed...and has improved each time I use it. I have a 45 minute commute and didn't lose more than 5% last week...and that was with a 5 minute speakerphone call.
Not using a Windows device. Waze kills my battery in a new android phone even while using the car charger. Without Waze the phone charges in the car. Nothing more frustrating when at the end of a 6 hour drive, as I had last week, the phone dies and the most difficult part of the drive, the last 5 miles to the actual address, have to be done blind.