Mstrplmbr,
I had a Medtronic implanted back in Aug. I had severe shoulder, arm and neck pain along with daily migraines. The tens unit would help some with my shoulder pain but nothing else. Now that I have the stimulator my headaches are gone. Not 1 headache since. Arm pain gone! Shoulder pain was helped about 50 to 75%. Deep neck pain still comes and goes, seems like weather has a factor. My battery is in the love handle area on my back side. 3 months ago I was a desperate man. It was worth it just to get rid of the headaches. I charge mine every 2-3 weeks. I haven't been on this site for awhile but the people are very nice and helpful. I'll check back more often. Have any questions, please ask.
Showdy