Draining my battery!!

[botlefed1]

Hey, my battery went dead over the weekend a while back, and i figured i just left the headlights on or something so i bought a new battery and put that in. Ran fine and i let the car sit for maybe 2 or 3 days and it went dead again. does anyone know what is draining my batteries down??

 

[Built98GT]

Bad alternator

 

[loosescrew79]

Start by checking any after market electronic accessories. Those usually cause a drain first.

 

[Mike97gt]

Start by checking any after market electronic accessories. Those usually cause a drain first.

+1 aftermarket alarms and stereos are the most common cause of a draw. remember you have to keep a constant contact fromt he moment you disconnect the battery to get a accurate amps reading on a mutlimeter. IF at anytime the battery is disconnected fully without a jumper keeping contact you will "wake" up all the modules and get a false reading.

 

[botlefed1]

ok, i guess i can take the car down to auto zone and have them test the alternator. is there a specific test i can do to check the alarm and cd players?

 

[loosescrew79]

The easiest way would be to disconnect one thing and wait and see what happens.

 

[03ghoststang]

+1 aftermarket alarms and stereos are the most common cause of a draw. remember you have to keep a constant contact fromt he moment you disconnect the battery to get a accurate amps reading on a mutlimeter. IF at anytime the battery is disconnected fully without a jumper keeping contact you will "wake" up all the modules and get a false reading.

your talking about him doing an amp draw test yup that would be a good way to see how many amp's is being drawn out while the car is sitting