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key fob battery change

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Old Nov 4, 2009 | 03:50 PM
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Default key fob battery change
Hi,

As I only received one key fob when I bought the car, I would like to order one or two batteries in spare to play it safe.

Does someone know the exact model I should order ?

Thanks in advance !
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Old Nov 4, 2009 | 04:23 PM
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You can get them at any Rite-Aide/CVS/etc.
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Old Nov 4, 2009 | 04:41 PM
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Ohhh I know where to find them , I just need to know the reference of the battery.

Tx
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Old Nov 4, 2009 | 04:45 PM
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bought a new battery for the Key-fob at the local Porsche dealership, it was very expensive for this tiny battery, it you find a better source let people know!

cheers,

Bert


bert
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Old Nov 4, 2009 | 04:48 PM
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I bought one at Radio Shack for about $2. Take the fob with you and they will find the correct battery.
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Old Nov 4, 2009 | 04:54 PM
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see this thread and keep a spare battery in the car along with the small Phillips head needed to replace it
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Old Nov 4, 2009 | 04:54 PM
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Is there anything in particular you need to think about when you change battery? I opened my keyfob with the small philips screwdriver and the whole electric board came out.. Is it supposed to be lose like that? then I replace the battery but no juice.. The small diode doesn't light up when pushing the button either..
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Old Nov 4, 2009 | 04:56 PM
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Battery is MN21 or A23. Mine was labeled 21/23. Available almost anywhere.
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Old Nov 4, 2009 | 05:42 PM
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Thanks, very much appreciated !
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Old Nov 4, 2009 | 05:43 PM
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Originally Posted by vhanzon
Is there anything in particular you need to think about when you change battery? I opened my keyfob with the small philips screwdriver and the whole electric board came out.. Is it supposed to be lose like that? then I replace the battery but no juice.. The small diode doesn't light up when pushing the button either..
IIRC, the board just sits in there. Just make sure you have the polarity right and that the new battery is good. reminds me, I should change mine

good luck
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Old Nov 5, 2009 | 09:23 AM
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Right, A23. Just picked up a couple last night myself ($1.99) and stashed them in the glove box.
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Old Nov 5, 2009 | 12:06 PM
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Yep, just did the same Also, the phillips that comes with the toolset works ok to open the key fob.
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Old Feb 19, 2019 | 09:20 PM
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$4 at Walmart
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Old Feb 20, 2019 | 11:05 AM
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Just in case of fob battery failure, I purchased a small plastic pill vial that's just big enough to put an A23 battery inside, then hung it to the fob.
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Old Feb 21, 2019 | 01:38 PM
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Originally Posted by NC TRACKRAT
Just in case of fob battery failure, I purchased a small plastic pill vial that's just big enough to put an A23 battery inside, then hung it to the fob.
That is a great idea.
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