Chosen Solution
At the night ,I put my iphone on the charge and i sleep and i do this thing several times When i woke app the charge was 100% I took my phone and i play with it until the charge finished, Then when i put it on the charge it won’t charge I tried to clean the charge port it won’t charge Please help !!
Your phone may have a defective battery as Eric suggests. Keep in mind that Apple has a replacement program in place for the iPhone 6S (which suffers from poor quality batteries). Go to this website to see if your device is covered under the free replacement program. https://www.apple.com/support/iphone6s-u…
Could require a charge port replacement and/or battery replacement depending on its cycles and capacity. Have you tried a new cable and charger? Are you using a OEM Apple iPhone charger?