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Home › Can I swap? › CR2 vs CR-2W
Can I swap?

CR2 vs CR-2W: can you swap them?

1The short answer2Both ways3Differences4Buy it5Learn more
  1. 1

    The short answer

    YesYes, they’re the same batteryCR2 and CR-2W are two names for the exact same battery. Use either one.
    CR2
    CR2Short and chunky, about 2.7 cm long
    CR2
    CR-2WShort and chunky, about 2.7 cm long
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  2. 2

    Both ways round

    Can I put CR-2W where CR2 goes?Yes
    Can I put CR2 where CR-2W goes?Yes
  3. 3

    What’s different

    CR2CR-2W
    SizeShort and chunky, about 2.7 cm longShort and chunky, about 2.7 cm long Same
    LengthShort and chunky, about 2.7 cm longShort and chunky, about 2.7 cm long Same
    Power3 volts3 volts Same
    KindCamera & alarm batteryCamera & alarm battery

    Lasts longer: Same

  4. 4

    Where to buy CR2

    As an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.

    Our pickThe exact match, 4-packEnergizer CR2 3.0V Battery (4-Pack)
    Check Price on Amazon →
    Best value10-pack, handy to keep in a drawerCR2 3.0V Battery Value Pack (10-Pack)
    Check Price on Amazon →
    Other brandDuracell DLCR2, the same batteryDuracell DLCR2 / CR2 3.0V Battery
    Check Price on Amazon →

    Buttons open amazon.com 🇺🇸, picked from your country.

    Get CR-2W on AmazonAs an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.
  5. 5

    Learn more

    About CR2About CR-2WCheck another pair
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Questions people ask

Can I use CR-2W instead of CR2?

Yes. CR2 and CR-2W are two names for the exact same battery. Use either one.

Can I use CR2 instead of CR-2W?

Yes. CR2 and CR-2W are two names for the exact same battery. Use either one.

Which one lasts longer?

They last about the same.

All the numbers

CR2CR-2W
Diameter15.6 mm15.6 mm
Height27.0 mm27.0 mm
Nominal voltage3.0V3.0V
Typical capacity850 mAh850 mAh
ChemistryLithium manganese dioxideLithium manganese dioxide
Shelf life10 yrs10 yrs
Operating temp-40 to 60 °C-40 to 60 °C
Can I use CR-2W instead of CR2?Yes
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1The short answer2Both ways3Differences4Buy it5Learn more