Earlier quoted context omitted.
Yeah, it's obviously snake oil. If you had a technology that increased the charge-cycle lifetime of a battery by any substantial amount, you wouldn't be marketing a stupid plastic box for mactards. You'd be cashing billion-dollar checks twice a day.
if you read the article, you'd see they're working on OEM deals to get the tech into batteries across the board. The Box is just a nice consumer demo so people can get their hands on it now. Actually a pretty smart PR move. Also, the patent: https://www.google.com/patents/WO2013142964A1
The patent is proposing they're going to use capacitors/inductors to do some type of pulsed battery charging/discharging while not connected to AC power. The thing is, there's no room to move on that - you're absolutely at the mercy of the quality of those cells, since you need all of them all the time when you're running on batteries.
Worse, if you have say, 3 strings of 3 like in a laptop, and you shut-off 1 string, then you're increasing your current draw from the remaining cells and losing more power to internal resistance.