I bought a Macbook Air battery replacment here at https://eshop.macsales.com and it didn’t work very well at all. Just take it from me and don’t waste your time. Try sticking with Apple-brand replacement batteries only.
Two main issues:
- I had longer charge for about 1-2 months. After that, the battery life was just as bad as the one I replaced. I secretly wonder if Apple products are programmed to decrease battery life at some point.
- I lost the ability to see how long it would take to charge.
- My iPhone 6s which had an after-market battery replacement at an approve Apple repair shop is doing just fine.