dynamite passport AC/DC lipo charger question

[kowalski22]

I have one of these chargers

Passport AC/DC LiPo 6S Charger 4066#

I would like to use it on an upcoming camping trip and I do not have the DC input cable. I would like to know does the input cable that is supposed to come with this charger just have aligator clips to clip on a 12V battery? Im thinking of making up my own cable, can any one tell me what side is POS + and NEG - on the charger its self?

thanks!

 

[Cordwood]

Square is positive

 

[kowalski22]

Square is positive

Thanks a ton cordwood! "thumbsup"
Just what i was lookin for!