Do iOS betas drain battery?

iOS 15 beta users are running into excessive battery drain. … Excessive battery drain almost always impacts iOS beta software so it’s not surprising to learn that iPhone users have run into the problem after moving to iOS 15 beta.

Does iOS 13 decrease battery life?

Apple’s new iPhone software has a hidden feature so your battery won’t wear out so fast. The iOS 13 update includes a feature that will extend your battery’s life. It’s called “optimized battery charging” and will prevent your iPhone from charging beyond 80 percent until it needs to.