Thanks for your reply Steve, the charger I am using is this purchased from bintel but the jaycar description is a little more detailed
http://www.jaycar.com.au/productView.asp?ID=MB3523 and it has always been sent to 12v.
I have had it charging for the last few minutes but there has not been a change in voltage, it is still at 11.8v
I am at a loss as to what to do, is it odd that it seems to power up the mount when I attach the red to negative and black to positive? I know was a little idiotic but it was more of a test and it seemed to work...