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Home › Can I swap? › SR1116SW vs MR44
Can I swap?

SR1116SW vs MR44: can you swap them?

1The short answer2Both ways3Differences4Buy it5Learn more
  1. 1

    The short answer

    NoNo, don’t swap theseThey give different amounts of power (1.55 volts vs 1.4 volts). The wrong one can damage your device or simply won’t work.
    SR1116SW+ 1.55V
    SR1116SWAs thick as 2 credit cards stacked
    MR44+ 1.4V
    MR44As thick as 7 credit cards stacked
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  2. 2

    Both ways round

    Can I put MR44 where SR1116SW goes?No
    Can I put SR1116SW where MR44 goes?No
  3. 3

    What’s different

    SR1116SWMR44
    SizeAbout as wide as a shirt buttonAbout as wide as a shirt button Same
    ThicknessAs thick as 2 credit cards stackedAs thick as 7 credit cards stacked
    Power1.55 volts1.4 volts
    KindWatch batteryButton battery

    Lasts longer: MR44 (about 621% longer)

  4. 4

    Where to buy SR1116SW

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

    Amazon searchEnergizer listings, any pack sizeSearch Amazon for Energizer 366
    See results on Amazon →
    Amazon searchMulti-packs from any brandSearch Amazon for SR1116SW multi-packs
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    Amazon searchDuracell D366 listings, the same batterySearch Amazon for Duracell D366
    See results on Amazon →

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    Search Amazon for MR44As an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.
  5. 5

    Learn more

    About SR1116SWAbout MR44Check another pair
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Questions people ask

Can I use MR44 instead of SR1116SW?

No. They give different amounts of power (1.55 volts vs 1.4 volts). The wrong one can damage your device or simply won’t work.

Can I use SR1116SW instead of MR44?

No. They give different amounts of power (1.55 volts vs 1.4 volts). The wrong one can damage your device or simply won’t work.

Which one lasts longer?

MR44 (about 621% longer).

All the numbers

SR1116SWMR44
Diameter11.6 mm11.6 mm
Height1.7 mm5.4 mm
Nominal voltage1.55V1.4V
Typical capacity34 mAh245 mAh
ChemistrySilver oxideMercury oxide
Shelf life5 yrs5 yrs
Operating temp-10 to 60 °C-10 to 60 °C
Can I use MR44 instead of SR1116SW?No
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1The short answer2Both ways3Differences4Buy it5Learn more