Apple has determined that a very small number of iPhone 6s devices may unexpectedly shut down. This is not a safety issue and only affects devices within a limited serial number range that were manufactured between September and October 2015.
If you have experienced this issue,Apple has provided this link where you can enter your iPhone 6s serial number to see if it is eligible for a battery replacement, free of charge. If you do qualify, please contact Connecting Point SERVICE. We are fully authorized to take care of this battery replacement issue for you.
Apple may restrict or limit repair to the original country of purchase.
If you believe your iPhone 6s was affected by this issue, and you paid to replace your battery, you can contact Apple about a refund.
This worldwide Apple program doesn’t extend the standard warranty coverage of the iPhone 6s.
The program covers affected iPhone 6s batteries for three years after the first retail sale of the unit.