Battery Difference between CR2032 and CR2025

Great Tip!!

The type numbers define the physical size. The 20 stands for a nominal diameter of 20 mm. The last two digits define the thickness. CR2032 -> 3.2 mm CR2025 -> 2.5 mm

A dime may be slightly too thick, you can fold a piece of aluminum foil to an approximate correct thickness. =)

More than two Years later, i guess it's too late... ;-)

Jorgen

On Wed, 26 Nov 2014 08:58:21 +0100, "Lund-Nielsen, Jorgen" Gave us:

Fold the Aluminum foil around matchbook cover card stock.

Well... one used to be able to refer to matchbook covers, and adjusting one's points and such antiquated "skills".

Sure glad I quit smoking back in '87. Never looked back.

Nope, as long as your holder has enough spring in the contact to keep the connection it will work just fine. I do it all the time.... so to speak.

On Monday, September 3, 2012 6:24:44 PM UTC-5, snipped-for-privacy@thecave.com wrote :

The mediary of the disproportionate mass is equal to the hypotenuse of the inverse triangulation. This extrapolates into dissonance and transpondanse with slight emissions of alabalung gazunga, which is found in a cow pen in the Kenya Highlands. Thus, the last word hath been spoken by your faithful servant and slave from Texas.

Now that I know that, I feel so much schzmarter!

Jamie

I just wanted to say this was a quick and helpful explanation. Thanks

Sure no problem.. I just bought two CR2032 today to replenish my key fobs. :)

Jamie

On Monday, September 3, 2012 at 7:24:44 PM UTC-4, snipped-for-privacy@thecave.com wr ote:

I use a bunch of CR2032's and have an ample supply on hand. So when my Niss an's remote started to act up I tried replacing the CR2025 with a CR2032 as they are both 3v and appear very similar in size. (see comments by others for size differences) Anyway, the CR2032 works great as a replacement for t he CR2025.

FYI a typical BMW key fob takes a 2020, 3 volt (Panasonic or Energiser)

I just, successfully, replaced a cr2025 with a cr 2032.

One is 3.2 mm thick, the one you bought is 2.5 mm thick..

Other way 'round I think. He managed to install the thick one where the skinny one was called for. I've used a skinny one in place of a thick one before, but you have to be careful that it will still make contact. Sometimes the spring doesn't have enough compliance. It's even worse when multiple cells are stacked.

The CR2025 in my A/C remote died and I replaced it with a CR2032. It is a snug fit, but the remote works again.

correct/agreed.....using a 2025 i found for my car fob; last long enough for me to find the cache of 2032's i have somewhere

It won't help. There are those, like me, that read between the lines.

Methinks that they're identical in capacity.

I had ocassion to tear apart a CR2032 cell: Note the mottled looking white Lithium smear on the anode terminal on the right. Over a period of several days, the somewhat clear lithium oxidized into a white coating. Notice that the crumbling MnO2 cathode is somewhat thicker than necessary. When I tore apart a CR2025 (sorry, no photo) it was the same as the CR2032 but with a slightly thinner MnO2 layer. It might save some money to use identical components.

I haven't run discharge tests yet (I have a West Mtn Radio CBA-II analyzer) but I wouldn't be surprised if the CR2032 and CR2025 were identical capacity. If you look at the discharge curves, the "Discharge Characteristics" graphs are identical.

The dime worked well, good tip.