In Fortune Electronics | Global Electronic Components Distributor

Service Hotline 00852-69118296

Home > Blogs

Button Cell Battery Equivalent Chart

6/27/2026 3:33:17 AM

Button cell battery equivalent chart

The code printed on a button cell is only the starting point. Before replacing it, check five things: voltage, diameter, height, chemistry and the way the device uses power. Two cells can look almost identical and still behave differently in a watch, meter, remote, toy, key fob or medical device.

Use this chart to narrow the replacement, then confirm the original device manual or the battery holder marking before buying in volume.

Single coin cell in a PCB battery holder showing contact fit, holder height and board placement

Quick answer

Many button cells have common equivalent codes, but "equivalent" does not always mean "identical." LR44 and AG13 are usually treated as the same 1.5V alkaline size class. SR44 and 357 are close in size but use silver oxide chemistry. CR2450 and CR2032 are both 3V lithium coin cells, but they are different sizes. A23 is not a coin cell. It is a small 12V alkaline battery.

Popular battery replacement guides

Start with these related battery replacement guides:

LR44 battery equivalent (scheduled for 2026-07-01)
LR44 vs 357 battery (scheduled for 2026-07-03)

Additional guides will cover AG13, CR2450, CR2032, A23, CR1620 and CR1220 replacement questions as the battery reference library expands.

Button cell equivalent chart

Battery code	Common related codes	Nominal voltage	Chemistry	Typical size class	Common uses	Replacement note
LR44	AG13, A76, L1154, LR1154	1.5V	Alkaline	About 11.6 x 5.4 mm	Toys, calculators, small lights, thermometers	Often interchangeable within the LR44/AG13/A76 alkaline group
AG13	LR44, A76, L1154	1.5V	Alkaline	About 11.6 x 5.4 mm	Toys, LED lights, small remotes	Usually the same practical replacement class as LR44
SR44	357, 303, SR1154	1.55V	Silver oxide	About 11.6 x 5.4 mm	Watches, meters, precision devices	Similar size class as LR44, but different discharge behavior
357	SR44, 303	1.55V	Silver oxide	About 11.6 x 5.4 mm	Watches, calipers, medical devices	Better voltage stability than LR44 in many precision loads
CR2450	DL2450, ECR2450, BR2450	3V	Lithium coin cell family	24.5 x 5.0 mm class	Key fobs, memory backup, meters	Do not replace with CR2032 unless the holder and device allow it
CR2032	DL2032, ECR2032, BR2032	3V	Lithium coin cell family	20.0 x 3.2 mm class	Motherboards, remotes, sensors	Same size class as DL2032; not the same size as CR2450
A23	23A, MN21, 8LR932, V23GA, GP23A	12V	Alkaline	About 10.3 x 28.5 mm	Garage remotes, doorbells, RF devices	A 12V cylindrical battery, not a 3V coin cell
CR1620	DL1620, ECR1620, BR1620	3V	Lithium coin cell family	16.0 x 2.0 mm class	Watches, remotes, small electronics	Check thickness before replacing with CR1616 or CR1632
CR1220	DL1220, ECR1220, BR1220	3V	Lithium coin cell family	12.5 x 2.0 mm class	Watches, LED products, small memory backup	Same voltage as many CR cells, but much smaller

How to read battery codes

Battery codes usually say something about chemistry and size.

Code pattern	What it usually means	Example	Practical meaning
LR	Alkaline round cell	LR44	1.5V alkaline button cell
SR	Silver oxide round cell	SR44	1.55V silver oxide button cell
CR	Lithium manganese dioxide round cell	CR2032	3V lithium coin cell
BR	Lithium carbon monofluoride round cell	BR2032	Same size pattern as CR, but different chemistry behavior
First two digits in a CR code	Approximate diameter in millimeters	CR2032	About 20 mm diameter
Last two digits in a CR code	Approximate height in tenths of a millimeter	CR2032	About 3.2 mm high

The CR pattern is useful, but it is not a license to swap cells by voltage alone. CR2450 and CR2032 share a 3V class. They do not share the same diameter, thickness or capacity.

Side view of one coin cell holder on a PCB showing holder clearance, contact spring and battery thickness

The three replacement checks that matter

1. Voltage must match the device requirement

Most alkaline button cells in the LR/AG group are 1.5V. Silver oxide versions such as SR44 or 357 are usually 1.55V. CR coin cells are 3V. A23 batteries are 12V. That difference is not small.

If the device was designed for a 3V CR2032, a 1.5V LR44 is not a substitute. If a remote expects a 12V A23, a 3V coin cell will not run it.

2. Size must match the holder

Height causes many replacement mistakes. CR2450 and CR2032 are both lithium coin cells, but CR2450 is much thicker. A thicker cell can bend a contact or keep the cover from closing. A thinner cell can make intermittent contact.

3. Chemistry changes performance

LR44 and 357 are often grouped together because they share a similar size class. The real difference is chemistry. LR44 is alkaline. 357 and SR44 are silver oxide. Silver oxide cells usually hold voltage more steadily during discharge, which is why they are common in watches, calipers and some measurement devices.

Quick compatibility matrix

Replacement question	Short answer	Why
Can AG13 replace LR44?	Usually yes	They are commonly used as equivalent alkaline button cells
Can 357 replace LR44?	Often physically, but not always necessary	357 is silver oxide and has a different discharge curve
Can LR44 replace 357?	Sometimes as a temporary replacement	Precision devices may prefer 357/SR44
Can CR2032 replace CR2450?	Usually no	CR2032 is thinner and lower capacity
Can CR2450 replace CR2032?	Usually no	CR2450 is thicker and may not fit
Is DL2032 the same class as CR2032?	Usually yes	DL2032 is commonly used as a brand naming variant for CR2032
Is A23 the same as 23A?	Usually yes	They are common names for a 12V miniature alkaline class

Common application notes

Application	Battery families often seen	What to check first
Watches	SR44, 357, CR1620, CR1220	Stable voltage, thickness, leakage risk
Toys and small lights	LR44, AG13, A76	Whether the device accepts alkaline discharge behavior
Calculators	LR44, AG13, CR2032	Battery tray marking and number of cells
Key fobs	CR2032, CR2450, A23	Exact code and holder height
Meters and calipers	SR44, 357, LR44	Silver oxide may be preferred for stable readings
Garage remotes and RF transmitters	A23, 23A, MN21	Confirm the 12V requirement

Buying and sourcing checklist

For a one-off replacement, the old battery code may be enough. For repair work, production support or replacement kits, collect more information:

Original battery code printed on the cell.
Photo of the battery holder.
Device model number.
Required quantity.
Preferred brand or approved vendor list.
Application type, such as consumer, industrial, medical or measurement.
Packaging needs: bulk pack, retail card, tray or labeled kit.

This is especially important when the old code is a brand-specific name such as DL2032, or when the manual lists several acceptable codes.

Need help confirming a battery replacement?

Send the original battery code, device model, quantity and any brand requirements. We can help check voltage, size, chemistry, packaging and replacement options before you place an order.

Send a battery replacement request

FAQ

What is a button cell battery equivalent chart?

It is a cross-reference table that maps one battery code to related codes with similar size, voltage and chemistry. A useful chart also explains when two codes are not perfect substitutes.