# Which coin cell is this, and what else is it sold as?

Sheet 02 · Batteries, whichfits.uk. A Markdown copy of https://whichfits.uk/coin-cell-batteries. The page itself has the working form and the Amazon.co.uk links: link to the page, not to this copy.

A CR2032 is a DL2032 is an ECR2032, and the shop has all three on different hooks at different prices with nothing to tell you they are the same battery. The LR44 in the kitchen thermometer is also an A76 and an AG13, and if it came from Japan an L1154, and the silver one that fits the same hole is a 357, or a 303, or an SR44. There is a system under all this, and it’s a good one: the letters are the chemistry and the digits are the size, so a CR2032 is lithium, 20 millimetres across and 3.2 thick. The mess is everything the makers have painted on top. Duracell’s DL, Energizer’s ECR, Varta’s V-numbers, the AG numbers on the cheap packs, and the three-digit watch codes from before anyone agreed anything.

Type what’s stamped on the cell, or what’s on the packet in your hand, or just the digits. The sheet names the cell, lists everything else it is sold as, gives the size and the voltage, and links a pack.

## Work it out

Worked example, with the inputs the sheet opens on:

- What is stamped on the cell, or printed on the packet: CR2032

**CR2032**

3 V lithium manganese dioxide, 20 mm across and 3.2 mm thick. Also sold as DL2032, ECR2032, CR-2032, BR2032, 5004LC, SB-T15: every one of those is this cell under another maker’s name, and any of them fits. Key fobs, small remotes, trackers, scales, glucose meters, heart rate monitors, bike computers, and the motherboard. A BR2032 is a different lithium chemistry (carbon monofluoride) in the same size at the same 3 V.

From the maker’s own document: [Duracell UK: lithium coin 2032, with the makers’ names table](https://www.duracell.co.uk/product/lithium-coin-2032-batteries/).

Get CR2032 lithium coin cells, a pack of 4 on Amazon.co.uk

### The whole table

**Lithium coin, 3 V (CR)**

| Code | Also sold as | V | mm across | mm thick (or long) | Source |
| --- | --- | --- | --- | --- | --- |
| CR2032. A BR2032 is a different lithium chemistry (carbon monofluoride) in the same size at the same 3 V. | DL2032, ECR2032, CR-2032, BR2032, 5004LC, SB-T15 | 3 | 20 | 3.2 | [maker](https://www.duracell.co.uk/product/lithium-coin-2032-batteries/) |
| CR2025. Same width as a CR2032, 0.7 mm thinner: it rattles in a 2032 holder. | DL2025, ECR2025, CR-2025, 5003LC, SB-T14, 280-205 | 3 | 20 | 2.5 | [maker](https://www.duracell.co.uk/product/lithium-coin-2025-batteries/) |
| CR2016 | DL2016, ECR2016, CR-2016, BR2016, 5000LC, SB-T11, 280-202 | 3 | 20 | 1.6 | [maker](https://www.duracell.co.uk/product/lithium-coin-2016-batteries/) |
| CR2450. The fat one. | DL2450, CR2450N, 5029LC | 3 | 24.5 | 5 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| CR2430. As wide as a 2450 and 2 mm thinner. Energizer’s own sheet misprints it as IEC CR2425. | DL2430, 5011LC | 3 | 24.5 | 3 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| CR2477 | DL2477, CR2477N | 3 | 24.5 | 7.7 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| CR2354. No other names in the makers’ documents; the packet says CR2354 or nothing. | n/a | 3 | 23 | 5.4 | [maker](https://www.varta-ag.com/en/consumer/product-categories/special-batteries/lithium-coin) |
| CR2325 | BR2325, SB-T12 | 3 | 23 | 2.5 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| CR2320 | BR2320, 280-201 | 3 | 23 | 2 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| CR1632 | DL1632 | 3 | 16 | 3.2 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| CR1620 | DL1620, 5009LC, 280-208 | 3 | 16 | 2 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| CR1616 | DL1616, BR1616, 280-209 | 3 | 16 | 1.6 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| CR1220 | DL1220, BR1220, 5012LC, SB-T13 | 3 | 12.5 | 2 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| CR1216 | DL1216, BR1216, 5034LC | 3 | 12.5 | 1.6 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| CR1225 | BR1225, 5020LC | 3 | 12.5 | 2.5 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| CR1025 | 5033LC | 3 | 10 | 2.5 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| CR1/3N. A third of an N battery, in lithium: a short cylinder, not a coin. | CR11108, 2L76, DL1/3N, K58L, 5008L, KL-13N | 3 | 11.6 | 10.8 | [maker](https://www.duracell.co.uk/product/ultra-lithium-1-3n-batteries/) |

