The designation "LR44" is based on the abbreviation "LR", whereby "L" according to the IEC name declaration shows that it is an alkaline manganese cell. The "R" stands for "round cell" - what we commonly call a button cell and the number 44 is part of the name according to the type IEC 1 declaration.
Every now and then you will find the designation "LR44" next to the designation LR357 or "1154". This is the marking according to the type IEC 2 declaration, because the number 1154 means that the diameter is 11,6 mm and the height is 5,4 mm. With the IEC type 2 designation, one can deduce the dimensions.
Incidentally, the button cells are manufactured (according to Wikipedia) to an accuracy of a tenth of a millimeter. This results in only very small tolerances in the size of the different manufacturers.
Comparative types and alternatives to the LR44: AG13, 357 and others ...
Button cells usually have a large number of names for the same button cell, although there are no differences in size, but there are differences in chemical structure and thus in cell voltage and properties.
In principle, you can look out for the following names instead of LR44:
The most common is the use of AG13, LR44 or 357. All of these names stand for an alkaline manganese cell measuring 11,6 mm in diameter and 5,4 mm in height.
Difference between LR44 and LR44H
A reader asked me via the comment function what is the difference between the LR44 and LR44H batteries. I had to ask Google myself once and finally found what I was looking for on Wikipedia.
Designations such as L1154, LR44, V13GA, AG13, KA76, LR44H and GPA76 all denote the same cell type
The suffix H does not stand for a technical feature, but is just another designation for the same type of battery. The differences in the designations are often due to the fact that the same cells are designated differently in different countries or by different manufacturers.
SR cells based on silver oxide and zinc
In addition, these comparison types also function as substitutes:
Incidentally, the "SR" stands for silver oxide zinc cell, which in my opinion is the better alternative to the "LR". The silver oxide button cells have two major advantages:
they have a consistently high voltage for a long time
they do not leak and are therefore suitable for use in sensitive devices such as wristwatches
Buy LR44 and SR1154
If you look at Amazon for the LR44 and SR1154 button cells, you will notice that the retailers unfortunately do not take the differences very seriously. It is advertised with the designation SR44 or SR1154, although there is clearly an alkaline cell in the product and not a silver oxide battery.
For this reason I have specifically linked the individual button cells here so that you get what you are looking for:
My tip is to definitely take the SR44 from Duracell, because the silver oxide cells are leak-proof and have better electrical properties. You pay a little more for this, which is bearable given the long shelf life of the button cells.
There are rechargeable models for some button cells. These then have the abbreviation "ML" or "LIR" at the front instead of the "LR" or "SR". Unfortunately I could not find an ML44 or LIR44 - which would actually be the appropriate product name.
Whether the rechargeable button cells make sense is a good question anyway, because they usually have a very low capacity, so you have to charge them often. This should be quite annoying in wristwatches or remote controls, because if these devices suddenly stop working because the battery is surprisingly empty, it is always unsuitable.
LR44 / SR44 in the button cell range
If you need different types of batteries every now and then, you can look around for a button cell set. This usually also includes an LR44 / AG13 / 357 battery.
I also checked whether there were button cell sets with silver oxide batteries (SR44), but unfortunately I didn't find anything here. So if you are only looking for an LR44 and want to fall back on something of high quality, you should continue to use the Duracell double pack with the SR44 to grab.
Jens has been running the blog since 2012. He appears as Sir Apfelot for his readers and helps them with problems of a technical nature. In his free time he drives electric unicycles, takes photos (preferably with his iPhone, of course), climbs around in the Hessian mountains or hikes with the family. His articles deal with Apple products, news from the world of drones or solutions for current bugs.
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29 comments on "Button cell LR44 - comparison type, data and identical replacement"
Thanks for the detailed information and Happy Holidays ???? ☃️ ????
Thank you I wish you that as well. And thanks for the coffee. : D
What is the difference between lr44 and lr44h?
Hello Sabrina! The answer is: there isn't one. Here is the quote from Wikipedia:
I have a question.
My hearing aid uses the PR44 button cell.
What is the difference between PR44 and LR44.
Is there a rechargeable button cell that is the same as PR44?
The 2-weekly replacement comes at PR44 very expensive.
