getting replacement battery iPhone 6

Read these:

A Message to Our Customers - Apple

iPhone Battery and Performance - Apple Support

Then do this: Genius Bar Reservation and Apple Support Options - Apple

RebbaA wrote:

4-5 week wait for a battery at the Apple Store.

You'll just have to wait. With 500 million phones eligible for the battery replacement from Apple, pretty much all battery manufacturers are working to fulfill Apple's demand. That means that a battery that you get anywhere else will be much lower quality or old stock.

In addition to the fact that if anyone other than Apple replaces the battery you lose all Apple support going forward, both warranty and out of warranty service.

You need to go power mac center for assessment they need to run test if u need to replace battery and they will tell u other issue of ur phone, of u have waranty u dnt need to pay for diagnostic test but if thats out of warnty u needs to pay, but u needs to be alert and u needs to know about the performance of ur phone, i have prob now with my iphone6 after the power mac replace the battery it works for 2months but i notice after 2months its easily drain again i went back to power mac and they told me battery is damage or battery fail battery inflates, after they open my phone my battery pin or connector was damage or burn, now they cant do something this out of warranty my iphone6 got damage after they replace the battery.

RebbaA wrote:

Thank you. I will tough it it out until I can get a battery at the Apple Store

I understand how frustrating it can be to wait for weeks, when Amazon will deliver the next day most of the time. I come from a time when mail ordered merchandise took 4-6 weeks to arrive, so I can sympathize. For that matter, something I ordered 6 weeks ago is still sitting in a shipping center in Hong Kong. At least I can now track it, not that it does me any good 😉

Apple and Authorized Apple Service providers. Make an appointment before you go.

There's a lot of demand for them because of the reduced price.

If power mac center is not an Apple Store or Apple Authorized Service Provider going there is a very bad idea, as you have discovered.