**Alkaline button, 1.5 V (LR)**

| Code | Also sold as | V | mm across | mm thick (or long) | Source |
| --- | --- | --- | --- | --- | --- |
| LR44. The 357, 303 and SR44 are the silver oxide cell in this size: it fits the same hole and holds its voltage better. Energizer lists them among what its A76 replaces. | A76, 76A, AG13, SG13, L1154, V13GA, 157, S76, PX76A, V136A, 1166A | 1.5 | 11.6 | 5.4 | [maker](https://www.duracell.co.uk/product/alkaline-lr44-batteries/) |
| LR43. The silver version is the 386 or 301 (SR43). | 186 | 1.5 | 11.6 | 4.2 | [maker](https://data.energizer.com/pdfs/186.pdf) |
| LR54. Maxell prints LR1130 for the same cell. The silver version is the 389 or 390. | 189, LR1130 | 1.5 | 11.6 | 3.05 | [maker](https://data.energizer.com/pdfs/189.pdf) |
| LR41. The silver version is the 392 or 384 (SR41). | 192 | 1.5 | 7.9 | 3.6 | [maker](https://data.energizer.com/pdfs/192.pdf) |
| LR55. The silver version is the 391 or 381. | 191, LR1120 | 1.5 | 11.6 | 2.1 | [maker](https://data.energizer.com/pdfs/191.pdf) |

**Silver oxide watch cells, 1.55 V (SR)**

| Code | Also sold as | V | mm across | mm thick (or long) | Source |
| --- | --- | --- | --- | --- | --- |
| SR44. Same size as an LR44; this is the one a watch wants. | 303, 357, SR44SW, SR44W, SR1154, EPX76, V303, V357, D303/357, 280-08, 280-62, SB-A9, SB-B9, 1131SO | 1.55 | 11.6 | 5.4 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR43 | 301, 386, SR43SW, SR43W, SR1142, V301, V386, D301/386, 280-01, 280-41, SB-A8, SB-B8 | 1.55 | 11.6 | 4.2 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR1136 | 344, 350, SR1136SW, SR1136W, SR42, 387S, V344, V350 | 1.55 | 11.6 | 3.6 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR1130. Same size as an LR54 / LR1130. | 390, 389, SR1130SW, SR1130W, SR54, V389, V390, D389/390, 280-15, 280-24, SB-AU, SB-BU, 1138SO | 1.55 | 11.6 | 3.05 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR1120 | 381, 391, SR1120SW, SR1120W, SR55, SR1121, V381, V391, D381/391, 280-27, 280-30, SB-AS, SB-BS | 1.55 | 11.6 | 2.05 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR1116 | 366, 365, SR1116SW, SR1116W, 280-46, V366 | 1.55 | 11.6 | 1.6 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR41. Same size as an LR41. | 384, 392, SR41SW, SR41W, SR736, V384, V392, D384/392, 280-13, 280-18, SB-A1, SB-B1, 1135SO | 1.55 | 7.9 | 3.6 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR754 | 309, 393, SR754SW, SR754W, SR48, V309, V393, D309/393, SB-B3 | 1.55 | 7.9 | 5.4 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR731 | 329, SR731SW, V329 | 1.55 | 7.9 | 3.1 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR726 | 397, 396, SR726SW, SR726W, SR59, V397, V396, D396/397, 280-28, 280-52, SB-AL, SB-BL | 1.55 | 7.9 | 2.6 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR721 | 362, 361, SR721SW, SR721W, SR58, V362, V361, D361/362, 280-29, 280-53, SB-AK, SB-BK | 1.55 | 7.9 | 2.1 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR716 | 315, 314, SR716SW, SR716W, SR67, V315, 280-56, SB-AT | 1.55 | 7.9 | 1.65 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR714 | 341, SR714SW, V341 | 1.55 | 7.9 | 1.4 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR712 | 346, SR712SW, V346, 280-66, SB-DH | 1.55 | 7.9 | 1.2 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR936 | 394, 380, SR936SW, SR936W, V394, D394, 280-17, SB-A4 | 1.55 | 9.5 | 3.6 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR927 | 395, 399, SR927SW, SR927W, SR57, V395, V399, D395/399, 280-48, 280-44, SB-AP, SB-BP | 1.55 | 9.5 | 2.7 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR920 | 371, 370, SR920SW, SR920W, SR69, SR921, V371, V370, D370/371, 280-31, 280-51, SB-AN, SB-BN | 1.55 | 9.5 | 2 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR916 | 373, SR916SW, SR68, V373, 280-45, SB-AJ | 1.55 | 9.5 | 1.65 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR626 | 377, 376, SR626SW, SR626W, SR66, V377, D377, D376, 280-39, SB-AW, 1176SO | 1.55 | 6.8 | 2.6 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR621 | 364, 363, SR621SW, SR621W, SR60, V364, D364, 280-34, SB-AG, 1175SO | 1.55 | 6.8 | 2.15 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR616 | 321, SR616SW, SR65, V321, 280-73, SB-AF | 1.55 | 6.8 | 1.65 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR614 | 339, SR614SW, V339 | 1.55 | 6.8 | 1.4 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR527 | 319, SR527SW, SR64, V319, 280-60, SB-AE | 1.55 | 5.8 | 2.7 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR521 | 379, SR521SW, SR63, V379, 280-59, SB-AC, 1191SO | 1.55 | 5.8 | 2.15 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR516 | 317, SR516SW, SR62, V317, 280-58, SB-AR | 1.55 | 5.8 | 1.65 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR512 | 335, SR512SW, V335, 280-68, SB-AB | 1.55 | 5.8 | 1.25 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |
| SR416 | 337, SR416SW | 1.55 | 4.8 | 1.6 | [maker](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621) |

