I forgot to take the little white wire with the little banana plug out of the battery and broke it off in the battery anyone know how to get one of these out?

If there is a bit of space left in the plug where the wire broke, strip the insulation off of a small piece of wire, apply some CA glue to the wire and insert it into the banana plug. let it dry and pull it out slowly. You will need to replace the banana plug as it will be filled with glue.

That's what I would try at least.

Personally, I'd try the CA mentioned above. If that doesn't work, find a small diameter sheet metal screw and screw it into the plug, but only enough so you can pull it out. Going in to far may expand the broken bullet making it even more diff to get out.

mabey try to soldier something to it and pull her out...