seenitall Posted August 3, 2016 Share Posted August 3, 2016 I have a 2006 LS430. The battery in the smart key fob generally lasted for 2 years or more until 6 weeks ago. When I replaced the battery, the fob worked fine, but only for about 3 weeks. I replaced it again, and again only 2-3 weeks of life. I can't believe both replacement batteries -- which were from different packages with different distant expiration dates -- were both defective. Is there a short in the key fob that is now draining its battery? Has anyone experienced this before? And what might be a fix? Thanks. Quote Link to comment Share on other sites More sharing options...
2ton Posted August 3, 2016 Share Posted August 3, 2016 Duracell is my battery of choice for the smart key. My '04 came with 2 owner keys and a valet key. One of my owner keys has some issues with battery life-so I use it as a backup key, kept in a zip- lock with battery removed. 1 Quote Link to comment Share on other sites More sharing options...
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