The equinox balancer is the same thing as a hyperion lba balancer, I have 2 of each and they are identical in operation and connection. The only prob is that the eqinox comes with eflite adapter harnesses. You would have to purchase this:
connector page The first item is what you want, it will allow you to plug the elite battery into the balancer. Make sure that you choose the polyquest tap option when buying the batteries, it is the same as the hyperion.
On a side not, those batteries are most likely as good or better than maxamps 5k packs. If you really want a good set of 2s packs buy the trakpower hard case lipos. They are 120 each, but well worth it. I tested them back to back with a pair of maxamps 5k 2s packs and there is no comparision.