HACK THS

Well I got a new Battery in. I tested it when I dropped it in, registered 12.57V. I cleared all the codes on the car, and took it for a drive. Fired right up, and I popped into the HVAC display (#20). I drove around for about 30 minutes, varying speed, etc. The whole time it registered between 11.3-11.7V. Seemed to go down a little bit the longer I drove. Pretty much held steady around 11.5-11.6V. Once I popped on the headlights it dropped down around 10.7V. When I turned them off it went back up to 11.5V.

Does this sound right? I still have the battery light lit on the speedo, but the bright yellow battery in the display is gone. Car drove great. I turned it off and started it again at the end of the drive and fired right up.

Is this sound correct, what should I do next for testing?

RoberTT-WWCD

Mine is between 13.7 and 14.3v. Could be the alternator or relay.

N9909E

Need to check loaded output of the alternator. You should see 13.5 volts. 10.7 volts probably wouldn't be enough to crank the starter.

HACK THS

How do I check that alternator?

HACK THS

Hey bud, that is what I thought... know how to check the alternator output, and relays?

TTschwing

You need an alternator (But you needed a battery too).....:-)

TTschwing

If it's not putting out into a good battery, it's NOT PUTTING OUT<ul><li><a href="https://forums.audiworld.com/tt/msgs/1730191.phtml">Hit the freakin link!</a></li></ul>

HACK THS

the battery posts.

JustJeff

voltmeter to check the voltage, but you need a shop with an ammeter or load test to fully test it

HACK THS

It is either that or a relay, and I have no idea how to be testing for that, or where. I have a nice multimeter. I tested at the battery terminals while the car was running, and I was getting around 11.6-7.