the message on the information system says 'battery not charging' on 1999 Cadillac DeVille

this message comes on a few seconds after the engines is running.I had the battery tested and replaced- the message still appears. what is possibly the problem?

by in Potwin, KS on August 21, 2014
1 answer
ANSWER by , August 21, 2014
Unfortunately the most likely problem is the alternator has failed.