Okay so I made another thread about repairing my macbook pro. My problem is that I need to switch out the batteries to have the correct connector, as the battery to mobo connectors changed in a year, so I need to replace them. I don't know what type of screwdrivers I will need for the battery. The only way I can describe it is as a Y or basically looks in the same shape as a mercedes benz logo. Will attach pic below. But I don't know what its called, so I was hoping maybe one of you guys has done repairs before and knows the name.
I've heard them called Y screws and tri-wing screws, but I got a tri-wing screwdriver and its similar but is not what I needed.

I've heard them called Y screws and tri-wing screws, but I got a tri-wing screwdriver and its similar but is not what I needed.