Truthfully I found this a difficult question to accurate answer because it would depend on the amount of surface area and the quality of the 2 connections. But some simple reverse WPC engineerinng, 4-8Amps. Those are the largest fuse in on WPC89/95 driver board. I do know they double up on some wiring but I think that is related to the transformer connectors. Finally, the wire gauge and type (stranded or solid) will also determine the current capability.