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Home › Can I swap? › 357 vs 303
Can I swap?

357 vs 303: can you swap them?

1The short answer2Both ways3Differences4Buy it5Learn more
  1. 1

    The short answer

    YesYes, they’re the same battery357 and 303 are two names for the exact same battery. Use either one.
    SR44+ 1.55V
    357As thick as 7 credit cards stacked
    SR44+ 1.55V
    303As thick as 7 credit cards stacked
    Get 357 on AmazonAs an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.

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  2. 2

    Both ways round

    Can I put 303 where 357 goes?Yes
    Can I put 357 where 303 goes?Yes
  3. 3

    What’s different

    357303
    SizeAbout as wide as a shirt buttonAbout as wide as a shirt button Same
    ThicknessAs thick as 7 credit cards stackedAs thick as 7 credit cards stacked Same
    Power1.55 volts1.55 volts Same
    KindWatch batteryWatch battery

    Lasts longer: Same

  4. 4

    Where to buy 357

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

    Our pickThe exact match, 4-packEnergizer 357 (SR44) 1.55V Battery (4-Pack)
    Check Price on Amazon →
    Best value10-pack, handy to keep in a drawer357 (SR44) 1.55V Battery Value Pack (10-Pack)
    Check Price on Amazon →
    Other brandDuracell D357, the same batteryDuracell D357 / SR44 1.55V Battery
    Check Price on Amazon →

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

    Get 303 on AmazonAs an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.
  5. 5

    Learn more

    About 357About 303Check another pair
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Questions people ask

Can I use 303 instead of 357?

Yes. 357 and 303 are two names for the exact same battery. Use either one.

Can I use 357 instead of 303?

Yes. 357 and 303 are two names for the exact same battery. Use either one.

Which one lasts longer?

They last about the same.

All the numbers

357303
Diameter11.6 mm11.6 mm
Height5.4 mm5.4 mm
Nominal voltage1.55V1.55V
Typical capacity160 mAh160 mAh
ChemistrySilver oxideSilver oxide
Shelf life5 yrs5 yrs
Operating temp-10 to 60 °C-10 to 60 °C
Can I use 303 instead of 357?Yes
Get 357 on AmazonAs an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.

Something wrong or missing? Tell us

1The short answer2Both ways3Differences4Buy it5Learn more