Level 1 (4 points)

Iphone 17’s battery draining faster than usual

i have an iphone 17 which is only 5 months old, it’s battery usually lasted min 1 day like if i would charge it in the night before sleeping, i would again need the charger in the next night. but now if i charge it in the afternoon it is almost dead by night approximately in 5-6 hours only. is this because of the new update or is it like i’m charging it too much using power bank only but wired and it has an output of 22.5W.

Posted on Oct 7, 2026 7:34 PM

2 replies

Smilin-Brian

Level 10 (97,882 points)

Oct 7, 2026 11:49 PM in response to chinmaybaweja

Welcome and thank you for reaching out. 🤗

A rapid battery drain after updating to iOS 27 can happen while the system reindexes and optimizes in the background, usually taking a day or two.

According to Apple: If you notice that your battery life has decreased after updating your device, wait a few days and then check again. Even though you can use your device immediately after an update, certain tasks related to the update continue in the background and might affect battery life and thermal performance. While they're ongoing, you might see the Insight Ongoing iOS Update in Settings ➢ Battery.

If you need more help, contact Apple Support directly.

Take care!

Smiliñ 😎 Brian | Community Volunteer

Limnos

Level 10 (462,771 points)

Oct 7, 2026 7:55 PM in response to chinmaybaweja

Read Apple’s support article about batteries draining too quickly —> If the battery in your iPhone or iPad drains too quickly - Apple Support

Check the iPhone battery health and usage

Go to this support page:

Understand your iPhone battery usage and health - Apple Support

Read the section: View your battery usage information

On your device go to Settings > Battery.

Originally posted at discussions.apple.com/thread/256372242