Bring the new battery back. It may be bad.
Get yourself a 15 dollar voltmeter at Radio Shack. Put the dial on DC volts. Put the black negative lead on the negative side, then red to red and look at the voltage, 12.6 is a fully charged battery. Each of the 6 cells puts out 2.1 volts. Start it, the voltage should rise to 13.8 to 14.9 or maybe a slight bit higher. Now you know everything is ok. Overnight if it dies you hace something pulling current, just like turning a dome light on and leaving it. The cigar lighter, trunk light, hood light, any one of many acces. Could be failed. Something was turned on or failed, and could be draining the battery. If you have time read about how it works and is tested here at the different site menus like battery goes dead. It is common problem for the cigar lighter, or hood lamp switch to fail, be on, and you wouldn't know it. Take the lighter or bulb out or turn it off. Dogs and kids are good for turning things on accidentily. Have good day. Bye
Saturday, April 17th, 2010 AT 8:37 PM