Bauway 650 mAh 3.7 volt standard output battery
This battery has a 5 click on-off safety feature. Click the button 5 times very fast until the button flashes and the battery button is turned on or off to prevent the battery from burning up the atomizer/cartomizer and running the battery power down. Press the button 5 times again and the battery works as usual.
The color of the LED light around the battery denotes remaining battery power.
White is 100% - 80%
Blue is 80% - 40%
Red is under 40% - needs to be recharged