Omikuji Tools Life & Calc

Battery Size Chart

Search by designation, alternative name or use, and see what is the same size and voltage.

✨ What you can do

  • Search by designation, alternative name or use - AG13 and A76 both find LR44
  • See dimensions (diameter x height) and nominal voltage for every entry
  • Get the cells that are the same size and voltage, as swap candidates
  • Learn to read designations like CR2032, where the digits are the dimensions

🪄 Good for

Replacing a battery you cannot identify

Type whatever is printed on the old cell and get its size and the alternatives.

Choosing a watch battery

Compare the LR and SR versions of the same size before buying.

Checking what is in the drawer

Match the dimensions of a spare cell against what the device asks for.

Hearing aid colour codes

Look up PR41 (brown), PR48 (orange), PR70 (yellow) and PR44 (blue) by their tab colour.

🔒 Privacy

Everything runs in your browser. What you type is never sent to a server and is not stored.

❓ FAQ

Can I use LR44 in place of SR44?

They are the same size (11.6 x 5.4mm) so it will fit, but they behave differently. The alkaline LR44 starts at 1.5V and drifts down; the silver-oxide SR44 holds 1.55V almost to the end. Watches and light meters usually specify SR for that reason. For a toy or a calculator, LR is fine.

Can CR2025 replace CR2032?

Both are 20mm across; the difference is 3.2mm versus 2.5mm thick. The thinner cell may sit loosely and holds less energy. If the device specifies CR2032, use CR2032.

Can NiMH rechargeables replace disposable cells?

They are the same size but nominally 1.2V rather than 1.5V. Most devices cope, but anything that judges remaining charge from voltage may report empty early. Follow the manufacturer if a device says not to use rechargeables.

Are AA and 'single-3' the same?

Yes. Japan's 'tan-san' size, the IEC's LR6 (alkaline) or R6 (zinc-carbon), and the ANSI 'AA' all describe the same 14.5 x 50.5mm cell.

What happens when I peel the tab off a hearing aid battery?

Zinc-air cells react with oxygen from the air, so peeling the tab starts the discharge. Leave it on until you are ready to use the battery, and give it about a minute after peeling for the voltage to settle.

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Group

LR20

D Alkaline
Size
Diameter 34.2mm × Height 61.5mm
Voltage
1.5 V
Also called
R20 / D / MN1300 / 13A

Typically used in: Large torches, heaters, gas stove igniters

LR14

C Alkaline
Size
Diameter 26.2mm × Height 50mm
Voltage
1.5 V
Also called
R14 / C / MN1400 / 14A

Typically used in: Radios, larger toys, lanterns

LR6

AA Alkaline
Size
Diameter 14.5mm × Height 50.5mm
Voltage
1.5 V
Also called
R6 / AA / MN1500 / 15A / FR6 / HR6

Typically used in: The most common size: remotes, clocks, game controllers

LR03

AAA Alkaline
Size
Diameter 10.5mm × Height 44.5mm
Voltage
1.5 V
Also called
R03 / AAA / MN2400 / 24A / HR03

Typically used in: Small remotes, thermometers, wireless mice

LR1

N Alkaline
Size
Diameter 12mm × Height 30.2mm
Voltage
1.5 V
Also called
R1 / N / E90 / 910A

Typically used in: Small instruments, some cameras, penlights

LR8D425

AAAA Alkaline
Size
Diameter 8.3mm × Height 42.5mm
Voltage
1.5 V
Also called
AAAA / LR61 / 25A

Typically used in: Stylus pens, slim LED lights

HR6

AA (NiMH) NiMH (rechargeable) rechargeable
Size
Diameter 14.5mm × Height 50.5mm
Voltage
1.2 V
Also called
AA / eneloop

Typically used in: Replaces alkaline AA; 1.2V nominal, so devices that judge charge by voltage behave differently

HR03

AAA (NiMH) NiMH (rechargeable) rechargeable
Size
Diameter 10.5mm × Height 44.5mm
Voltage
1.2 V
Also called
AAA

Typically used in: Replaces alkaline AAA

CR123A

Lithium
Size
Diameter 17mm × Height 34.5mm
Voltage
3 V
Also called
CR17345 / 123A / DL123A

Typically used in: Film cameras, security sensors, high-output torches

CR2

Lithium
Size
Diameter 15.6mm × Height 27mm
Voltage
3 V
Also called
CR15H270 / DLCR2

Typically used in: Compact cameras, laser rangefinders

6LR61

9V (PP3) Alkaline
Size
26.5 × 17.5 × 48.5 mm
Voltage
9 V
Also called
006P / 9V / PP3 / 6F22 / MN1604 / 1604A

Typically used in: Smoke alarms, guitar pedals, multimeters

CR2032

Lithium
Size
Diameter 20mm × Height 3.2mm
Voltage
3 V
Also called
DL2032 / BR2032 / 5004LC

Typically used in: PC motherboards, car key fobs, body scales

CR2025

Lithium
Size
Diameter 20mm × Height 2.5mm
Voltage
3 V
Also called
DL2025 / BR2025

Typically used in: Key fobs, calculators, small remotes

CR2016

Lithium
Size
Diameter 20mm × Height 1.6mm
Voltage
3 V
Also called
DL2016 / BR2016

Typically used in: Slim remotes, keychain lights

CR2450

Lithium
Size
Diameter 24.5mm × Height 5mm
Voltage
3 V
Also called
DL2450

Typically used in: Key fobs, outdoor sensors, LED candles

CR2477

Lithium
Size
Diameter 24.5mm × Height 7.7mm
Voltage
3 V
Also called
DL2477

Typically used in: Sensors that must run for years

CR1220

Lithium
Size
Diameter 12.5mm × Height 2mm
Voltage
3 V
Also called
DL1220 / BR1220

