Beta 7 battery life check-in.
15PM with 87% capacity after 388 cycles.
I was getting stellar battery life on iOS 18.6.1: nearly 1 hour of active use per 10% battery drain, or about 9 1/2 hours total.
Installed DB7 Monday when it released. Didn't bother looking at battery life for the first two days.
So far today: 3.5 hours screen active time, depleted 50% of battery charge, which extrapolates to 7 hours total. (with adaptive power turned on, btw)
This includes tracking a 30-minute bike ride in the workouts app. Prior to the ride, the ratio of active use per hour of battery depletion was a bit higher.
So, battery life okay but not great, even considering my phone is 2 years old.
But we're still in beta. In the past, my iPhones' battery performance improve an hour or so per full charge between the mid-August beta and the public release of the next big iOS version about 4 weeks later. I expect that'll be the same for iOS 26. If I can get 8.5 hours on a full charge I'll be happy, given my phone's age.
But this year it doesn't really matter for me. I'm gonna buy a 17P or PM as soon as they're available to order.