Congratulations! You just modified the MacBook Power Adapter to be capable of recharging the HyperJuice battery directly.

To charge a first generation HyperJuice battery, plug the male connector from the Large Magic Box into the CHARGE port on the HyperJuice battery.

To charge a HyperJuice 1.5 or HyperJuice 2 battery, use the short male to male cable that came in the kit to connect the Large Magic Box to the DC IN port on the HyperJuice Battery.

The female connector has the higher voltage required to change the newer batteries.