- 1600mAh battery life - Variable voltage dial (3.3V-4.8V) - Built-in battery charge indicator (fire button indicator turns blue when battery is below 60% and orange when battery is below 30%) - Upgraded PCB circuitry provides short circuit, extended firing, low voltage and over-discharge protections - 5-click on/off function - 510 and eGo threading to tank - 510 threading to charge