My galaxy note 4 device not charging properly, when I plug it and the battery(1) go down from 50+ to 10+ , if the battery is below 30 it automatically switches off, and it will only turn on after 2-4 times of pressing power button. I tried changing to another battery(2) but the phone keeps turning on and turning off continously.when charging the screen shows charging icon ⚡ and then it blinks continously ⚡ ⚡ ⚡. I don't know if it's the problem of battery or phone or(battery analysis) but not the problem of cable or adapter (it's new) hope you will know the reason ^_^