Apple's discounted $29 battery replacement service is limited to one repair per iPhone
iPhone 7 Plus Battery Replacement - iFixit Repair Guide
Apple iPhone 7 Battery Replacement || How to Remove iPhone 7 Battery || iphone 7 Disassembly - YouTube
iPhone 7 Plus Battery Replacement - iFixit Repair Guide
Amazon.com: Upgraded Battery for iPhone 7 Plus (5.5"), High Capacity Replacement iPhone 7 Plus Battery A1661 A1784 A1785 with Professional Repair Tools Kit : Cell Phones & Accessories
iPhone 7 Plus teardown shows 2900mAh battery - GSMArena.com news