iPhone 13 mini - what does a typical day with 77% battery health look like?

How long does an iPhone 13 mini with 77% battery health last on iOS 26?

Let’s just say it needs a trusty companion, the MagSafe Battery Pack.

Here is my (typical) log from a few days ago, with less than normal usage:

1. 5:30am - 100% battery

2. 6:32am - 77% battery

3. 12:18pm - 20% battery

4. 12:19pm - Dropped to 15%…attached MagSafe Battery Pack

5. 1:05pm - charged to 76%…detached MagSafe Battery Pack

6. 4:55pm - 17% battery

7. 4:56pm - 9% battery right after connecting MagSafe battery pack.

8. 6:00pm - 50% battery with MagSafe Battery Pack drained.

9. 9:07pm - 23%

10. 9:08pm - 14%

11. 9:09pm - 2%

12. 10:00pm - Dead iPhone, right before I was about to cast something to my Chromecast.

Apps used: Safari, YouTube, Messages, X, WhatsApp, Files, News.

Nothing taxing. The phone does run smoothly most of the time, but it does start to hiccup and slow down as the charge level drops. Other times, it will hiccup even when the battery is nearly full, probably because the phone is a bit warm from charging.

Again nothing taxing, just basic apps. No gaming, no 3D rendering, and no camera usage.

The main issue with poor battery health is predicting how long it will last when it is low on battery. My battery collapsed from 23% to 2% in less than two minutes, but it lasted almost an hour.

In the end, I am able to get a full days use out of it from 5:30am to 10pm when I go to work with a fully charged MagSafe Battery Pack. On a vacation day, I would need to keep a charger close by. It’s time for a Genius Bar appointment to get the battery replaced.