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Watch battery · lithium coin

CR2025 battery

CR2025 = SB-T14. 201 × 2.5 mm1 lithium coin, 3 V1. Equivalents: ECR2025, DL2025, 280-205 (5 codes in 6 code systems, full table); 137 calibres, modules and models in our base take it.

Sources checked · How we source numbers
CR2025: drawing to scaleCR2025: diameter 20 mm, height 2.5 mm.Ø 20−+2.5CR2025
CR2025: face and edge view to scale, from the datasheet sizesDrawing from data, not a photo · mm
Diameter
20 mm1
Height
2.5 mm1
Nominal voltage
3 V1
IEC designation
CR20251

CR2025 equivalents

The same cell under 5 names. Any of them fits where CR2025 does.

Code systemCR2025
IECCR20251
EnergizerCR20251
DuracellDL20252secondary source
SeikoSB-T142secondary source
Citizen280-2052secondary source
Rayovac (old)ECR20252secondary source

Size and chemistry

Diameter
20 mm1
Height
2.5 mm1
Nominal voltage
3 V1
Chemistry
Lithium / Manganese Dioxide (Li/MnO2)1
IEC designation
CR20251
1.2CR20121.6CR20162.5CR20253.2CR2032
Every 20 mm lithium coin size with a page, edge view to scale. Only the height tells them apart.
Show CR2025 at true size (1:1)
1:1 · not calibrated: sizes are approximate
CR2025: drawing to scaleCR2025: diameter 20 mm, height 2.5 mm.Ø 20−+2.5CR2025
01020304050

What uses CR2025

137 calibres, modules and models in our base name this size.

Seiko calibres84[3]

Seiko's battery chart gives 2–10 years of battery life for these calibres. Seiko, Pulsar, Lorus and Alba calibres share the chart.

  • A860
  • A861
  • G139
  • G510
  • L600
  • M422
  • M705
  • M725
All 84 calibres
  • M726
  • M795
  • M796
  • S240
  • S640
  • S651
  • S670
  • S800
  • S820
  • S821
  • S930
  • W041
  • W061
  • W062
  • W071
  • W072
  • W073
  • W100
  • W110
  • W111
  • W120
  • W130
  • W136
  • W150
  • W151
  • W160
  • W339A
  • W339B
  • W348
  • W349
  • W357
  • W358
  • W359
  • W440
  • W441
  • W442
  • W520
  • W522
  • W521
  • W525
  • W524
  • W551
  • W552
  • W553
  • W620
  • W650
  • W621
  • W626
  • W670
  • W671
  • W680
  • W700
  • W701
  • W730
  • W750
  • W751
  • W753
  • W760
  • Y737
  • W754
  • W780
  • W800
  • W801
  • W802
  • W820
  • W803
  • W804
  • W810
  • W850
  • W851
  • W852
  • W853
  • W854
  • W855
  • Y717
  • Y718

Cell types in this size

CR2025

Primary cell · Lithium / Manganese Dioxide (Li/MnO2)1

6 codes in our sources name this cell type.

Capacity by manufacturer

Energizer CR2025CR2025

170 mAh1capacity to 2.0 V cut-offDatasheet ↗

Can I use another cell instead of CR2025?

Verdicts follow our swap rules from the datasheet size, voltage and cell type.

  • Use instead of CR2025

    CR2016

    No

    No: CR2016 is 0.9 mm thinner than CR2025.

    Same 20 mm diameter, but CR2016 is 1.6 mm against 2.5 mm: the contact spring may not reach it.

    CR2016: 20 mm4 × 1.6 mm4, 3 V5

    Draw both cells in the swap checker
  • Use instead of CR2025

    CR2032

    No

    No: CR2032 is 0.7 mm taller than CR2025.

    Same 20 mm diameter, but CR2032 stands 3.2 mm against 2.5 mm: the case back presses on it or does not close.

    CR2032: 20 mm6 × 3.2 mm6, 3 V6

    Draw both cells in the swap checker

Warnings from the makers

Keep away from children

“KEEP OUT OF REACH OF CHILDREN. Swallowing may lead to”[1]
“serious injury or death in as little as 2 hours due to chemical burns and”[1]

Questions

What is the CR2025 battery equivalent?

ECR2025, DL2025, 280-205, SB-T14 name the same 20 × 2.5 mm lithium coin cell as CR2025. Any maker's cell under one of these codes fits.

Is CR2016 the same as CR2025?

No. CR2016 is 0.9 mm thinner than CR2025. Same 20 mm diameter, but CR2016 is 1.6 mm against 2.5 mm: the contact spring may not reach it.

What watches use the CR2025 battery?

In our base: 84 Seiko calibres (A860, A861, G139, G510…); 50 Casio models. The full lists are on this page, with the brand tables they come from.

How long does a CR2025 battery last in a watch?

Seiko's battery chart gives 2 to 10 years for its 83 calibres on this cell, 2 years most often. Life depends on the calibre's current draw, not on the cell alone.

Seiko battery chart[3]

Sources

Documents checked · Report a wrong number

  1. 1Energizer Holdings, Inc. — Product datasheet ENERGIZER CR2025 · pdf · read
  2. 2WatchBattery (UK) Ltd — Watch Battery Cross Reference Table (rows re-extracted from HTML this session) · html · read
  3. 3Seiko Watch Corporation (service information) — Value Checking List / Battery No. Cross-reference Chart · pdf · read
  4. 4Panasonic Energy Co., Ltd. — CR2016 datasheet (EN) · pdf · read
  5. 5Energizer Holdings, Inc. — Product datasheet ENERGIZER CR2016 · pdf · read
  6. 6Energizer Holdings, Inc. — Product datasheet ENERGIZER CR2032 · pdf · read