**Zinc air hearing aid cells, 1.45 V (PR)**

| Code | Also sold as | V | mm across | mm thick (or long) | Source |
| --- | --- | --- | --- | --- | --- |
| PR70 | 10, size 10, ZA10, DA10, AC10, P10, PR10H, 7005ZD | 1.45 | 5.8 | 3.6 | [maker](https://data.energizer.com/pdfs/ENR_AC10E-1.pdf) |
| PR41 | 312, size 312, ZA312, DA312, AC312, P312, PR312H, 7002ZD | 1.45 | 7.9 | 3.6 | [maker](https://data.energizer.com/pdfs/ENR_AC312E-1.pdf) |
| PR48 | 13, size 13, ZA13, DA13, AC13, P13, PR13H, 7000ZD | 1.45 | 7.9 | 5.4 | [maker](https://data.energizer.com/pdfs/ENR_AC13E-1.pdf) |
| PR44 | 675, size 675, ZA675, DA675, AC675, P675, PR675H, 7003ZD | 1.45 | 11.6 | 5.4 | [maker](https://data.energizer.com/pdfs/ENR_AC675E-1.pdf) |

**Not coins, but on the same hooks: the 12 V and 6 V stacks and the N**

| Code | Also sold as | V | mm across | mm thick (or long) | Source |
| --- | --- | --- | --- | --- | --- |
| A23. Twelve volts in a thing the size of a short AAA. Not an N battery, which is 1.5 V and a shade fatter. | MN21, 23A, V23GA, LRV08, L1028, 8LR932, 23AE, 23AF, GP23A, K23A, 1181A, DL23 | 12 | 10.3 | 28.5 | [maker](https://www.duracell.co.uk/product/alkaline-mn21-batteries/) |
| A27. Thinner than an A23; same 12 V. | MN27, 27A, L828, GP27A, V27GA, G27A, EL812, MS27, 8LR732 | 12 | 8 | 28.2 | [maker](https://data.energizer.com/pdfs/a27.pdf) |
| 4LR44. Energizer’s sheet says what it is: four LR44 cells in series. | A544, 476A, PX28A, L1325, 4G13, V4034PX, K28L, GP476, V28PX, 1414A | 6 | 13 | 25.2 | [maker](https://data.energizer.com/pdfs/a544.pdf) |
| 2CR1/3N. The lithium cell in the 4LR44’s can. | 28L, 2CR11108, L544, PX28L, V28PXL, 2CR13252 | 6 | 13 | 25.2 | [maker](https://www.duracell.co.uk/product/high-power-lithium-28l-batteries/) |
| LR1. The N. Not an A23: that one is 12 V and thinner. | N, E90, MN9100, 910A, 4001, 810, AM5, UM-5, Lady | 1.5 | 12 | 30.2 | [maker](https://www.duracell.co.uk/product/alkaline-n-batteries/) |

58 cells. Every row is from the maker’s own datasheet or product page, which is where the other names come from; the sheet adds nothing to them. Two cells the same size in different chemistries (an LR44 and an SR44) are two rows, because they are not quite the same battery, even though one will fit where the other was.

