I hope that someone at Microsoft is reading this. This problem is a major bug that could end up with another Hardware Microsoft Adventure failure. Instead of sending polls asking whether the battery problem is a problem, put your mind to solve this issue!
Another hint: This problem happens when my battery level is nearly 30%. Before, I was able to use it for al least +- 5 hours of video streaming. After that, it happens more frequently as the battery is out. After 17%, it is almost impossible to use it.