gday guys well tonight was first night i went out to the falcon in about a week, left the doors unlocked so opend the door. no interior light went on thinking hmmmm blown globe. flicked the key over no sterio went over one more no fuel pump no lights came on. poped the bonnet wacked the multi meter on it was at 0.5 of a volt! now when i fitted the exhaust i left radio on and started the car after it. was charging at 13.72 (f**k alt) or wat?? im confused and its about a 1 month on battery cost me 120.00 and its a centry battery so its no s**t brand name. anyone help??

13.7 Volts charging is about right. Generally anything from 13.6 - 14.4V is considered normal. If a battery has been completely discharged, as yours is (anything below about 11.5V is considered discharged) then a chemical rection occurs call sulfaction or some such. Anyway what this means is that a sulfide is starting to coat the lead plates in your battery which is not good.

Even though your battery is new is could be stuffed from sitting flat for a week. I have had luck getting some use out of bad batteries like this (though they are never as good as they were) by charging and getting the car started and then going on a long drive. This may just be me but I find that bumpy roads seem to help. After an hour or two the battery may hold a charge. But remeber this is a chemical reaction that has occured, so your battery is still stuffed to some extent.

cheers
Scott

thanks alot mate huge help. got a 2 year full warrenty on it : D hehe so when its really goes ill take it back. thanks thought shift kit was draining the battery, will do a discharge and recharge cycle got one kick a*** battery charger dad has got for the boat

not saying this is the same case as yours but when mine failed it read 13.7. tried to start next day would not start. charged up again fine for 3 days then would not start. so charged again and re-checked and read 11.7 volts. might be on the way out. also check current draw. hope this might help