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Home › Batteries › LR25
Regular battery

LR25 is the same as F

1What it is2Other names3Facts4Buy it
  1. 1

    What it is

    F

    LR25 is just another name for F. Same battery, different label, so you can buy either one.

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  2. 2

    Names you might see in the store

    All of these are the same battery. Any of them will work.

    F
  3. 3

    Quick facts

    Size
    Much bigger than an AA
    Power
    1.5 volts
    Keeps in a drawer for
    About 5 years
    Rechargeable?
    No, use once
    Found in things like
    Large flashlightsPortable radiosVintage transistor radios
  4. 4

    Where to buy it

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

    Amazon searchEnergizer listings, any pack sizeSearch Amazon for Energizer F
    See results on Amazon →
    Amazon searchMulti-packs from any brandSearch Amazon for LR25 (F) multi-packs
    See results on Amazon →
    Amazon searchDuracell listings, the same batterySearch Amazon for Duracell F
    See results on Amazon →

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See it at real size

F next to a US quarter and an AA battery. “Real size” matches your hand once your screen is set up in Measure it.

FUS quarterAA

What do the letters mean?

Battery names are a code. Here’s how to read LR25:

LAlkaline chemistry (1.5V)
RRound cylindrical form factor
25Legacy IEC size number, not a dimension. Actual size 33.0 × 91.0 mm

The same battery from each brand

BrandTheir name for it
Official nameLR25
Shop nameF

Exact measurements

Width
33.0 mm (1.299 in)
Length
91.0 mm
Voltage
1.5V (empty at 0.9V)
Energy stored
26000 mAh
Weight
—
Made with
Alkaline
Works between
-10 … 60 °C
Official code
LR25

Questions people ask

Is LR25 the same as F?

Yes. They’re the same battery with different names. You might also see F.

How long will a spare keep in a drawer?

About 5 years if it stays cool and dry.

Can I recharge it?

No. Never try to recharge it.

F
FRegular battery
Search Amazon for LR25As an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.

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1What it is2Other names3Facts4Buy it