Take Advantage of Apple's iPhone Battery Replacement Program – ComputerCare
Here is how to find out if your iPhone 6s is eligible for a free battery replacement
How To Replace The iPhone 6's Battery
Amazon.com: [Upgraded] Battery for iPhone 6S, (New Version) BOANV Ultra High Capacity A1633/A1688/A1700 Battery Replacement with Professional Replacement Tool Kits : Cell Phones & Accessories
iPhone 6+ Battery Replacement | MobileiPhoneGuy
My DIY iPhone Battery Replacement Was Easy. Here's What I Did. - CNET