I have a little situation going on and I’m not sure what to do. I just upgrade my 10 x max to the iPhone 12 pro max. I gave the 10 x max to my 77 year old mother who is visiting me from Chicago. I currently live in Georgia. Anyway, the 10 x max battery health is at 94%. I purchased the phone 2 years ago on release day. Now my moms old phone which is a iPhone 7 I plan on giving it to my mother in law. That battery health is at 87%. I have a Best Buy appointment within a few hours and I had planned on replacing the battery in the 7. My question is do you guys think I should replace my moms 10 x max battery before she leaves tomorrow and just wait to do the 7? My mother in law does live here in Georgia so it wouldn’t be much of a problem getting it to her and helping her set it up.