Thats pretty cool for searching for batteries. Reasonably cheap too.

I am testing boat with Turnigy nano-tech 6600mah 2S2P 65~130C Hardcase Lipo Pack (Borrowed from a friends car)
Tomorrow night to see if they can keep up. Will series 2 packs to get 15-16v and see how it goes. only $48.90 each at hobby king. 3 of these in series could be an economical way to do it.