Why is my Moto X 2nd Gen unplugging whenever I pick it up when its charging?

[r15stu31]

Every time I charge my Moto X, I like to pick it up and use it every once and a while and whenever I do that, 9/10 times it stops charging and I have to either take it out and put it back in or sometimes just push it back in. Some times when i have it on a flat surface it doesn't unplug but other times i hardly touch it and it stops charging. I think this may be affecting my battery life too. I'm not sure if something is broken maybe and I should go to Motorola or if it is just me. On a side note ever since my brother got his new phone, my WiFi at home seemed to make my phone slow down a ton. Please help both problems I am really mad at this point thanks in advance

 

[belodion]

Welcome to AC.

A faulty USB lead perhaps, or USB port?

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