## Reading the code

Two letters, then digits. The letters are the chemistry, and every maker’s datasheet pairs them the same way: CR is lithium manganese dioxide at 3 volts, BR is a cousin lithium chemistry at the same 3 volts and the same sizes, LR is alkaline at 1.5, SR is silver oxide at 1.55, PR is zinc air at 1.45 for hearing aids. The digits are the size. No maker writes the rule out in a sentence, but every table they print lines up the same way: 20.0 by 3.2 millimetres beside CR2032, 20.0 by 2.5 beside CR2025, 6.8 by 2.6 beside SR626, 9.5 by 2.0 beside SR920. Width first, then thickness in tenths. The exception is the two-digit button cells, LR44, SR44, LR41, SR43, where the number is just a number from an older list: an LR44 is 11.6 across and 5.4 thick, and nothing about 44 tells you that.

A silver oxide watch cell comes in two versions of every size, and the letters on the end say which. Maxell’s wording: the low-drain type, SW, for things that run a long time on a light load, an analogue watch; the high-drain type, W, for things that pull short heavy loads, a digital watch with a backlight and an alarm, a stopwatch, medical kit. Energizer says the same in chemistry: sodium hydroxide electrolyte for the low drain, potassium hydroxide for the high. The three-digit codes split the same way, so a 377 is an SR626SW and a 376 is an SR626W. Same cell to look at. Buy the one the watch had in it.

## DL, ECR, V, AG and the three-digit numbers

DL is Duracell’s prefix: its own page says a Duracell 2032 is ‘equivalent to DL 2032, CR 2032’, which is a maker telling you its name and the standard name are one thing. ECR is Energizer’s, and Duracell’s UK pages print a table of them, industry name, Energizer name, Varta name, Panasonic name, four columns for one battery. V is Varta: V13GA for the LR44, V357 for the 357. The three-digit numbers, 357, 377, 364, 392, are the watch trade’s, from before the IEC codes, and Renata’s cross-reference chart lines them up against ten makers, with Seiko’s SB- codes and Citizen’s 280- codes alongside for anyone taking a watch back apart. AG13, SG13 and the rest of the AG numbers are the cheap packs’ own system and the big makers don’t print them, with one exception: Energizer lists AG13 and SG13 among what its A76 replaces, which is the only place on a maker’s page you’ll find them admitted to.

## Alkaline or silver in the same hole

An LR44 and an SR44 are the same 11.6 by 5.4 millimetres, and Energizer’s page lists the 357, the 303 and the SR44 among what its alkaline A76 replaces, so one goes where the other was. They are not the same battery. Silver oxide sits at 1.55 volts and holds it to the end; alkaline starts at 1.5 and sags as it goes. A watch wants silver, and Maxell files every SW cell under analogue watches and thermometers for that reason. A toy, a calculator, a laser level or a kitchen thermometer is fine on alkaline, and alkaline is what the big packs are. If the thing has a watch movement or a meter in it, pay for the silver. If it has a motor or an LED in it, don’t.

## Thickness is the fit

Energizer prints the same warning on every coin cell page: coin lithium batteries are not interchangeable, the diameter and the thickness both vary by designation, a compartment may be sized so that a different cell fits, and you should use the one the device maker specified. That’s the CR2032 and CR2025 problem in a paragraph: same 20 millimetres across, 0.7 of a millimetre apart in thickness, the thin one rattles in the fat one’s holder and loses contact on a bump, the fat one won’t let the case shut. The key fob sheet has four of them drawn in section. Match the last two digits.

## Children

The Child Accident Prevention Trust’s page is short and worth the minute. A button battery can badly hurt or kill a small child who swallows one, and it looks like a sweet. If you think a child has swallowed one, go straight to A&E or call an ambulance; don’t wait for symptoms. Keep the spares up high and out of reach, and get rid of the dead ones the day they come out, because a flat cell is still dangerous. The 20 millimetre lithium coins on this sheet are the ones the child-safe packaging is for. Buy the packs that make you cut the card.

