If you have an iphone 6/6plus etc, you only have a few days left to take advantage of the 29$ battery replacement. You can fill out a form, choose a local UPS store, get the email from apple authorizing the replacement order, take the phone to UPS, show them the email... and they will send it off immediately. You should get phone back in 5-10 days per apple. https://support.apple.com/iphone/repair/battery-power "Take your product to The UPS Store and show this email to the representative. Your Repair ID should be available in the UPS system within an hour of the time you requested service. If UPS has no record of your Repair ID, wait a few minutes. Send us only the product itself. If you include any accessories with the product, we won't be able to return them to you. UPS will supply the packaging, ship your product using the Apple Corporate Account work order, and not bill you for the transaction. "
If you don't want to stand in line at an Apple Store for your iPhone 6 battery replacement, there is an easier method by mailing it in.