The E-Cigarette USB Charger will charge both the Lung Buddy Ego standard battery and the Lung Buddy Evod Twist battery regardless of what size mAh the battery is. 

You can easily plug the Lung Buddy E-Cigarette USB Charger into any USB port on your laptop or computer or alternatively you can plug your E-Cigarette USB Charger into the E-Cigarette AC/DC USB Wall Adapter Plug.

Unfortunately the E-Cigarette USB Charger will not be able to charge the old Lung Buddy 510 Electronic Cigarette batteries (The Electronic Cigarette that looks like a cigarette).