Can anyone suggest a good, high discharge stand alone balancer.

I've got great charging equipment, and its not as much for me as to help fellow racers, when they get into trouble.

I'm looking for a stand alone (plug the battery in, no AC or DC power) balancer.

I'm looking for as high discharge rate as I can get.

Would like 2S-6S operation range

Have Hyperion balance boards so if it works with them great!!!!

Also anyone know the name or type of the plugs used on the Hyperion balance board extension cords??? I'm thinking of making longer extensions.

Thanks
Kevin P.