A handy thing for those who do not like or are tired of using batteries. The only significant drawback is that the charge on the Xbox itself is not correctly displayed, so the gamepad can turn off at the most inopportune moment without warning. Which can be a problem for those who spend a lot of time playing games. I find it difficult to answer by the time of use, but there are definitely enough hours for 5 batteries. With full discharge, I was too lazy to take measurements.