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Home › Can I swap? › SR920SW vs LR936
Can I swap?

SR920SW vs LR936: can you swap them?

1The short answer2Both ways3Differences4Buy it5Learn more
  1. 1

    The short answer

    NoSR920SW can stand in for LR936, but not the other way roundThey’re the same width and power, but SR920SW is thinner. It may wobble a little and runs out about 8% sooner. LR936 is too thick to fit where SR920SW goes.
    SR920SW+ 1.55V
    SR920SWAs thick as 3 credit cards stacked
    LR936+ 1.5V
    LR936As thick as 5 credit cards stacked
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  2. 2

    Both ways round

    Can I put LR936 where SR920SW goes?No
    Can I put SR920SW where LR936 goes?In a pinch
  3. 3

    What’s different

    SR920SWLR936
    SizeAbout as wide as a peaAbout as wide as a pea Same
    ThicknessAs thick as 3 credit cards stackedAs thick as 5 credit cards stacked
    Power1.55 volts1.5 volts
    KindWatch batteryButton battery

    Lasts longer: LR936 (about 9% longer)

  4. 4

    Where to buy SR920SW

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

    Amazon searchEnergizer listings, any pack sizeSearch Amazon for Energizer 371
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    Amazon searchMulti-packs from any brandSearch Amazon for SR920SW multi-packs
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    Amazon searchDuracell D371 listings, the same batterySearch Amazon for Duracell D371
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  5. 5

    Learn more

    About SR920SWAbout LR936Check another pair
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Questions people ask

Can I use LR936 instead of SR920SW?

No. They’re the same width and power, but SR920SW is thinner. It may wobble a little and runs out about 8% sooner. LR936 is too thick to fit where SR920SW goes.

Can I use SR920SW instead of LR936?

In a pinch. They’re the same width and power, but SR920SW is thinner. It may wobble a little and runs out about 8% sooner. LR936 is too thick to fit where SR920SW goes.

Which one lasts longer?

LR936 (about 9% longer).

All the numbers

SR920SWLR936
Diameter9.5 mm9.5 mm
Height2.0 mm3.6 mm
Nominal voltage1.55V1.5V
Typical capacity44 mAh48 mAh
ChemistrySilver oxideAlkaline
Shelf life5 yrs5 yrs
Operating temp-10 to 60 °C-10 to 60 °C
Can I use LR936 instead of SR920SW?No
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1The short answer2Both ways3Differences4Buy it5Learn more