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Home › Batteries › 25500
Rechargeable flashlight battery

25500 battery

1What it is2Safety3Other names4Facts5Buy it
  1. 1

    What it is

    25500

    25500 is a rechargeable flashlight battery, as long as an AA, but much fatter. It gives 3.7 volts.

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  2. 2

    Safety first

    This one is rechargeable

    It gives more power than a normal battery. Only use it in things made for it.

  3. 3

    Names you might see in the store

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

    INR25500ICR25500
  4. 4

    Quick facts

    Size
    As long as an AA, but much fatter
    Power
    3.7 volts
    Keeps in a drawer for
    About 3 years
    Rechargeable?
    Yes
    Found in things like
    High-capacity flashlightsIndustrial lighting
  5. 5

    Where to buy it

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

    Amazon searchEnergizer listings, any pack sizeSearch Amazon for Energizer 25500
    See results on Amazon →
    Amazon searchMulti-packs from any brandSearch Amazon for 25500 multi-packs
    See results on Amazon →
    Amazon searchDuracell listings, the same batterySearch Amazon for Duracell 25500
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See it at real size

25500 next to a US quarter and an AA battery. “Real size” matches your hand once your screen is set up in Measure it.

25500US quarterAA

What do the letters mean?

Battery names are a code. Here’s how to read 25500:

2525 mm diameter
50050.0 mm length
Li-ion3.7V rechargeable

The same battery from each brand

BrandTheir name for it
Official name25500

Exact measurements

Width
25.0 mm (0.984 in)
Length
50.0 mm
Voltage
3.7V (empty at 2.5V)
Energy stored
4000 mAh
Weight
—
Made with
Lithium-ion rechargeable
Works between
-20 … 60 °C
Official code
25500

Questions people ask

Is 25500 the same as INR25500?

Yes. They’re the same battery with different names. You might also see INR25500, ICR25500.

How long will a spare keep in a drawer?

About 3 years if it stays cool and dry.

Can I recharge it?

Yes, it’s rechargeable. Only charge it in a charger or device made for it.

25500
25500Rechargeable flashlight battery
Search Amazon for 25500As an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.

Something wrong or missing? Tell us

1What it is2Safety3Other names4Facts5Buy it