Chosen Solution

I have a Model A1633 I see battery kits, I want to try, I’m a retired old 80-year-old electric tech and would like to try it, did harder stuff in my time but I’m very confused, I see 2 kits for 6s I did the ID check, must be me, my old brain, can some one tell me which kit to purchase, please oldgab

there is no differentiation between A-model numbers in the 6s family. any battery that will work in one 6s, will work in any other 6s. the A-model codes designate storage size and radio types (GSM, CDMA, etc) - both of which are related to the motherboard in the phone. aside from the motherboard, all parts between a model family are fully interchangeable.

You can buy the iPhone 6s battery kit here.