Hmm... Cant help ya there.. I know the Monsoon (and most Redcat's I think)takes a "BEC" type connector.. Hooks the battery upvia the "on/off" switch..(see below)
Note:The Reciever takes a standard "servo" type connector, but the battery hooks to the on/off switch with a BEC connector, then the on/off switch hooks to the reciever with the "servo" style connector.. You could make it work with either, with a little soldering though.. ANyway, below is the BEC connector, that's attached to the battery.