Hi-Po Twenty Lipo pack

I was in a crunch for a 4S Lipo pack, and my LHS happened to have a 4S pack that was labeled "Hi-Po PQ4400SP-4S" and on the back the label said "Twenty." It is wrapped in black shrink wrap and the cells appear to be spaced for cooling. I can see this through the circular holes in the wrap.

I did some checking and can't find any real info about these packs. What I have found is that there are several vendor sites and a few forum posts regarding Polyquest and Hi-Po packs and mention them as if they are the same thing. I've also looked around and can't find anyone selling this particular pack any longer. I've also seen Polyquest, Hi-Po, and Hyperion use brand names used interchangeably.

What I'd like to know is if this is actually a Hyperion pack. Where can I get more? Do I really want more? The reason I ask is that I was reading up on chargers and found the manual for the Hyperion EOS 1210i. What I found interesting is that the manual states that all Hyperion packs ever made can be charged at 2C and that the 1210i would do this. Can I charge this pack that I have at 2C?