That pack would work, but your motor is rated for 10-18 amps and 22 amps peak, and that pack is rated for only 15 amps continuous discharge so really you'd want to go with something different as you risk frying the battery if you got a spike.

Honestly I doubt it's any better than what you've got. Those cheap Li-Po's assembled in China suck, your best bet would be to get one of the 2000mah 3s Thunder power Li-Po's or one of the Kokam 2000mah 3s Li-Po's.

http://www.hobby-lobby.com/thunderpower.htm
http://www2.towerhobbies.com/cgi-bin...?&I=LXHFG2&P=7