I bought a Galaxy S7 2 weeks back. I'm using the stock battery charger and USB cable to charge the phone. It charges normally till the percentage reaches 80-82. Then it doesn't get charged for a long duration. If I disconnect the charger and reconnec...
My phone doesn't get hot while charging. And anyway, it charges normally if I discontent and reconnect it immediately. If it was due to temperature then it should charge as slow as it previously did.