I want to buy a 2200mah Lipo. while all other brands Lipo are out of stock i found QK lipo in stock on Quadkopters.com. So I want to know the quality of this brands lipo. Guys Help me Please...

Something tells me QK stands for QuadKopters? I may be wrong but seems like the brand is the seller itself.

Turnigy produces some good ones but are overly expensive . Zippy's batteries aren't really worth the price
The quality of a battery depends upon its Discharge rate ..... 20-40C discharge rate is pretty good and you can as well consider Haiyin , they make good lipos for cheap ............... some of Haiyin's batteries are better than Turnigys'

@akush. its ok. the QK LiPo's are good. ive used them and they've given a good performance. quadkopters.com is trusthworthy and safe to buy from so no need to be worried..

We do have Turnigy 2200mAh 3S 20C Lipo Packs in stock:
http://www.ebay.in/itm/201321977440

@Pradyumna Hatwar: Please point to a link/store for the Haiyin lipo you mentioned above.