I just had some time searching in the wide, wild Lipo section of Hobbyking for something new. And I found these:
Currently out of stock, but I think this would be one of the cheapest and best ways to build a pack!
6600mah 2S 65~130C for 21€?? What??
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What are you guys currently buying, Lipo-wise? Have you found something similar?
It is not much cheaper (imo)…
VTC6 ~ 5€ - 3120mah 2S2P = 2S 6240mah 2S * 2P = 4 cells 4 cells * 5€ = 20€
So the difference is not that big…
PS: i have bought Zippy Flightmax 6S 8Ah ~ 60€ (when it was discounted)
You´re right, but I´m only talking about Lipos here.
And I have my next Trampa 8S setup in mind, so I need cells with at least 300A discharge rate (two 150A 8S ESCs).
So these high discharge cells are really unique for that pricetag 
Nano Tech: 2S - 6.6Ah - 21€ –> 6S - 6.6Ah - 63€
Graphene 6S - 8Ah - 55€
I would highly recommend going through the bargain bin at hobbyking 
still only 15C!
Like I said, for people who needs juice on command 
Put 4 in parallel and you are good to go 
But yes, you are right. I should have read it more carefully -.-"
Just saw, the 2s2p nanotech is in stock again for EU peops! 63€ for an awesome 6s2p with 6600mah with tons of power!