Variable voltage eGo Battery with LCD Battery Meter has three settings. LED ring changes color with each setting. Press button 5 times to switch between settings. Colors and settings are as follows.
Blue - 3.7 volt
Purple - 3.2 volt
Red - 2.7 volt
1100mah capacity is designed to provide long battery life between recharges.
*Price is per piece
*eGo Battery is not compatible with 510 Charger. Charger output must be DC 4.2V 420mAh