The last three phone batteries I replaced were glued in (well, adhesive tape) and they were a massive pain the butt to remove. Honestly, I'm not even sure why

The last three phone batteries I replaced were glued in (well, adhesive tape) and they were a massive pain the butt to remove. Honestly, I'm not even sure why they need such sticky adhesive since the case holds the battery in place. I assume it has to do with manufacturing, but really, a lot less (or less sticky) adhesive would be great for people that just want to swap out a battery.