Handy if you want to connect two packs in series, but just to make you aware Dave, that one won't be any use for powering two ESCs from a single power connection. The easiest way to do it would be as mentioned and just solder two wires to the one tab on the connector, or if there's not much room, solder one wire on and then splice a second wire onto it just slightly further up. I did this on Drumroll this year to massively simplify the wiring loom. There is a picture of it somewhere that I'll try and find (if I can on this phone)