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Home › Can I swap? › SR726SW vs LR726
Can I swap?

SR726SW vs LR726: can you swap them?

1The short answer2Both ways3Differences4Buy it5Learn more
  1. 1

    The short answer

    YesYes, and SR726SW is the better pickSame size, and both fit. SR726SW lasts longer and gives steadier power, which matters for cameras, measuring tools and watches. LR726 is the cheaper everyday option.
    SR726SW+ 1.55V
    SR726SWAs thick as 3 credit cards stacked
    LR726+ 1.5V
    LR726As thick as 3 credit cards stacked
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  2. 2

    Both ways round

    Can I put LR726 where SR726SW goes?Yes
    Can I put SR726SW where LR726 goes?Yes
  3. 3

    What’s different

    SR726SWLR726
    SizeAbout as wide as a peaAbout as wide as a pea Same
    ThicknessAs thick as 3 credit cards stackedAs thick as 3 credit cards stacked Same
    Power1.55 volts1.5 volts
    KindWatch batteryButton battery

    Lasts longer: SR726SW (about 23% longer)

  4. 4

    Where to buy SR726SW

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

    Amazon searchEnergizer listings, any pack sizeSearch Amazon for Energizer 397
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    Amazon searchMulti-packs from any brandSearch Amazon for SR726SW multi-packs
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    Amazon searchDuracell D397 listings, the same batterySearch Amazon for Duracell D397
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  5. 5

    Learn more

    About SR726SWAbout LR726Check another pair
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Questions people ask

Can I use LR726 instead of SR726SW?

Yes. Same size, and both fit. SR726SW lasts longer and gives steadier power, which matters for cameras, measuring tools and watches. LR726 is the cheaper everyday option.

Can I use SR726SW instead of LR726?

Yes. Same size, and both fit. SR726SW lasts longer and gives steadier power, which matters for cameras, measuring tools and watches. LR726 is the cheaper everyday option.

Which one lasts longer?

SR726SW (about 23% longer).

All the numbers

SR726SWLR726
Diameter7.9 mm7.9 mm
Height2.6 mm2.6 mm
Nominal voltage1.55V1.5V
Typical capacity32 mAh26 mAh
ChemistrySilver oxideAlkaline
Shelf life5 yrs5 yrs
Operating temp-10 to 60 °C-10 to 60 °C
Can I use LR726 instead of SR726SW?Yes
Search Amazon for SR726SWAs an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.

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1The short answer2Both ways3Differences4Buy it5Learn more