Battery life seems to be about 10 hours. Would not recommend to give to my worst enemy. Ich mache aktuell viel Sport und nehme an verschiedenen Kursen teil, so dass ich mit dem Waschen der Sportkleidung gar nicht mehr hinterherkomme. There were some epic rainstorms along the way and I can say that this bag is completely waterproof. two of my panels were cut/sewn too narrowly, so you cant screw them together properly. Extremely comfortable but no matter what you do, the ends will just not stay in. The only problem with the towel bar is the joining sections are too loose so I had to glue them together . I wouldn?t wear them if they hurt my feet. These are so easy to clean, great for our little dirt monster. Other products in this price range (and considerably more expensive) will likely have the same issue though.