LiPo packs that can discharge their rated capacity in just a few minutes have been around for a few years. They're typically used in things like RC helicopters:

LiPo packs that can discharge their rated capacity in just a few minutes have been around for a few years. They're typically used in things like RC helicopters: http://www.tested.com/tech/502351-rc-battery-guide-basics-lithium-polymer-batteries/ http://www.tested.com/tech/502351-rc-battery-guide-basics-li...