Typically used in: Small clocks, thermometers, organisers

CR1216

Lithium
Size
Diameter 12.5mm × Height 1.6mm
Voltage
3 V
Also called
DL1216

Typically used in: Very slim devices

CR1620

Lithium
Size
Diameter 16mm × Height 2mm
Voltage
3 V
Also called
DL1620

Typically used in: Key fobs, small remotes

CR1632

Lithium
Size
Diameter 16mm × Height 3.2mm
Voltage
3 V
Also called
DL1632

Typically used in: Key fobs, tyre pressure sensors

CR2354

Lithium
Size
Diameter 23mm × Height 5.4mm
Voltage
3 V

Typically used in: Industrial and some automotive devices

LR44

Alkaline
Size
Diameter 11.6mm × Height 5.4mm
Voltage
1.5 V
Also called
AG13 / A76 / L1154 / 357A / V13GA
Same size and voltage
SR44 (1.55V) / PR44 (1.4V)

Typically used in: Calculators, toys, laser pointers

SR44

Silver oxide
Size
Diameter 11.6mm × Height 5.4mm
Voltage
1.55 V
Also called
357 / 303 / SR44W / SR44SW / V357
Same size and voltage
LR44 (1.5V) / PR44 (1.4V)

Typically used in: Watches and light meters. Same size as LR44 but holds its voltage, which watches prefer

LR41

Alkaline
Size
Diameter 7.9mm × Height 3.6mm
Voltage
1.5 V
Also called
AG3 / 192 / L736 / 384A
Same size and voltage
SR41 (1.55V) / PR41 (1.4V)

Typically used in: Thermometers, small lights

SR41

Silver oxide
Size
Diameter 7.9mm × Height 3.6mm
Voltage
1.55 V
Also called
384 / 392 / SR41W / SR41SW
Same size and voltage
LR41 (1.5V) / PR41 (1.4V)

Typically used in: Watches, digital thermometers

LR43

Alkaline
Size
Diameter 11.6mm × Height 4.2mm
Voltage
1.5 V
Also called
AG12 / 186 / L1142
Same size and voltage
SR43 (1.55V)

Typically used in: Calculators, small devices

SR43

Silver oxide
Size
Diameter 11.6mm × Height 4.2mm
Voltage
1.55 V
Also called
301 / 386 / SR43W / SR43SW
Same size and voltage
LR43 (1.5V)

Typically used in: Watches

LR1130

LR1130 (LR54) Alkaline
Size
Diameter 11.6mm × Height 3.1mm
Voltage
1.5 V
Also called
AG10 / 189 / L1131 / LR54
Same size and voltage
SR1130 (1.55V)

Typically used in: Calculators, kitchen timers

SR1130

SR1130 (SR54) Silver oxide
Size
Diameter 11.6mm × Height 3.1mm
Voltage
1.55 V
Also called
389 / 390 / SR54
Same size and voltage
LR1130 (1.5V)

Typically used in: Watches

LR1120

LR1120 (LR55) Alkaline
Size
Diameter 11.6mm × Height 2.1mm
Voltage
1.5 V
Also called
AG8 / 191 / LR55

Typically used in: Small toys, keychains

SR626SW

Silver oxide
Size
Diameter 6.8mm × Height 2.6mm
Voltage
1.55 V
Also called
377 / SR66 / AG4 / LR626

Typically used in: The most common watch battery size

SR621SW

Silver oxide
Size
Diameter 6.8mm × Height 2.1mm
Voltage
1.55 V
Also called
364 / SR60 / AG1 / LR621

Typically used in: Slim watches

SR920SW

Silver oxide
Size
Diameter 9.5mm × Height 2.1mm
Voltage
1.55 V
Also called
371 / SR69 / AG6 / LR920

Typically used in: Watches

SR927SW

Silver oxide
Size
Diameter 9.5mm × Height 2.7mm
Voltage
1.55 V
Also called
395 / 399 / SR57 / AG7 / LR927

Typically used in: Watches, often those with a sweep second hand

PR41

PR41 (brown) Zinc-air
Size
Diameter 7.9mm × Height 3.6mm
Voltage
1.4 V
Also called
312 / PR312
Same size and voltage
LR41 (1.5V) / SR41 (1.55V)

Typically used in: In-ear and behind-the-ear hearing aids; peeling the tab starts the reaction

PR48

PR48 (orange) Zinc-air
Size
Diameter 7.9mm × Height 5.4mm
Voltage
1.4 V
Also called
13 / PR13

Typically used in: Behind-the-ear hearing aids

PR70

PR70 (yellow) Zinc-air
Size
Diameter 5.8mm × Height 3.6mm
Voltage
1.4 V
Also called
10 / PR10

Typically used in: Small in-ear hearing aids

PR44

PR44 (blue) Zinc-air
Size
Diameter 11.6mm × Height 5.4mm
Voltage
1.4 V
Also called
675 / PR675
Same size and voltage
LR44 (1.5V) / SR44 (1.55V)

Typically used in: Higher-output hearing aids

How the designations work

  • The first letter is the chemistry: L alkaline, S silver oxide, C lithium manganese dioxide, B lithium carbon monofluoride, P zinc-air, H NiMH, F lithium iron.
  • The R means round. The 9V block 6LR61 is literally six LR61 cells in series.
  • A four-digit number such as CR2032 is the size itself: 20mm across, 3.2mm thick. CR2016 is the same diameter at half the thickness.
  • The numbers in LR44 and SR44 are IEC catalogue numbers, not dimensions - nearby numbers are not similar sizes.