I can only find one Ryobi battery and it runs the cooling fan on the CNC router for a very short time
I don’t have the full details, but I believe @CBennett brought in his personal fan for use on the CNC. I don’t know if it was originally brought with replacement batteries.
There might be one in the welding area…seems like the angle grinder back there is a ryobi as well…not sure if it’s the same battery or not, I can check when I head in there later.