There's a detailed review here which states: "First, there is the external power connector with a Canon-type plug. It accepts the Yongnuo SF-18 battery pack (or the original one from Canon)."
YN 560 can use the same battery packs as a Canon Speedlite with external battery plug.
I have YN as well as Pixel HK packs that work without a problem. I think I've also used Quantum and Canon packs but don't remember for certain.