You can charge each 510 battery approximately 300 times.
The 510 will hold a charge for 2 to 3 smoking hours (It does not use/drain the battery when the unit is not in use.)
The initial (Very first) charge needs to be 4 hours to set the battery. After the initial charge it should take approximately 2 hours to charge.
This kit comes with everything you need to start "Vaping."
When choosing between the Manual and Automatic kits it is important to know that
the Automatic batteries use the pressure created when you inhale to activate the
atomizer. This means there will be a slight delay when you first inhale. For those
with respiratory issues such as COPD, Asthma, or just decreased lung capacity the
Manual unit may be the way to go. With the Manual unit you simply press a button
to active the atomizer and vaporize the E-
Many of are customers find they receive a deeper and more satisfying puff with the Manual unit. However, Many customers find the Automatic to be more like a traditional cigarette because they simply puff with out hitting a button.