who can offer me a better price for Desire Power lipo batteries?

Hi guys,
Fews day before, i bought two "Desire Power" V8 series 6S 2250mah 35C lipo batteries for my flight from my local shop, after testing, i found it is better, but the price is a little high as thund power, i want to buy more ones, who used this brand? what about your local price? could you offer me a better price as reference?

sorry, guys, i type it with wrong, it is V8 series two 3s 2250mah 35C,