I didn’t know that about the Nevro. I do have to recharge frequently, I would say about every other day. But since it works to reduce a good bit of pain, I will gladly do it! I had not thought about it until you asked but I fully recharged it to level 4 about mid-day yesterday and when I checked it just now it was down to 2. So I could have waited till tomorrow to recharge, but I will do it tonight as I lay here reading. I only have what I would call moderate numbness. I don’t notice any difference with that since I started the Nevro.