I guess it depends on your smoking habits and how long you puff per session, because I smoke all day with my Vapornine ecig. Like i mentioned I go all day without a recharge. Im even too lazy to bring along my extra battery.
Great, yea I only have 2 510 batteries that I am charging constantly (vEppo510's) which I like, but the charging is twice daily on average. Good to know the mega will take regular 510 stuff. Might go with that. Gonna see if they have a pcc for a mega. That would be very useful! p.s. what are those cool curvy looking lip pieces on your e-cigs?
I'm a newbie and I love my 510. I HIGHLY recommend getting a complete second set (2 bats, 2 attys, 5 carts, charger). Having 4 batteries is key, and having the backup equipment gives you piece of mind.