I keep having to replace my battery

Asked by Nov 25, 2013 at 04:16 PM about the 2009 Lexus RX 350

Question type: Maintenance & Repair

In September 2012 I replaced ,my battery.  My car stopped today and I was told the battery was dead and drained.  I have a 2009 Lexus RX 350, is there a reason why my battery keeps dying?  Could it possibly be the starter or alternator rather than the battery?

2 Answers

63,255

Could be the alternator but I doubt it. You'd most likely have a warning light glowing on the dash. It is possible that the battery is defective and died of natural causes. I work at NAPA and, unfortunately, it happens from time to time. Make sure your cables are clean and tight where they hook up to the battery. Put some Vaseline on the cable ends and battery terminals before installation. They'll never corrode again. HTH. -Jim

2 out of 2 people think this is helpful.
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I had the same model same battery drain issue many times over the last two years. It appeared to occur only at super cold days like below freezing temp. The battery seems fine as I have had the same battery for two years. Frustrated at the dealer refusing to acknowledging the draining issue.

2 out of 2 people think this is helpful.

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