Battery replace iphone 7

[Meczox_]

So i got an iphone 7 from my father because he bought an iphone 11 pro and i check the battery health it is at 75% but with no shut down and stuff so i called an apple authorities store kn my country apparently they dont have the battery for iphone 7 anymore they only have 8 and above which means i have to rly on a third party place i am wondering can after them replacing the battery the screen becomes unresponsive or glitches and stuff or should i just not replace the battery?

[zeusthemoose]

Battery replacement in a 7 should not cause any errors if done properly. I would recommend following an ifixit guide if you do it yourself.

[DrMacintosh]

I think iFixit sells reliable batteries and has a guide on how to do it. 

[Zodiark1593]

A reputable third party battery (like the one that can be ordered from iFixit) should work just fine. Getting first party parts from Apple is exceedingly difficult at best. 
 

The repair itself isn’t difficult and quite straightforward (separating the water resistant adhesive is probably the most difficult bit), but it’s easy to damage stuff if you rush it. Slow and methodical is the way to go.