battery charging issues

[oldshep]

Hey everybody. the batteries on my truck wont charge. they are super start agms and are less than a year old. How do i check the alternators output? what else could cause this? all the cables are new also. thanks

 

[Westech]

use a volt meeter and see the volts when off and when running. that about the only way you will be able to do that with out a tester the puts a load on the charging system. could have a bad alt or voltage regulator. ez fixes

 

[dirtyfingernails]

Shep,
I asked the same thing a few days ago. Bjorn turned me on to this: http://www.steelsoldiers.com/index....generator&name=gallery&include=view_photo.php Check it out, it was very helpful.
Steve