Thank you for a feedback.
So if I understand correctly, PR44 is the same as LR44. Just PR44 is a Duracell designation for LR44.
I am not aware of a rechargeable version of the LR44. The button cell batteries also all have the problem that they have a low cell voltage, which means that the devices may not work properly and, on the other hand, the running time for a charge is very short. This means that you would have to change and charge the batteries very often.
A PR 44 is a zinc - air. 1,4 volt nominal voltage.
An LR 44 is an alkaline - manganese 1,5 volt nominal voltage.
Capacity, high-current capability and other things...
Data: from Siemens:
IEC code: PR 44
Size code: 675
Color code: blue
Height: 5,4 mm
Voltage: V 1,4
Capacity: 650 mAh
LR 44 1.5 volts
has about 150mAh if I remember correctly. So empty faster. ...
That only brings frustration!
I thought you were out?
"From now on I'm out of the discussion. It's no use to me. And for the end user, in my view, enough has been said.”
Somehow the topic seems to concern you a lot... but to be honest, I can't quite follow it anymore, so I'm really out of it... thanks anyway for providing us with your knowledge here.
what about the energy supply? Are there differences? I mean there are so many different prices with the same name, is there less energy (mAh) in the batteries?
Hello George! So everything that has “LR” in front are alkaline manganese cells. For example, since all LR44s are also the same dimensions, there won't be any significant differences in the energy that can be extracted. The situation is different if you have SR cells. These are silver oxide zinc batteries which have two advantages: they don't run out as quickly as LR cells and they have a better voltage curve. This means that even if they soon run out, they still have a higher voltage than LR cells. The devices in which they are plugged in only report that the button cell needs to be replaced much later than they do with an LR cell. Seen in this way, in practice you can usually extract more energy because you can exchange it later.
There is a massive contradiction!
One is LR - cells (internal structure: alkaline - manganese)
The other are SR cells (internal structure: silver oxide)
What does the internal structure have to do with leakage? Nothing!
Inside is inside Outside is outside.
The SEALING belongs to the outside.
“Evidence”: Wikipedia https://de.wikipedia.org/wiki/Knopfzelle
Apologies for citing Wikipedia as "evidence". That's inadmissible.
But in the first "scheme" (picture) of a button cell you can see an "insulator" between the negative pole and the positive pole.
This isolates the polarities. (otherwise there would be a short circuit and no current)
But it is also the seal between the poles in the housing. The seal ensures that the electrolyte / acid / alkali does not come out. How good the seal is and how much care has been put into it makes all the difference. Huge difference!
Sloppy work, cheap material, or very little causes the cell to leak. Sometimes even before installation.
The acid comes out, the cell dries up - no electricity, the acid attacks the environment and eats away at the electronics, precision mechanics, clock, ...
If you save on the seal, you sacrifice the hardware behind it. ...expensive fun.
Of course again:
Not the LR or the SR runs out faster. So it is not the inner cell structure, but the seal – outer structure – that makes the tightness.
Only the care there is decisive for (not) leaking.
Cheap, sloppy, ... the seal has nothing to do with the internal structure of a cell. Gasket is the outer structure.
I can't quite confirm now: On the Wikipedia page you quoted it says:
– Low drain: Lower current carrying capacity, e.g. B. for watches with high leakage security (electrolyte caustic soda).
– High drain: higher current carrying capacity, e.g. B. for photo and remote control applications, with good leakage security (electrolyte caustic potash).
So the electrolyte also seems to have an impact on leakproofness, otherwise it probably wouldn't have been mentioned in parentheses right after. But that could also be a coincidence...but then there's no proof that it's just the gasket either, because that's not what the website says either.
Of course it's the gasket. There are also absolutely the same cells from different manufacturers (external and internal structure) but with one manufacturer they leak before installation, with the other not. Why?
The difference is the care taken with the seal.
Again, my apologies for quoting Wikipedia. Wikipedia often contradicts itself too.
Just because something isn't on the Wikipedia page doesn't mean anything.
I consider it "very daring" that there is no proof of this.
The manufacturers can all only use the same chemical composition. But some have problems, others don't. Where is the saving then?
From now on I'm out of the discussion. It's no use to me. And for the end user, in my view, enough has been said.
