The Ego C-Twist 1100mAh is an affordable and compact variable voltage battery. By twisting the end cap, voltage can be adjusted from 3.2 volts up to 4.8 volts. In addition to the voltage flexibility, the Ego C-Twist offers quite a few safety features. Pressing the button quickly 5 times will lock or unlock the battery.
The blinking LED will indicate that you have successfully switched modes. When in lock mode, the button is disabled and the battery will not power on. If a short is detected, the battery will shut off automatically until the short is removed.