One of the prongs is 12+, one is 5+, and two are GND. They have the + beside the -. I used to know them but I don't know. Wait, I do have them

. I am wrong about the above info on them being + - + - but I do know that they are ++-- know. Also, on a version 9 or 10 the 12+ is on thge far left if looking at it turned upside down and the power input on the left top. I will post a pic ASAP. The patern goes
12+ 5+ GND GND. I know this is hard to explain

but I will post a pic as soon as I charge my camera batteries

. I hope someone understands this.