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Home › Can I swap? › AA vs FR6
Can I swap?

AA vs FR6: can you swap them?

1The short answer2Both ways3Differences4Buy it5Learn more
  1. 1

    The short answer

    UsuallyUsually, but check your deviceSame size and power, made a little differently. Fine for most everyday things.
    AA
    AAThe same size as an AA
    FR6
    FR6The same size as an AA
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  2. 2

    Both ways round

    Can I put FR6 where AA goes?Usually
    Can I put AA where FR6 goes?Usually
  3. 3

    What’s different

    AAFR6
    SizeThe same size as an AAThe same size as an AA Same
    LengthThe same size as an AAThe same size as an AA Same
    Power1.5 volts1.5 volts Same
    KindEveryday AA batteryCamera & alarm battery

    Lasts longer: FR6 (about 11% longer)

  4. 4

    Where to buy AA

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    Amazon searchEnergizer listings, any pack sizeSearch Amazon for Energizer E91
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    Amazon searchMulti-packs from any brandSearch Amazon for AA multi-packs
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    Amazon searchDuracell MN1500 listings, the same batterySearch Amazon for Duracell MN1500
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  5. 5

    Learn more

    About AAAbout FR6Check another pair
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Questions people ask

Can I use FR6 instead of AA?

Usually. Same size and power, made a little differently. Fine for most everyday things.

Can I use AA instead of FR6?

Usually. Same size and power, made a little differently. Fine for most everyday things.

Which one lasts longer?

FR6 (about 11% longer).

All the numbers

AAFR6
Diameter14.5 mm14.5 mm
Height50.5 mm50.5 mm
Nominal voltage1.5V1.5V
Typical capacity2700 mAh3000 mAh
ChemistryAlkalineLithium iron disulfide
Shelf life10 yrs10 yrs
Operating temp-18 to 55 °C-30 to 60 °C
Can I use FR6 instead of AA?Usually
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1The short answer2Both ways3Differences4Buy it5Learn more