This variable voltage battery by Vuber is all you need to get the concentrate party started. 510 threaded so it will work with most pre filled cartridges and attachments out today while not breaking the bank.
The Pilot has a pre-heat feature to get you warmed up and 3 heat settings, low, medium and high. The Vuber Pilot battery also has a nice aesthetically pleasing look. Comes with a charger.