LS - 4th Gen (2007-2017) Discussion topics related to the current flagship models LS460, LS460L and LS600H

Did Mechanic Replace My Car With Wrong Battery?

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Old 04-19-19, 02:43 PM
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sfgent
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Default Did Mechanic Replace My Car With Wrong Battery?

Today my 2008 Lexus LS460 wouldn't start from a dead battery. The thing is I replaced it with a brand new Interstate battery 2 months ago. The AAA service man said his tests showed the battery was fine, and the only thing he thought that was wrong was it was the wrong type of battery installed.

Can someone confirm if this looks right?

Thanks!

Old 04-19-19, 03:09 PM
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Nospinzone
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If the AAA guy said your battery was fine, then I would say you have a poor connection to your battery cables. Take the cables off the battery terminals and clean the insides with a fine sand paper. You should be good to go.
Old 04-19-19, 03:49 PM
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jmcraney
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Originally Posted by sfgent
Today my 2008 Lexus LS460 wouldn't start from a dead battery. The thing is I replaced it with a brand new Interstate battery 2 months ago. The AAA service man said his tests showed the battery was fine, and the only thing he thought that was wrong was it was the wrong type of battery installed.

Can someone confirm if this looks right?

Thanks!
Your battery seems to be an AGM type battery, can't say for sure from your picture. Your car was designed to use a flooded cell battery and that might account for the AAA guy's comment. The AGM battery should work fine except in extremely hot climates. The battery seems to be properly sized as it seems to fit the mounting hardware properly.

Your discharged, but good, battery is likely the result of a defective doorjamb switch. The defective doorjamb switches cause the headlights to remain on (not turn off automatically) after the ignition is off, in some situations. We have discussed this extensively in this forum.

https://www.clublexus.com/forums/ls-...l#post10137523

Last edited by jmcraney; 04-20-19 at 08:59 AM.
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