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My 2016 Murano keyfob showed low battery after 2 years and was replaced. Two months later the same low battery message came up and my car was at the dealership for servicing so the tech offered to change the battery. He felt maybe I had gotten a faulty battery. Now 3 months later I am getting the low battery message again. So my battery has been replaced twice in 5 months and now it says it needs rep,acing again. Anyone having this problem and have found a solution? Most people say their battery lasts 3 years at least in other makesand models of vehicles. I am still under warranty but I know Nissan will give me a fit about replacing my keyfob.
 

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Mine only lasted a year before I had to replace it. Seems kind if quick but maybe that's how the battery life on the NFC keys are.

Only thing I can suggest is try a higher quality battery from Energizer or Duracell. Maybe the dealer just popped in a cheap generic one as thats cost effective for them.
 

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Try these and let us know:
[ame]https://www.amazon.com/Lithium-Medical-Battery-2032-Package/dp/B01APVCOY8/ref=sr_1_10?ie=UTF8&qid=1549861062&sr=8-10&keywords=Duracell+cr2032[/ame]
 

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both fobs usually show low battery after a few months. Dealer has replaced them both twice (no charge) and I have changed them both once in 18 months of ownership. Now, I keep a card full of batteries in the glove box and one in the battery cupboard at home
 

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My 2016 Murano keyfob showed low battery after 2 years and was replaced. Two months later the same low battery message came up and my car was at the dealership for servicing so the tech offered to change the battery. He felt maybe I had gotten a faulty battery. Now 3 months later I am getting the low battery message again. So my battery has been replaced twice in 5 months and now it says it needs rep,acing again. Anyone having this problem and have found a solution? Most people say their battery lasts 3 years at least in other makesand models of vehicles. I am still under warranty but I know Nissan will give me a fit about replacing my keyfob.
Replace the battery in the spare key as well and see if it lasts longer. If it does, the original key has a short or is somehow defective. If they both drain as fast, then you might want to look at where you are storing them: are they in pants, pockets or bags where other things could be pushing against the buttons when you are away from the car?
 

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The intelligent keys use a lot of power. Why? Because it's always transmitting a frequency. When you press the handle button, the car looks for the specific low frequency and if it finds a match, it opens the door. Again, when you start the car, the car looks for the same. This means that the FOB is always on, thus you have a lot of battery drain. Basically it's active RFID.

Add to this the use of the buttons, remote start, etc.. and you don't have as much time as a non active RFID system before the battery falls over dead.
 

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The intelligent keys use a lot of power. Why? Because it's always transmitting a frequency. When you press the handle button, the car looks for the specific low frequency and if it finds a match, it opens the door. Again, when you start the car, the car looks for the same. This means that the FOB is always on, thus you have a lot of battery drain. Basically it's active RFID.

Add to this the use of the buttons, remote start, etc.. and you don't have as much time as a non active RFID system before the battery falls over dead.
True!
It uses very little power as long as you do not press any button on the fob.


Let's say you always use the door handle to open and close the door, and do not use the buttons on the fob, or do not use remote satrt, then it should last you at least 1year.

Remote start is also a big battery drainer, since you first have to press the close button and hold the remote start for at least 5sec, this will drain the battery faster.
 

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In 5 years I’ve replaced my keyfob battery one time and I pretty much use it every day.
 

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Mine only says "low battery" randomly... it can go weeks before it will show up, then it will show up every time for a few days, then never again for a few months. I have had mine almost 3 years and replaced neither. It does this with both the main set and extra set *which is rarely used*.
 

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I just got a low battery on my spare key. I just took it back to the place where I bought my car from and asked them to replace it. After reading this post it sounds like you can simply replace the battery by yourself.
 
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