Battery capacity:650mAh/900mAh/1100mAh

Full battery can keep:Up to 900 puffs

Charge time:3-4 hours

Battery life:more than 300 times

Normal working voltage:3.2-4.2V

1.No tar and other carcinogenic substance. 
2.Harmless to others and the environment. With no danger of second-hand smoking. 
3.Smoke in public places, busses, restaurants, planes etc. Does not emit any smell. 
4.Enable smokers to abstain from smoking non-painfully. 
5. Save the smoking cost of nearly 80% each year. 
6.No ignition and no fire hazard.