I would go with a little bit more $ and get the Power lab 6 as it will cover your needs and have room for a bit more
Revolectrix Cellpro PowerLab 6 Battery Workstation (6S/40A/1000W)
http://www.amainhobbies.com/product_...n-6S-40A-1000W
look around as I have found a bit better pricing on them