EVOD Preheat Variable Voltage Battery Specifications:
 
1. Battery capacity: 900 mah
2. Thread: 510 and EGO
3. Charge voltage: 2.6~3.8~4.2V
4. Protection: short circuit / overcharge/overtime
5. Button led light indication: 2.6V green, 3.8V red , 4.2V blue light , Preheating Mix light
6. Preheating time: 15s/60s
7. Twist to change voltage
8. Two clicks to preheat