battery not holing charge on 1990 Cadillac DeVille

A few months back i had battery replaced. Within weaks of replacement couldn't start car. Had to get a jump. after jump ran car engine to charge battery. after about 15 minuets the engine stopped and i could not turn it over with the key in ignition. On the dash the light went on for the battery not charged.

by in Tampa, FL on February 01, 2010
2 answers
ANSWER by , February 01, 2010
You'll want to get the charging system checked out, and the battery as well. Either the battery, alternator or the wiring can cause this problem, so have a shop run a quick charging system check, should charge about half an hour to diagnose this.
ANSWER by , August 21, 2010
Have the alternator checked.