Whew! I'm happy to report that I was able to get my battery life on FP3 /e/ back up to 3 days per charge. Turns out that ambient light features suck a ton of juice. (I leave it on, but it just flashes notifications, and don't use any sensor data.) I also needed to disable mobile data standby. This is supposed to help with with connection hand overs, but it just keeps your mobile data line always up, even when connected to wifi. Just a waste. Nice to have this thing back to long battery life!
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