The Joye eGo-T battery comes with "5-click protection". Generally, the battery is shipped in the off position. In off position, the eGo-T will not function even when pressing the button. To turn on battery, press manual button 5 times within 2 seconds. You will see white LED flash. To turn off battery, press manual button 5 times within 2 second as well, the white LED will flash.
Joye eGo-C battery comes with a power display function, "5 click protection", and lithium battery protection. The double air circulation system provides a realistic feel every smoker will enjoy. The power saving battery features improved power conservation and prevents accidental discharge. The output voltage is 3.3+/-0.1V when it's driving the atomizer (load added).
Power display function: When the battery power is over 50%, the battery LED is white. When the battery power is between 10% and 50%, the battery LED is sky blue. When the battery power is below 10%, the battery LED is blue.