Some of the testimonies make no sense
https://www.youtube.com/user/rossmanngroup
Edit: someone already posted below, sorry for the double posting.
Repair shops cannot stock a bunch of batteries.
To replace a battery, you must provide information to apple about the phone, then wait for a few days for a replacement battery from apple, then install it.
Who wants to leave their phone for a few days, or visit twice?
They or their vendor should just sell real batteries to anyone who wants one.
This is what happens when a short-term profit-exploitation bean-counter is put in charge to wreck a brand. Tim Cook must go.. he won the battle of valuation but lost the war of goodwill towards the brand; snatching defeat from the jaws of success.