Get the manual at Fullriverbattery.com for wiring stuff.
White to B- enables charger. Disconnect to disable.
Red is B+
Black is B-
Green is the Interlock. Green is pack voltage when you're not plugged in, and disconnected from B+ when plugged in (I think, but be the other way around). DO NOT CONNECT TO B-, you will blow the internal fuse which is a PAIN to replace.