USB charger at the monitor was not working, however I was able to use the power outlet under the seat. Somehow I didn't know there was a power outlet under the seat- I couldn't see on the display menu to show me this power outlet. I asked the staff if I could change seats and she told me there was an outlet there. (The outlet doesn't have a USB outlet however, I had my adapter so this saved me). I thought this issue was important to mention because I'm recovering from a concussion and am sensitive to noise- so I brought noise cancelling headphones that needed charging. Its a lot more relaxing with the headphones on.