## Where to get it

- Get CR2032 lithium coin cells, a pack of 4 on Amazon.co.uk. The common one: car keys, scales, trackers, the motherboard.
- Get CR2025 lithium coin cells, a pack of 4 on Amazon.co.uk. Same width as a 2032, thinner.
- Get CR2016 lithium coin cells, a pack of 4 on Amazon.co.uk. The thin one. Some fobs take two.
- Get CR2450 lithium coin cells, a pack of 2 on Amazon.co.uk. The fat one.
- Get Duracell CR2430 lithium coin cells, a pack of 4 on Amazon.co.uk. As wide as a 2450, thinner. Not the same thing.
- Get CR1632 lithium coin cells, a pack of 4 on Amazon.co.uk
- Get CR1620 lithium coin cells, a pack of 2 on Amazon.co.uk
- Get CR1616 lithium coin cells, a pack of 3 on Amazon.co.uk
- Get CR1220 lithium coin cells, a pack of 3 on Amazon.co.uk
- Get Duracell LR44 alkaline button cells, a pack of 4 on Amazon.co.uk. Thermometers, toys, calculators, the laser level.
- Get Energizer 357/303 silver oxide cells (SR44), a card of 5 on Amazon.co.uk. The silver version of the LR44 size, for watches and meters.
- Get Energizer 392/384 silver oxide cells (SR41), a card of 5 on Amazon.co.uk
- Get LR41 (AG3) alkaline button cells, a pack of 16 on Amazon.co.uk. Laser pointers, thermometers, the small toys.
- Get Duracell LR54 / LR1130 (AG10) button cells, a pack of 6 on Amazon.co.uk
- Get Duracell 377 (SR626SW) silver oxide watch cells, a pack of 3 on Amazon.co.uk. The commonest watch battery.
- Get Renata 364 (SR621SW) silver oxide watch cells, a pack of 2 on Amazon.co.uk
- Get Duracell MN21 (A23) 12 V batteries, a pack of 2 on Amazon.co.uk. Doorbell pushes, garage remotes, the wireless light switch.
- Get Duracell MN27 (A27) 12 V battery on Amazon.co.uk. The thinner 12 V one, in car alarm remotes.
- Get Energizer 4LR44 (A544) 6 V batteries, a pack of 10 on Amazon.co.uk. Dog collars and old cameras.
- Get Duracell CR1/3N (2L76) 3 V lithium cells, a pack of 2 on Amazon.co.uk. Gun sights, some alarm fobs, old cameras.
- Get Duracell size 312 hearing aid batteries, a pack of 6 on Amazon.co.uk. The brown tab.
- Get Duracell size 13 hearing aid batteries, a pack of 6 on Amazon.co.uk. The orange tab.
- Get Duracell N (LR1) batteries, a pack of 4 on Amazon.co.uk. The stubby one, 1.5 V.

Those links go to Amazon.co.uk and earn this site a commission if you buy. The price is the same either way, and nothing on this sheet changes because of it.

