Hi, @martyk. @ifetimepain here. I have the Nevro SCS and it has to be charged daily, takes 20-30 mins. You also have to charge the charger by plugging it into the wall at bedtime. In the mornings, I unplug it from the wall, put the paddle behind me on top of the device, and when it finds the device (takes a bit of shifting around) you'll see 1, 2, or 3 circles light up - kind of like the bars of cell phone reception. Then you just sit there till it beeps at you. The rechargeable implant should last 5-10 years.