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Home › Can I swap? › Size 10 vs LR527
Can I swap?

Size 10 vs LR527: can you swap them?

1The short answer2Both ways3Differences4Buy it5Learn more
  1. 1

    The short answer

    NoNo, hearing aid batteries are differentThey’re the same size, but hearing aid batteries breathe air through tiny holes to work. Don’t mix them with ordinary button batteries.
    10STICKER
    Size 10As thick as 5 credit cards stacked
    LR527+ 1.5V
    LR527As thick as 4 credit cards stacked
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  2. 2

    Both ways round

    Can I put LR527 where Size 10 goes?No
    Can I put Size 10 where LR527 goes?No
  3. 3

    What’s different

    Size 10LR527
    SizeAbout as wide as a pencil eraserAbout as wide as a pencil eraser Same
    ThicknessAs thick as 5 credit cards stackedAs thick as 4 credit cards stacked
    Power1.45 volts1.5 volts
    KindHearing aid batteryButton battery

    Lasts longer: Size 10 (about 692% longer)

  4. 4

    Where to buy Size 10

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

    Amazon searchEnergizer listings, any pack sizeSearch Amazon for Energizer Size 10
    See results on Amazon →
    Amazon searchMulti-packs from any brandSearch Amazon for Size 10 multi-packs
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    Amazon searchDuracell listings, the same batterySearch Amazon for Duracell Size 10
    See results on Amazon →

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

    Search Amazon for LR527As an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.
  5. 5

    Learn more

    About Size 10About LR527Check another pair
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Questions people ask

Can I use LR527 instead of Size 10?

No. They’re the same size, but hearing aid batteries breathe air through tiny holes to work. Don’t mix them with ordinary button batteries.

Can I use Size 10 instead of LR527?

No. They’re the same size, but hearing aid batteries breathe air through tiny holes to work. Don’t mix them with ordinary button batteries.

Which one lasts longer?

Size 10 (about 692% longer).

All the numbers

Size 10LR527
Diameter5.8 mm5.8 mm
Height3.6 mm2.7 mm
Nominal voltage1.45V1.5V
Typical capacity95 mAh12 mAh
ChemistryZinc-airAlkaline
Shelf life3 yrs5 yrs
Operating temp0 to 50 °C-10 to 60 °C
Can I use LR527 instead of Size 10?No
Search Amazon for Size 10As an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.

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1The short answer2Both ways3Differences4Buy it5Learn more