## Where the numbers come from

1. [CR2032 product datasheet, and the CR, LR, SR, PR and A-series sheets alongside it at the same address](https://data.energizer.com/pdfs/cr2032.pdf), Energizer. Each prints the IEC and ANSI designations, the chemistry, the nominal voltage and the diameter and height: CR2032 is Li/MnO2, 3.0 V, 20.00 by 3.20 mm; A76 is MnO2, 1.5 V, IEC LR44, 11.60 by 5.40; 357/303 is Zn/Ag2O, 1.55 V, IEC SR44; the size 10 zinc air is 1.45 V, IEC PR70 (read 17 October 2026)
2. [Cross reference guide (in the consumer brochure)](https://www.renata.com/en/downloadfile/consumer-brochure/?fileid=afa6a8d1941d7e8af92e25b621), Renata. Every watch cell against Energizer, Maxell, Panasonic, Murata, Toshiba, Varta, Rayovac, Duracell, Timex, Citizen and Seiko names and the IEC 60086-3 code; the hearing aid table against Rayovac, Activair, Energizer, Duracell, Power One and Panasonic (read 17 October 2026)
3. [Scope of supply, consumer](https://www.renata.com/en/downloadfile/renata-scope-of-supply-consumer/?fileid=41651e3b86213c5876143190a3), Renata. Diameter and height for every cell with its IEC code; the silver oxide cells filed as low drain (SW) and high drain (W) at 1.55 V; zinc air at 1.45 V (read 17 October 2026)
4. [Silver oxide batteries (SR) and alkaline button batteries (LR)](https://biz.maxell.com/en/primary_batteries/sr_coin.html), Maxell. The low-drain SW type for analogue watches, thermometers and measuring tools; the high-drain W type for digital watches with backlights and alarms, stopwatches, medical equipment; sizes for every cell (read 17 October 2026)
5. [Coin type lithium manganese dioxide batteries (CR)](https://biz.maxell.com/en/primary_batteries/cr_coin.html), Maxell. A 3 V system; CR2032 20.0 mm by 3.2 mm, CR2025 20.0 by 2.5, CR2016 20.0 by 1.6 (read 17 October 2026)
6. [Sales program and technical handbook, primary lithium cells](https://www.varta-ag.com/fileadmin/varta_microbattery/downloads/service/battery-documentation/lithium-cells/HANDBOOK_Primary_Lithium_Cells_en.pdf), Varta. Type number, IEC designation and minimum and maximum diameter and height for every CR cell; CR 1/3 N is IEC CR 11108 (read 17 October 2026)
7. [Lithium coin cells](https://www.varta-ag.com/en/consumer/product-categories/special-batteries/lithium-coin), Varta. CR2354: 23 by 5.4 mm, 3 V (read 17 October 2026)
8. [Silver oxide (Zn/Ag2O) application manual](https://data.energizer.com/pdfs/silveroxide_appman.pdf), Energizer. Operating voltage 1.55 V or more; sodium hydroxide cells for low continuous drains over years (analogue watches), potassium hydroxide cells for low drains with high pulses (backlit LCD watches, alarms, calculators) (read 17 October 2026)
9. [Lithium coin 2032, 2025 and 2016 product pages](https://www.duracell.co.uk/product/lithium-coin-2032-batteries/), Duracell UK. Each with the table of names (industry CR2032, Energizer ECR2032, Varta CR2032, Panasonic CR-2032) and what the cell is suitable for (read 17 October 2026)
10. [CR2032 lithium coin button battery](https://duracell.com/products/cr-2032-lithium-coin-button-battery), Duracell (US). Equivalent to DL 2032, CR 2032; 3 volt (read 17 October 2026)
11. [Alkaline LR44 product page](https://www.duracell.co.uk/product/alkaline-lr44-batteries/), Duracell UK. Industry name LR44, Energizer name A76, Varta and Panasonic name V13GA; for toys, calculators and measurement devices (read 17 October 2026)
12. [76A alkaline battery and 303/357 silver oxide battery pages](https://duracell.com/products/coin-button-303357-battery), Duracell (US). 303/357 equivalent to SR44, SR44W, EPX76, SR44SW, 303, 357, D303/357, V303, V357, SR1154; 76A equivalent to LR44, A76, PX76A, V136A (read 17 October 2026)
13. [Alkaline MN21 product page](https://www.duracell.co.uk/product/alkaline-mn21-batteries/), Duracell UK. 12 V; Energizer name A23, Varta and Panasonic name V23GA; for wireless remotes, doorbells and alarms. The US page adds 23AF, 23AE (read 17 October 2026)
14. [Ultra lithium 1/3N, high power lithium 28L and alkaline N product pages](https://www.duracell.co.uk/product/ultra-lithium-1-3n-batteries/), Duracell UK. 1/3N for red-dot and laser sights, glucose monitors and dog collars; 28L for sensors, keyless locks and smoke detectors; N is LR1, Energizer E90 (read 17 October 2026)
15. [IEC 60086-1:2026, Primary batteries, Part 1: General (abstract)](https://webstore.iec.ch/en/publication/113923), IEC webstore. Standardises primary batteries for dimensions, nomenclature, terminals and markings; specifies the system letters and nominal voltages so that batteries from different makers are interchangeable in form, fit and function. The standard itself is paid for; the sheet reads the makers’ designations (read 17 October 2026)
16. [Button battery safety](https://www.capt.org.uk/button-batteries), Child Accident Prevention Trust. Can badly hurt or kill a small child who swallows one; go straight to A&E or call an ambulance; store up high; dispose of used ones as soon as you can (read 17 October 2026)

Data on this sheet last changed 17 October 2026.

**Other sheets**

- Sheet 01 [Which battery does my car key fob take?](https://whichfits.uk/key-fob-battery)
- Sheet 04 [What battery is this?](https://whichfits.uk/battery-size-chart)
- Sheet 03 [What batteries does it take?](https://whichfits.uk/what-batteries-does-it-take)

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