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Author Topic: Keyless Battery  (Read 3446 times)

Offline Diehammer

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Keyless Battery
« on: 30 March 2016, 13:30 »
Car is telling me that i need to replace the battery in my key after only 10 months of use surely they should last longer than this. I havent had to replace a battery in the key in any of the cars i have owned previously.
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Offline JoeGTI

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Re: Keyless Battery
« Reply #1 on: 30 March 2016, 13:41 »
Quote from: Diehammer on 30 March 2016, 13:30
Car is telling me that i need to replace the battery in my key after only 10 months of use surely they should last longer than this. I havent had to replace a battery in the key in any of the cars i have owned previously.

This comes up all the time. 10 months is short, mine made it to about 18. But hey, a new battery costs about 2 quid in your local chemist... you'd have bought it and installed it in the time it took to post here about it.
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Offline GerryD

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Re: Keyless Battery
« Reply #2 on: 30 March 2016, 14:26 »
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Offline p3asa

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Re: Keyless Battery
« Reply #3 on: 30 March 2016, 15:11 »
I wonder if thats got something to do with keyless always transmitting.
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Offline kevinm

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Re: Keyless Battery
« Reply #4 on: 30 March 2016, 16:48 »
Quote from: p3asa on 30 March 2016, 15:11
I wonder if thats got something to do with keyless always transmitting.

I'd say so. If you watch the key while driving the red light flashes every so often.
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Offline GeoBog

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Re: Keyless Battery
« Reply #5 on: 30 March 2016, 22:53 »
This has been discussed here and on golfmk7 and vortex multiple times. It is because of keyless keyfob being more active than the non-keyless one. 1 year seems to be the norm for these batteries. I have replaced mine after 13 months with a Duracell. The original battery was Panasonic. On my 9 year old Megane I still have the original battery (a Maxell)
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Offline dippy_x

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Re: Keyless Battery
« Reply #6 on: 31 March 2016, 18:29 »
Yup - Mine lasted just over a year.  Bought a double pack of replacement batteries and keep one as spare in glovebox just in case.
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Offline rocknob

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Re: Keyless Battery
« Reply #7 on: 05 April 2016, 20:51 »
Here's an interesting one. On Saturday I put a bag in the boot with the key in it and it locked. It's not supposed to but it did. Managed to get a my mother in law to bring the spare key and opened the car. The next day I started getting low battery warnings for the fob. I can only assume that with the battery low it was not able to be picked up by the antenna in the boot.
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Offline Walts

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Re: Keyless Battery
« Reply #8 on: 05 April 2016, 21:21 »
Quote from: rocknob on 05 April 2016, 20:51
Here's an interesting one. On Saturday I put a bag in the boot with the key in it and it locked. It's not supposed to but it did. Managed to get a my mother in law to bring the spare key and opened the car. The next day I started getting low battery warnings for the fob. I can only assume that with the battery low it was not able to be picked up by the antenna in the boot.

Feel you pain, did the same the other day......

On looking into it appears there is a delay of some sort if the keys in the boot unlike if it's in the car itself.

Basically if you put the key in the boot you have to either get it out or open the car witchin an amount of time, if the keys in the boot and you don't then it'll lock the car for security reasons.
I had the key in the boot before with no issues, this time left it in and got talking to someone, then had to call the Mrs for delivery of then2nd key........ Ooooops
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