Get a lead & connect your starter motor to your battery, connect positive to positive & negative to negative(obviously lol)
then just fire her up, you'll get 12v direct to your starter motor no matter how cold it is it'll start straight away :RpS_thumbup:
I did this on my first car in the winter, but was a pain connecting up every morning so i ended up putting a switch on it & mounted it on the dash for winter starts lol. The car cost me £70 :RpS_laugh:
Just use some crocodile clips both ends on a cable as a temporary measure :RpS_wink: