At the time, battery replacement from Apple or an authorized dealer was $69. https://support.apple.com/iphone/repair/battery-replacement https://support.apple.

At the time, battery replacement from Apple or an authorized dealer was $69. https://support.apple.com/iphone/repair/battery-replacement https://support.apple.com/iphone/repair/battery-replacement There is no “DRM” in their battery. If you had the wherewithal, you could do it yourself https://www.ifixit.com/Guide/iPhone+6s+Battery+Replacement/56607 https://www.ifixit.com/Guide/iPhone+6s+Battery+Replacement/5... The units weren’t “faulty” all batteries degrade over time.