1 (ONE) Standard Battery for the Revolver G2. The all new G2 boasts improved performance over any other 510 available. Not only more vapor, but a better hit and better flavor as well. These batteries now have a longer 20 second cutoff time which will allow you to take your hits even further. No more interruption in your vaping. The button is now a hard plastic which not only feels better than the rubber buttons, but is also a bit more sturdy and will not fall out or sink into your battery. Paired with the G2 atomizer, this is the best 510 ecig available anywhere! *DO NOT use with chargers meant for Vgo batteries.