This I"m not sure of. I have no actually tested the line to see how it is pulling power from the battery. But, I'm sure you have a volt meter, so you can check. Connect up a 2s pack and read the voltage at the end where it plugs into the goggles. Then, plug in a 4s pack and read the voltage again. If it is showing full voltage of the pack, then you can just cut off the balance plug connector and solder on an XT60 connector.