Chosen Solution
My S9+ (G965F), is now 2 years old and the battery is really bad. I would like to replace it myself, but the European iFixit store does not sell replacement batteries for the S9+ but it does sell for the S8+. Would there be a reason not to buy the S8+ battery for a replacement?
No, you cannot replace the battery with an S8+ as it has a physically different size. There’s other websites like Mobile Sentrix, Mobile Defenders, Injured Gadgets, and Group Vertical that will have the battery for your phone. I’ve personally used those suppliers for my business doing cellphone repair.
I think not no matter that both are 3500 mah of capacity. The S8+ the battey is taller and the S9+ the battey is wider. Just order original one from eBay for example or some local store in your country.
