Ive changed the batteries on about half a dozen iPhones for myself, family and friends. I think the most recent was a 6s. The third party kits are cheap and it

Ive changed the batteries on about half a dozen iPhones for myself, family and friends. I think the most recent was a 6s. The third party kits are cheap and it only takes 5 or 10 minutes to check a video or two and 5 minutes to do the job. I don't understand the fuss about glue, for the phones I worked on it was just a small blob of tacky gel that came un-stuck and then re-stuck again pretty easily.