is it at all possible to increase my iphone 7 low battery warning to 50%?

You can’t officially change the low battery warning on an iPhone (like your iPhone 7) to pop up at 50% 😭. Apple’s built-in low battery alert is hard-coded to appear at 20% and again at 10%—there’s no setting to change it to a higher number like 50%.

BUT 👀 here’s a workaround :

✨ Workaround: Set Up a Custom Battery Alert at 50%

You can use the Shortcuts app to create an automation that notifies you at 50%.

🧠 Here’s how to do it:

Open the Shortcuts app (download it if it’s not there).

Tap Automation at the bottom.

Tap Create Personal Automation.

Scroll down and choose Battery Level.

Slide to Equals 50%, then tap Next.

Tap Add Action → choose Show Notification.

Customize it like “Battery is at 50%, charge up!🔋💖”

Tap Next, then Turn off “Ask Before Running” (so it runs automatically).

Tap Done!