Turnigy boat spec lipos

[jamespl]

Just seen these designed spesificaly for boat applications.

http://www.hobbyking.com/hobbyking/store/%5F%5F24309%5F%5FTurnigy%5Fnano%5Ftech%5FA%5FSPEC%5F6600mah%5F2S%5F65%5F130C%5FLipo%5FBoat%5FPack.html

[electric]

Wondering if these are any better.... I am a fan of the turnigy batteries in general, but I am slowly switching over to the hyperions because they are so rock solid. Still, always looking for something strong at a goood price point.

[785boats]

I wonder why there are no decent sized 4s packs? 2200mah is the biggest.