Yes, the internal structure is crucial for the performance of the cell.
That sure is important. But what nobody ever writes:
The sealing! That means how much was done to keep the cell tight. (does not leak)
All of us have seen cheap leaking cells. So the white crystalline edge. (Powder)
A leaking cell often ruins the technology next to it. The starting key for the car, the remote control, the clock, ...
Then you saved a few cents, but sometimes irretrievably damaged your hardware. Happened to me too.
A cheap seal against leakage, and then there's a fire on the roof. But you have to pay for that too. The buyer cannot see how much the manufacturer invests in sealing.
Hello, I bought a device from America in 2017, according to the manufacturer, LR 44 should be in there, but now it is the case that all LR 44 that I have bought and tried so far are 0,1 or 0,2 mm too narrow. I know it sounds weird but it's really like that, now someone said it could also be because it's an American product. Can that really be the reason that the LR 44 are always too small?
The designation LR44 stands for an international standard and is not a “German” thing. I would say the manufacturer of the product did not work correctly. LR44 is LR44.
But the funny thing is that the batteries that came in from the factory fit and the new ones no longer fit, even if you put them next to each other you can see that the "old ones are a little bit higher and the diameter is also a bit larger. In the electronics stores, people always look at me askance until they see it for themselves and then they always say the same thing.
Hello Bjorn! I just looked again in Google US and unfortunately only found this (translated):
Are all LR44 batteries the same size?
The LR44 battery is identical in size but differs in chemistry from silver oxide coin cells such as the SR44, SR44SW, 303, 357. Although the batteries fit into each other's devices with relative ease, it is important to use the recommended battery type for to choose your device to avoid over/under discharge.
Incorrect! The difference was and is for years or decades H stands
for high drain. The one without an H is not.
The difference is significant.
Thanks for snooping! Does this mean that these are cells that can deliver a particularly large amount of power over time? And what does the "G" in front of the "H" stand for? And how can button cells with the same battery chemistry suddenly deliver more power?
Your sentence: "And how can button cells with the same battery chemistry suddenly deliver more power?"
My answer: Quoting Wikipedia: https://de.wikipedia.org/wiki/Knopfzelle
"Low drain" vs "High drain". It's just not the same "battery" chemistry. But a different electrolyte. In addition, some things are different.
By the way: there are
PRIMARY CELLS and no batteries. This is also important to know.
SECONDARY CELLS are rechargeable batteries.
The link I gave above explains LD and HD. Which doesn't matter to most users. The main thing is that there is electricity.
Sorry for quoting Wikipedia. is not reliable but risky.
Measure the American LR44 and a European / Japanese / Chinese, ...
away. Just compare the outside dimensions. ...
I rather suspect the shaft of the cell is not in order. Just take a look. But then there's a workaround.
Great, Mr Kleinholz.
Re: the V (Varta) nomenclature using the example of V 386.
Can one unknowingly compare the types that are in the
Find web, take over SR43 in the mentioned case and
if not, which site do you recommend?
Hi Michael! Yes, if they are mentioned as a comparison type, they have the same dimensions and - this is particularly important - the same voltage. The only difference between the SR button cells is that the battery chemistry works with silver oxide. This is relatively safe against leakage, which is why they are often used for expensive watches and similar things. So yes, you can use the V386 and the SR43 equally.
Hello everyone, another variant…. LR44 GH in a solar cell calculator. Couldn't be switched on anymore, exchanged button cell for LR44, works again. But what bothers me is the question, is an additional battery installed and is it probably too weak, so that the LR44 cell bears the main load anyway? After studying the blog intensively (thanks, great information), I assume that no matter whether LR44, LR44H or LR44GH, there is always an alkaline manganese cell that also cannot be charged. Ideas are welcome - thanks!
Hello Meinrad! I could imagine that the pocket calculator does not have a battery but a gold cap capacitor. These are such small capacitors not dissimilar to a button cell that can store some energy. That means when the thing is empty, the calculator will probably fall back to the LR44. And yes, I think this is definitely not a rechargeable button cell, because the LR at the front dictates the battery chemistry.
Hello Jens, thank you very much! That confirms my guess! Class answer.