I PUT 2 BRAND NEW BATTERY AND A ALTERNATE AND IT...

  • Tiny
  • Anonymous
  • 1991 Lexus LS 400
  • 200,000 miles

I put 2 brand new battery and a alternate and it start but when I leave the battery hook up over night it dies I can drives it for 20min and it dead agin please please please help

Saturday, November 24th, 2012 AT 8:15 AM

1 Reply

  • Tiny
  • KHLow2008
  • Expert
  • 41,997 posts

Start vehilce and test the alternator charging. It should be 13.5 to 14.5 volts if you connect a voltmeter between the battery terminals.

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Saturday, November 24th, 2012 AT 1:23 PM

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