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Home › Batteries › 15LF
Camera & alarm battery

15LF is the same as FR6

1What it is2Other names3Facts4Buy it
  1. 1

    What it is

    FR6

    15LF is just another name for FR6. 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.

    FR6L91LF1500
  3. 3

    Quick facts

    Size
    The same size as an AA
    Power
    1.5 volts
    Keeps in a drawer for
    About 10 years
    Rechargeable?
    No, use once
    Found in things like
    FlashlightsToys & calculatorsPortable 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 L91
    See results on Amazon →
    Amazon searchMulti-packs from any brandSearch Amazon for 15LF (FR6) multi-packs
    See results on Amazon →
    Amazon searchDuracell LF1500 listings, the same batterySearch Amazon for Duracell LF1500
    See results on Amazon →

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See it at real size

FR6 next to a US quarter and an AA battery. “Real size” matches your hand once your screen is set up in Measure it.

FR6US quarterAA

What do the letters mean?

Battery names are a code. Here’s how to read 15LF:

15LFANSI for this cell
FR6Physical cell: 14.5 × 50.5 mm, 1.5V li-fes2

The same battery from each brand

BrandTheir name for it
Official nameFR6
EnergizerL91
DuracellLF1500

Exact measurements

Width
14.5 mm (0.571 in)
Length
50.5 mm
Voltage
1.5V (empty at 0.9V)
Energy stored
3000 mAh
Weight
14.5 g
Made with
Lithium iron disulfide
Works between
-30 … 60 °C
Official code
FR6 · ANSI 15LF

Questions people ask

Is 15LF the same as FR6?

Yes. They’re the same battery with different names. You might also see FR6, L91, LF1500.

How long will a spare keep in a drawer?

About 10 years if it stays cool and dry.

Can I recharge it?

No. Never try to recharge it.

FR6
FR6Camera & alarm battery
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1What it is2Other names3Facts4Buy it