Where have you been for the last three weeks? Climbing Mount Everest? Your abysmal ignorance is not my problem. Ive posted the explanation of a chemically depleted battery many times; Im not going to do it again for you. Go back and read one of the previous posted explanations.
Apples $29 is more than competitive when compared with the Samsung Galaxy Note 8 battery replacement service at $94.95. Amazon sells the OEM battery for that model
by itself for $28.00. . . And you have to do the replacement yourself. No warranty.
Just more ignorance on your part.
Appes regular price was $79 for a replacement battery which is highway robbery. The Note 8 if it is that price as you mentioned is also ludicrous which is why I will probably get a phone that specifically allows a replaceable battery when/if my Galaxy S5 dies. I got an extended battery for mine for under $20 and it is practically 3 times the capacity of the OEM Samsung battery. A full charge will last me 2 1/2 days minimum before getting under 5% but then I could stretch it out another day if I was stranded somewhere in ultra power saver mode.