The tremor was manageable until about 1991, worsened rapidly after that. Could not tolerate Bromocriptine. Device is on all the time. I used to turn it off at night but no longer do as I've grown used to a good night's sleep and can't sleep if it's off. Twenty-four hours a day.
Batteries are like pacemaker batteries and have to be changed through surgery.
Currently, they are expected to last 3-5 years. The surgery for changing batteries can be an office visit, is more often overnight in the hospital. It is the same procedure as that for changing pacemaker batteries. Thanks for sharing with us. Glad to answer.