Low power mode on VS off bug

Low Power Mode reduces CPU and GPU performance, so demanding tasks (think buggy and non-optimized third party apps) run less aggressively. Lowers screen brightness and shortens Auto‑Lock to about 30 seconds. Limits the display refresh rate to up to 60 Hz on ProMotion devices. Turns off or reduces some visual and motion effects and animated wallpapers. Pauses or disables background app refresh, discretionary background networking, and many background tasks. Turns off Mail fetch (so mail is checked less often unless it’s push). Pauses iCloud Photos syncing and automatic downloads like app updates. May reduce some radios/5G use, except when needed for things like streaming on certain models.

I think considering the apps you’re using, it’s the throttling of the CPU and GPU that are making the most impact on preserving battery capacity.

What apps are your top 5 for battery capacity usage? Have you updated those apps lately. Some updates for popular social media apps need to be deleted and then updated.

What iOS version are you using? If you’ve not already done so, please update to iOS 26.2.1.

Instagram has been updated 11 times in the last month, most recently yesterday. WhatsApp has been updated 8 times in the last month and 5 times in the last week, most recently 20 hours ago. X has been updated 18 times in the last month, 4 in the last week and most recently 16 hours ago.

Every single update is for bugs, performance improvements and optimization. These are not bug free, quality apps. They are inefficient and kill your battery life, slow down your iPhone and may cause poor performance when they have memory leaks or run in the background when they should be sleeping.

Until the developers publish fully optimized apps, you’ll need to turn on Optimized Charging, plug your iPhone in every night and charge to 100%.

Adaptive Power uses on-device intelligence (no cloud or server processing) to track your daily charging and usage patterns for about a week before it starts working effectively. It predicts when your phone will face heavier usage and proactively applies subtle optimizations, reducing power draw only when needed. Unlike Low Power Mode, which sharply reduces performance and background activity when your battery is low, Adaptive Power continuously and intelligently tunes power use throughout the day.

I've found that Adaptive Power is excellent at managing battery life.

Use Adaptive Power to extend the battery life of your iPhone - Apple Support

i need update my iPhone7

So what’s the question?