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Home › Batteries › ICR18500
Rechargeable flashlight battery

ICR18500 is the same as 18500

1What it is2Safety3Other names4Facts5Buy it
  1. 1

    What it is

    18500

    ICR18500 is just another name for 18500. Same battery, different label, so you can buy either one.

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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.

    18500INR18500
  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
    FlashlightsPower banksE-bike packsPortable radios
  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 18500
    See results on Amazon →
    Amazon searchMulti-packs from any brandSearch Amazon for ICR18500 (18500) multi-packs
    See results on Amazon →
    Amazon searchDuracell listings, the same batterySearch Amazon for Duracell 18500
    See results on Amazon →

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See it at real size

18500 next to a US quarter and an AA battery. “Real size” matches your hand once your screen is set up in Measure it.

18500US quarterAA

What do the letters mean?

Battery names are a code. Here’s how to read ICR18500:

ICR18500Li-ion cell naming for this cell
18500Physical cell: 18.0 × 50.0 mm, 3.7V li-ion rechargeable

The same battery from each brand

BrandTheir name for it
Official name18500

Exact measurements

Width
18.0 mm (0.709 in)
Length
50.0 mm
Voltage
3.7V (empty at 2.5V)
Energy stored
1400 mAh
Weight
33 g
Made with
Lithium-ion rechargeable
Works between
-20 … 60 °C
Official code
18500

Questions people ask

Is ICR18500 the same as 18500?

Yes. They’re the same battery with different names. You might also see 18500, INR18500.

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.

18500
18500Rechargeable flashlight battery
Search Amazon for ICR18500As an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.

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1What it is2Safety3Other names4Facts5Buy it