Battery health and restarts

[pkts]

I have an SE that has been awesome until I upgraded from 10 to 12. My battery health is 90% and I had a restart this morning (at 13% battery) when I switched off airplane mode. Phone is telling me that it had to restart due to peak performance issue. A 1 year 4 month old battery with 90% health seems an odd candidate to have this issue ? I'm curious what other people's experiences have been. Guess I'll get a new battery soon. My iphone 6 that is 3 and a half years old (original battery) is at 91% health and never restarted once.

Also curious what highest battery health % someone has had a restart with ?

 

[C DM]

I have an SE that has been awesome until I upgraded from 10 to 12. My battery health is 90% and I had a restart this morning (at 13% battery) when I switched off airplane mode. Phone is telling me that it had to restart due to peak performance issue. A 1 year 4 month old battery with 90% health seems an odd candidate to have this issue ? I'm curious what other people's experiences have been. Guess I'll get a new battery soon. My iphone 6 that is 3 and a half years old (original battery) is at 91% health and never restarted once.

Also curious what highest battery health % someone has had a restart with ?

Battery capacity percentage is just one of the readings (although one of the more important ones) that goes into battery health.