The internal 800 mAh battery comes pre charged and lasts for the full life of the disposable. For the same reason, 3K cannot be recharged once the battery runs out. The light on the bottom of the device will start blinking once the device is discharged.
Our disposables can be recycled through our recycling program, once you have collected 10 or more STLTH disposables please contact us here. Learn more about our Recycling Program.