Shut the power off when not in use.  It will stay charged longer.
This roller has given me muscle relief after some tough work outs. I weight train, run on an elliptical and take boxing classes. I especially use it to loosen up my lower back before I train. It helps allot with that stiffness. After training I use it on my legs and upper back as well.  It keep it charge for a long time. The variable speeds allows the right amount of therapy when you need it. A great purchase.
Rating: 4 stars