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Key Fob battery drainage

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mishal

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Verified Owner
Joined
Aug 16, 2026
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Location
Dammam, Saudi Arabia
Cars
Gravity Touring
Hello,

Since owning the Gravity for about 2 months, I had to change the key fob battery twice because I get a notification on my phone that the battery needs to be replaced.

Anyone else having this issue?
 
mishal said:
....Since owning the Gravity for about 2 months, I had to change the key fob battery twice because I get a notification on my phone that the battery needs to be replaced.
Anyone else having this issue?
Click to expand...
Have you updated your fob to the latest software? This is done through your Lucid phone app.
 
DeaneG said:
Have you updated your fob to the latest software? This is done through your Lucid phone app.
Click to expand...
Yes I have. I am on version 2.35.13.

I just found another detailed thread on this forum discussing the same issue. But I am not sure if a problem is fixed.
brokebit4096

Thread 'Key Fob Battery Life after Update to latest firmware'

Hey Folks - Curious, are you still seeing issues with key fob battery life after the most recent updates? Our Gravity is on 3.4.1 and the key fob is on 2.35.08 and we're only getting about 10 days from a fresh key fob battery.
 
mishal said:
Yes I have. I am on version 2.35.13.

I just found another detailed thread on this forum discussing the same issue. But I am not sure if a problem is fixed.
brokebit4096

Thread 'Key Fob Battery Life after Update to latest firmware'

Hey Folks - Curious, are you still seeing issues with key fob battery life after the most recent updates? Our Gravity is on 3.4.1 and the key fob is on 2.35.08 and we're only getting about 10 days from a fresh key fob battery.
Click to expand...
Unless you are constantly jiggling your key fob, I'd guess it isn't working correctly.
 
I've only replaced the fob battery once since I got the car last December, and this was when there were a lot of software issues with the fob. Not sure it actually needed to be replaced. Do you keep your fob in your pocket all day, or do you put the keys somewhere when you're home?
 
Usually in my pocket when driving or at work. Also note that my office is a few meters 15-20 meters) from my car and when I am home, the key is in a cabinet about 10 meters from my car. I am not sure if these short distances are making the key fob and car communicate.
 
mishal said:
Usually in my pocket when driving or at work. Also note that my office is a few meters 15-20 meters) from my car and when I am home, the key is in a cabinet about 10 meters from my car. I am not sure if these short distances are making the key fob and car communicate.
Click to expand...
I'd suggest trying a faraday bag or box to store it in. My key is close enough to the car that early on when I'd walk by it was enough to shake the key and wake it and I could hear the Gravity unlock. Since I got a faraday box it's been fine and I've only replaced my battery once since December.
 
RandomDesign said:
I'd suggest trying a faraday bag or box to store it in. My key is close enough to the car that early on when I'd walk by it was enough to shake the key and wake it and I could hear the Gravity unlock. Since I got a faraday box it's been fine and I've only replaced my battery once since December.
Click to expand...
Thanks for the suggestion. I might actually give it a try.
 
mishal said:
Thanks for the suggestion. I might actually give it a try.
Click to expand...
Here is the Faraday pouch I use at home and at my office:

Amazon.com: Faraday Bag for Car Keys, 2 Pack RFID Signal Blocking Key Fob Protector | Faraday Pouch for Car Keys, Carbon Fiber Key Fob Shield Pouch with Hook, Anti Theft Keyless Entry Case (Small) : Automotive

Amazon.com: Faraday Bag for Car Keys, 2 Pack RFID Signal Blocking Key Fob Protector | Faraday Pouch for Car Keys, Carbon Fiber Key Fob Shield Pouch with Hook, Anti Theft Keyless Entry Case (Small) : Automotive
www.amazon.com

Other than inserting a new battery when I first got the car I have not had to replace my fob battery since I took delivery last March
 
Ah, more fob problems. The worst failure point on this car.

I'm installing new batteries monthly. No noticeable improvement on mine.

Lucid service gave me the oft-repeated "it's normal for the car to take up to 40 seconds to wake up and see the fob" response. Sure, that's normal.
 
RandomDesign said:
I'd suggest trying a faraday bag or box to store it in. My key is close enough to the car that early on when I'd walk by it was enough to shake the key and wake it and I could hear the Gravity unlock. Since I got a faraday box it's been fine and I've only replaced my battery once since December.
Click to expand...
I second that suggestion. I think you are too close to your car and it is constantly activating. A bag for work and home should extend your battery life (and also reduce your car's phantom drain).
 
hwy17er said:
Here is the Faraday pouch I use at home and at my office:

Amazon.com: Faraday Bag for Car Keys, 2 Pack RFID Signal Blocking Key Fob Protector | Faraday Pouch for Car Keys, Carbon Fiber Key Fob Shield Pouch with Hook, Anti Theft Keyless Entry Case (Small) : Automotive

Amazon.com: Faraday Bag for Car Keys, 2 Pack RFID Signal Blocking Key Fob Protector | Faraday Pouch for Car Keys, Carbon Fiber Key Fob Shield Pouch with Hook, Anti Theft Keyless Entry Case (Small) : Automotive
www.amazon.com

Other than inserting a new battery when I first got the car I have not had to replace my fob battery since I took delivery last March
Click to expand...
If I used the Faraday pouch, will the car be able to unlock if I got near it, or do I have to remove it from the pouch?
 
mishal said:
If I used the Faraday pouch, will the car be able to unlock if I got near it, or do I have to remove it from the pouch?
Click to expand...
You do need to remove it when you are going to use it
 
Yeah, you leave the pouch at your home and office. Take the fob out when leaving, put it in when arriving.
 
scal_air said:
Yeah, you leave the pouch at your home and office. Take the fob out when leaving, put it in when arriving.
Click to expand...
Of course, as long as you just leave the key far enough away, you don't need to mess with a Faraday pouch. All the pouch does is block the signal so it's not communicating with the car, but distance does the same thing.

For me that's only about 15 feet away inside the door to my garage. I just hang it on a coat hook by the door. That's far enough way with a wall in between. It never triggers the car from there (even when I open the door to the garage). Although perhaps that's because my fob sucks. I'm not sure if that's a normal distance for everyone else.

I just got in the habit of hanging the key on the wall so it doesn't lock/unlock when I walk into the garage for something else. Or worse, doing work in the garage where it's locking/unlocking over and over when I keep walking near the car.
 
mishal said:
If I used the Faraday pouch, will the car be able to unlock if I got near it, or do I have to remove it from the pouch?
Click to expand...
The pouch basically encloses the fob in metal so no UWB signal can get in or go out so the fob "goes to sleep" and doesn't use any energy thus prolonging the battery life.
I leave the pouch hanging on the hook in our kitchen where we keep other keys and slip it in when I enter my house. I have a second pouch in my desk drawer in my office. Both of these locations are close enough to where I park the car where some communication with the fob may otherwise occur.
 
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