RX - 3rd Gen (2010-2015) Discussion topics related to the 2010 - 2015 RX350 and RX450H models

Change key fob battery warning

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Old 12-08-14, 08:21 AM
  #16  
raylor4
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Originally Posted by Cruiter
Something to consider if you place two or more fobs on the same counter or same pocket or same purse routinely. They are tiny radios and constantly transmitting and receiving. It won't hurt them but doing this repeatedly will decrease your batteries at a much higher rate as their constantly talking to one another by trying to communicate and failing.

I keep mine at least 10 feet or more apart as a general rule.
Excellent observation. Constantly talking to each other probably leads to heated arguments and upset, thereby causing energy drain, much the same as with relationships. I'm just sayin'. This has been a joke, made up by yours truly.
Old 12-08-14, 08:27 AM
  #17  
raylor4
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Just a note about alkaline batteries. They don't die gradually like the old-style. They maintain their voltage until they reach end-of-life, then the voltage falls off rapidly. This is why some batteries will be good enough one day, then not good enough the next, and so on. Our fobs lasted three years then died suddenly. Hope this helps in this application as well as others.
Ray A.
Old 06-05-19, 01:00 PM
  #18  
cwatx
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Originally Posted by Cruiter
Something to consider if you place two or more fobs on the same counter or same pocket or same purse routinely. They are tiny radios and constantly transmitting and receiving. It won't hurt them but doing this repeatedly will decrease your batteries at a much higher rate as their constantly talking to one another by trying to communicate and failing.

I keep mine at least 10 feet or more apart as a general rule.
This is good to know - thanks! I shall keep mine separated from now on
Old 06-05-19, 02:36 PM
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Schulzmc
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I got the "change your battery" warning and did so. No more alert. Then two days later I get the alert again. Then no alert for a week. Then alert again. Then nothing.

I finally realized I was getting the alert whenever my wife was with me... with HER fob in her purse. Changed the battery in that... and no more alerts!
Old 06-05-19, 03:34 PM
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mcomer
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Be certain you are not leaving the fob(s) in the car while parked, even in your locked garage.
Not sure if the fobs "talk" to each other but the fob battery life is definitely shortened when they
are within three (3) feet of the car.
Old 07-17-20, 02:41 PM
  #21  
BatmobileX
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What type of battery is required for the key fob? Is it a CR 1632 or a CR 2032? My key is currently with a garage and I can't check.
Old 07-18-20, 07:18 AM
  #22  
mcomer
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Different fobs have different batteries, crack one open to see.
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