I was having a problem with mine last night. All of the sudden the battery dropped to 2% so I plugged it in for the night only to find out after I got to work that it didn't charge. I got home and put it back on and it still didn't seem to do anything even after cleaning the contacts and all. So I finally grabbed a separate phone cord and plugged it into my computer and it popped on and started to charge so I don't know if my power cord has gone bad already or if it just needed a jump from another power source to jump start it. But it's something that people may try.