Hi there Mel (aka BumpyRide), my name is Sue and I had my permanent implant of the Nevro Senza done on 12th April in Perth, Australia. My battery site is enormously painful. I am also experiencing that excruciating ripping pain and a horrible intense burning during and for 12 hours (plus) after charging. I am so disappointed as my trial was amazingly successful. I just saw my surgeon who has just said take painkillers and try to persist with charging "through the pain" as it will "probably" wear off with time!!