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Home › Can I swap? › LR44 vs LR43
Can I swap?

LR44 vs LR43: can you swap them?

1The short answer2Both ways3Differences4Buy it5Learn more
  1. 1

    The short answer

    In a pinchLR43 can stand in for LR44, but not the other way roundThey’re the same width and power, but LR43 is thinner. It may wobble a little and runs out about 33% sooner. LR44 is too thick to fit where LR43 goes.
    LR44+ 1.5V
    LR44As thick as 7 credit cards stacked
    LR43+ 1.5V
    LR43As thick as 6 credit cards stacked
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  2. 2

    Both ways round

    Can I put LR43 where LR44 goes?In a pinch
    Can I put LR44 where LR43 goes?No
  3. 3

    What’s different

    LR44LR43
    SizeAbout as wide as a shirt buttonAbout as wide as a shirt button Same
    ThicknessAs thick as 7 credit cards stackedAs thick as 6 credit cards stacked
    Power1.5 volts1.5 volts Same
    KindButton batteryButton battery

    Lasts longer: LR44 (about 50% longer)

  4. 4

    Where to buy LR44

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

    Our pickThe exact match, 4-packEnergizer LR44 1.5V Battery (4-Pack)
    Check Price on Amazon →
    Best value10-pack, handy to keep in a drawerLR44 1.5V Battery Value Pack (10-Pack)
    Check Price on Amazon →
    Other brandDuracell 76A, the same batteryDuracell 76A / LR44 1.5V Battery
    Check Price on Amazon →

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

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  5. 5

    Learn more

    About LR44About LR43Check another pair
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Questions people ask

Can I use LR43 instead of LR44?

In a pinch. They’re the same width and power, but LR43 is thinner. It may wobble a little and runs out about 33% sooner. LR44 is too thick to fit where LR43 goes.

Can I use LR44 instead of LR43?

No. They’re the same width and power, but LR43 is thinner. It may wobble a little and runs out about 33% sooner. LR44 is too thick to fit where LR43 goes.

Which one lasts longer?

LR44 (about 50% longer).

All the numbers

LR44LR43
Diameter11.6 mm11.6 mm
Height5.4 mm4.2 mm
Nominal voltage1.5V1.5V
Typical capacity150 mAh100 mAh
ChemistryAlkalineAlkaline
Shelf life5 yrs5 yrs
Operating temp-10 to 60 °C-10 to 60 °C
Can I use LR43 instead of LR44?In a pinch
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1The short answer2Both ways3Differences4Buy it5Learn more