If you would like to review the function of them that would be great. I've pulled one out to use myself but haven't had much time with it yet.
So far, it appears to work like the standard eGo-C battery. On/off functions, improved safety, etc.
New feature requires a 5 second hold of the button. Once that happens, the LED changes to orange and the battery will deliver max power instead of the steady regulated 3.3 volts. Can't dial it midway, like you can with the eGo Twist....but instead turn the hose on full blast (so to speak).