I have only put the case on the charger one time when I first got them and the battery on the earbuds have stayed full. My ONLY gripe with the sole, and boots in general, is that they seem to be more slippery than the Pittsburgh, as I was sliding around on the ice at the jobsite today quite a bit. Really, the only thing i didnt like is that I lost one. Came in brand new condition. The down side is at first they are a good to slightly small fit then after a few days they stretch and are slightly to large. They are the strap on type, so easy to wear and yet give the firmness to walk confidently. I recommend going with your true size as they fit spot on. No jogger here, but I do daily walking and know that I will always be comfortable in a pair of these shoes. Hubby said the toes were a little tight on first fit, but after about 20mins they were fine. So far, they are warm and comfy and seem to be worth the $29.