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Re: You know your key-fob battery is running low when... Par

Posted: Thu Dec 19, 2013 10:11 pm
by fotajoye
CR2025 = Diameter: 20 mm. Thickness: 2.5 mm. Capacity: 160 mAh,
CR2032 = Diameter: 20 mm. Thickness: 3.2 mm. Capacity: 220 mAh

.7mm(a little less than 1/32 inch) difference in thickness and 60 more mAh, 38% more capacity to be correct. I'll take the chance!

Re: You know your key-fob battery is running low when... Par

Posted: Fri Dec 20, 2013 5:57 am
by TimLee
fotajoye wrote:CR2025 = Diameter: 20 mm. Thickness: 2.5 mm. Capacity: 160 mAh,
CR2032 = Diameter: 20 mm. Thickness: 3.2 mm. Capacity: 220 mAh

.7mm(a little less than 1/32 inch) difference in thickness and 60 more mAh, 38% more capacity to be correct. I'll take the chance!

As I said, you got lucky.
And I'm happy for you, but advocating that people try using the CR2032 is overall BAD advice. :oops: :oops: :oops:
I tried it in mine because someone else in another fob battery thread said it would work and the Dollar Tree only had the CR2032, and the thickness was too much, and only one of the buttons would work at all, the rest would not work at all. :oops: :cry: :oops: :cry:
I was lucky that it did not damage my fob. Some others have not been that lucky, and the fob did not work as well after they tried it.
You should be ashamed of yourself for continuing to propagate the bad advice on MNL of trying the CR2032 in the fob. :oops: :oops: :oops:

Also, the fob battery should be changed as soon as you notice the low fob battery warning. As I posted in another fob battery thread (viewtopic.php?f=30&t=11471#p264737), I waited a long time on changing the battery in a 2009 Altima fob, and that fob is still barely functional even if you put a brand new battery in it every two months.
Change the LEAF fob battery as soon as you get the warning, and use the correct CR2025 fob battery :!: :!: :!:
Replacement fobs are just too expensive to take chances with it.

Re: You know your key-fob battery is running low when... Par

Posted: Fri Dec 20, 2013 12:50 pm
by fotajoye
@Tim Lee:
Please read my posts and not assume things. I am not advocating using another battery, I am presenting facts which is what I learned over a long career as an EE.

As to your battery problem: Did you install it correctly, did you check the voltage under load? Was the battery mis-marked? You appear to be predisposed to making wrong assumptions. Perhaps you did so again in you fault analysis of your FOB battery problem.

As far as being ashamed, I quit doing that when I reached 35, 45 years ago.

I think to end this nonsense, you use the battery you want and I'll use the one I want. Others can make up their minds based on the facts, hopefully not assumptions presented.

Re: You know your key-fob battery is running low when... Par

Posted: Sun Dec 29, 2013 4:31 pm
by johnr
@fotajoye:
I accidentally purchased a CR2032 battery for my keyfob and realized it was the wrong size only after I popped open the keyfob. Figured I might as well try and see at this point, well I found that it actually fit just fine - so it worked for me as well. :D Of course, due to manufacturing tolerances the standard disclaimer applies: YMMV.

Re: You know your key-fob battery is running low when... Par

Posted: Sat Feb 22, 2014 9:49 am
by Goodtohave
I do remote starter for 3 Nissan dealers and I take the fobs apart almost every day.

Nissan used to use 2025's but they now use 2032's in all remotes from the factory and when they replace batteries in the older remotes they use. 2032's


This 7 page thread can be closed!

Personally i replace my battery every few months . I like full having full range. They are a dollar. Call me crazy!

Re: You know your key-fob battery is running low when... Par

Posted: Thu Feb 05, 2015 12:52 pm
by BooKittyLeaf
Interesting Side Note:
Keeping a spare fob in the car.

I keep a cut key in my wallet (its flat) to get into the car. Then I have a FOB hidden in the car to start so I dont get stuck if I loose my FOB.

You can wrap the FOB in tin foil & stash it someplace inside the car. It will not be able to communicate when wrapped in foil.

BE CAREFUL - dont forget to change the battery in the spare every 2 years or so as you do the other FOBS.

Re: You know your key-fob battery is running low when... Par

Posted: Thu Feb 05, 2015 1:20 pm
by TimLee
Goodtohave wrote:...Nissan used to use 2025's but they now use 2032's in all remotes from the factory and when they replace batteries in the older remotes they use. 2032's


This 7 page thread can be closed!
...

That may be what you are doing.
But a properly installed 2032 battery in a 2011 key fob did not work and could have easily damaged the key fob.

You are working at a dealership, that will fix doing something stupid.

Individuals do not have your dealership backing them Up. :!:

Re: You know your key-fob battery is running low when... Par

Posted: Thu Feb 05, 2015 1:30 pm
by TimLee
BooKittyLeaf wrote:Interesting Side Note:
Keeping a spare fob in the car.

I keep a cut key in my wallet (its flat) to get into the car. Then I have a FOB hidden in the car to start so I dont get stuck if I loose my FOB.

You can wrap the FOB in tin foil & stash it someplace inside the car. It will not be able to communicate when wrapped in foil.

BE CAREFUL - dont forget to change the battery in the spare every 2 years or so as you do the other FOBS.

Good idea.
If you elect to spend the $ to get more fobs, buying a spare fob and key and keeping the key in you wallet or purse and the spare fob hidden inside the LEAF with no battery in it is a very good idea.
The built in RFID will allow you to start the LEAF with it in close proximity of the Start button.
Excellent idea.
Just hide the fob well.

Re: You know your key-fob battery is running low when... Par

Posted: Thu Feb 05, 2015 1:43 pm
by jpa2825
Sadly, I did not even know the warning was a warning. I just thought it was an "upgrade" that now told me how much charge I had left in my fob. Since the black covered most of the area up to the F, I figured I was still pretty close to Full.

Experienced the inability to get in the car a few weeks ago. Eventually clicking it worked, but car wouldn't start. I must have gotten the fob close enough to the button for the RFID to work because eventually it turned on.

This AM, same issue. Got the backup fob and it worked fine.

Will get new batteries 2025 or 2032, whichever is cheaper, and replace both. My "software upgrade" will likely go away after that. :)

NOTE: Just tried, and an eyeglass screwdriver seems to work pretty well (with the key out) to pry open the seem around the fob to replace the battery. I didn't open it all the way up, just separated it enough to see that it could be done.

Re: You know your key-fob battery is running low when... Par

Posted: Mon Feb 09, 2015 2:12 pm
by jpa2825
Got 2 2032s at Dollar Tree for $1. (Actually, got 4 for $2.)

Replaced the usual and the backup.

Notification went away.

All seems to be well. Thanks to this forum for helping me find the right battery at the right price.