Can i advise that you get someone to have a look at your battery before you use it,a mechanic will tell you if its a leasure battery or not and trying to charge up a battery that is totally discharged and not going to work can be dangerous leading to in the extreme the battery exploding which i have had happen to me,i was charging a battery in my garage with a charger that has lights for three stages of the charge,fluid levels were topped up and i had loosend the screw caps,over a few days it wasn`t going to the stage of fully charged but i had felt that the battery was getting very hot on one side,and when i removed one of the clips from the charger the battery exploded showering me with acid,which i washed off with water,so i alway`s buy a new leasure battery if in doubt.