[asid61]

Originally Posted by Knufire

Found these after a quick google search: http://www.hobbyking.com/hobbyking/s...C_-20_30A.html

Spark is excellent for it's price, but if you're only doing 20A it's a bit overkill for you.

The ones you linked are mostly for brushless motor controllers, unfortunately. Hobbyking is also notorious for bad service and poor quality, not to mention 2 week+ ship times.

To OP: You can probably buy H-bridges rated for the currents that you need.