User level: Level 1 (4 points)Hello, I have a 3rd-generation iPhone SE, and I'm having major battery issues.
For example, the phone shows 9% battery when I restart it, the level jumps from 9% to 28% without me doing anything.
Is this normal ?
Posted on Oct 13, 2026 4:41 AM
User level: Level 10 (233,174 points)Oct 13, 2026 5:02 AM in response to Bil7-5
Bil7-5 wrote:
Hello, I have a 3rd-generation iPhone SE, and I'm having major battery issues.
For example, the phone shows 9% battery when I restart it, the level jumps from 9% to 28% without me doing anything.
Is this normal ?
What you've described is symptomatic of a battery which is failing. Open Settings > Battery > Battery Health - if it is 80% or lower, the battery is failing and there is a notification that Battery Service is needed there. Once an iPhone battery goes below 80%, it's useful life has been used and you need to either schedule a battery replacement at your Apple Store Genius Bar or consider upgrading to a new iPhone if you think the time may be right. But do NOT delay having the battery replaced. Failing batteries can not only cause operational issues, but they can swell or worse, permanently damaging the phone.
See this --> Apple Service and Repair for iPhone Battery - Apple Support
User level: Level 10 (199,348 points)Oct 13, 2026 5:32 AM in response to Bil7-5
Hello, I have a 3rd-generation iPhone SE, and I'm having major battery issues.
For example, the phone shows 9% battery when I restart it, the level jumps from 9% to 28% without me doing anything.
Is this normal ?
This is hardly a "major battery issue" and is in fact, not an issue at all.
The current battery level is an estimate of the battery charge remaining at the time based on what is going on with all the apps that you have used since you restarted the phone. Although you might not be using an app or apps at the time, the apps are still running in the "background" and other "housekeeping" chores are always running as well.
When you powered off the phone to restart it, virtually all activity ceased as the phone began a new startup process. All of the apps and other chores that were active before are no longer running, so the battery estimate of remaining charge was higher than before because there was now much less going on than before the restart.
Normal and expected behavior for the battery.
Now, what are some of the other "major issues" that you are experiencing?
When was the last time that you replaced the battery?
If you tap Settings > Battery > Battery Health & Charging.......what is the current Maximum Capacity?
Originally posted at discussions.apple.com/thread/256375375