My vote goes to Rhino 3700mAh 25C 600g. I had them on Angel with A5016S and 16x10 prop. Flying time 7-8 minutes without any problem. Rhinos have proved them self over and over again.</p>

http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=9341</p>

Velco</p>