Church Cannabis' rechargeable, adjustable 900mAh, 510 thread, surge-protected battery might just be the second coming of batteries. You don't need faith to believe in this higher power, because it'll smack you right in the mouth. How to Use 1. Thread USB charger onto battery. Plug charger into usb charging portal for 2 hours to fully charge before first use. 2. Click power button 5 times (quickly) to turn on/ off 3. Click power button 3 times (quickly) to change voltage to desired setting. Available Power Settings 3.2 volts Blue Light 3.7 volts Yellow Light 4.1 volts Red Light 4. Press and hold button to activate. Enjoy!