What are you thinking about that battery: http://www.rc-monster.com/proddetail...P-EVO25-50005S ? Flightpower is very good choise too and price is not too high, weight of that battery is not too much I think. Other choise would be this: http://www.hobbycity.com/hobbycity/s...C_-_50C_Lipoly .

So, which one do you guys agree ? Thanks !