Chosen Solution

Many reviews of replacement batteries being bought from other makers, distributors, etc are saying that they replaced their battery for what seemed like a good price, only to find out that the Turbo Charge feature no longer works. I’m trying to make sure this doesn’t happen to me after buying a new battery from ifixit.com

@khiggins61 two things you can try. Buy the ifixit battery and see if it works for you. If not you can always return it. The other thing you could try is to contact the sales people of iFixit by using one of the methods listed here https://help.ifixit.com/collection/130-c