I do agree with you from a price stand point, that is hard to compete with. Not trying to scare anyone or knock you but when i see these prices from your link I think "cheap for a reason." Check this link.
http://www.rctech.net/forum/electric...rds-lipos.html
Your really not allowed to post prices on this forum but for a little less than boubble the first link you can get a 6000mah 60c battery. Just check out the warranty and what is diffrent about this battery and the support you will recieve. I know there is lot's onf posts on that thread but if you don't find the answer you are looking for send Neu Racer a PM.