do our key fobs lose battery

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Jun 29, 2009 | 10:33 AM

#11

bardy444

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Joined: Feb 2009

Posts: 20

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From: toronto

My Ride: 2008 535i M package black on black with black trim fully loaded K&N air filter matte black grills M5 spoiler dinan stage 2

I have comfort access and I was told by my sales rep that the key does charge when pluged in the car but only need to be done once in a blue moon
I actually once got the same light come on my car, but never came back...

Jun 29, 2009 | 10:58 AM

#12

Diamond

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Joined: Apr 2009

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Quote:

Originally Posted by bardy444' post='927495' date='Jun 29 2009, 02:33 PM

Yup I confirmed this today when I was at the dealer and did charge my key and it got rid of the message. CA keys are also rechargable. Atleast in 07

Jun 29, 2009 | 10:58 AM

#13

stanatl

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Joined: Nov 2006

Posts: 305

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From: Atlanta, GA

I have CA and got the low battery warning. My SA told me that the battery could be re-charged by putting it in the ignition every now and then. I tried but it didn't help. He wound up replacing the key under warranty. If the battery is replaceable and not rechargeable it would appear that all I needed was a new battery. He obviously thought it was rechargeable. Oh well - it didn't cost me anything.

Jun 29, 2009 | 11:41 AM

#14

Rudy

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Joined: Mar 2004

Posts: 17,310

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From: Pittsburgh, PA USA

My Ride: G30 M550i

Model Year: 2018

Quote:

Originally Posted by bardy444' post='927495

Yup I confirmed this today when I was at the dealer and did charge my key and it got rid of the message. CA keys are also rechargable. Atleast in 07

Quote:

Originally Posted by stanatl' post='927521' date='Jun 29 2009, 02:58 PM

CA batteries are not rechargeable (and won't recharge if placed in the ignition) regardless of what the salesman says...

Salesmen don't RTFM, they just sell cars.