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Home › Batteries › CR1620
Coin battery

CR1620 battery

1What it is2Safety3Other names4Facts5Buy it6Swaps
  1. 1

    What it is

    CR1620+ 3V

    CR1620 is a coin battery, a little smaller than a dime. It gives 3 volts.

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  2. 2

    Safety first

    Keep away from children and pets

    A swallowed coin or button battery can cause serious burns inside the body within 2 hours. If you think one was swallowed, get emergency help right away.

    Swallowed one? What to do now →
  3. 3

    Names you might see in the store

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

    DL1620ECR16205009LC6620
  4. 4

    Quick facts

    Size
    A little smaller than a dime
    Thickness
    As thick as 3 credit cards stacked
    Power
    3 volts
    Keeps in a drawer for
    About 10 years
    Rechargeable?
    No, use once
    Found in things like
    Key fobsLED tea lights
  5. 5

    Where to buy it

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

    Our pickThe exact match, 4-packEnergizer CR1620 3.0V Battery (4-Pack)
    Check Price on Amazon →
    Best value10-pack, handy to keep in a drawerCR1620 3.0V Battery Value Pack (10-Pack)
    Check Price on Amazon →
    Other brandDuracell DL1620, the same batteryDuracell DL1620 / CR1620 3.0V Battery
    Check Price on Amazon →

    Buttons open amazon.com 🇺🇸, picked from your country.

  6. 6

    Can I use something else?

    Can I use CR1620 instead of CR1632?In a pinch
Show more details (optional)

See it at real size

CR1620 next to a US quarter and an AA battery. “Real size” matches your hand once your screen is set up in Measure it.

CR1620Thickness 2.0US quarterAA

What do the letters mean?

Battery names are a code. Here’s how to read CR1620:

CLithium manganese dioxide chemistry (3.0V)
RRound coin / button form factor
16≈ 16 mm diameter (exact 16.0 mm, 0.630 in)
202.0 mm thickness (exact 2.0 mm, 0.079 in)

The same battery from each brand

BrandTheir name for it
Official nameCR1620
EnergizerECR1620
DuracellDL1620
Renata (Swiss)CR1620
PanasonicCR-1620
Varta6620

Exact measurements

Width
16.0 mm (0.630 in)
Thickness
2.0 mm
Voltage
3.0V (empty at 2.0V)
Energy stored
78 mAh
Weight
1.2 g
Made with
Lithium manganese dioxide
Works between
-30 … 60 °C
Official code
CR1620 · ANSI 5009LC

Questions people ask

Is CR1620 the same as DL1620?

Yes. They’re the same battery with different names. You might also see DL1620, ECR1620, 5009LC, 6620.

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.

Which way up does it go?

Usually with the side marked “+” facing you or facing up. Look at how the old one sits before you take it out.

CR1620+ 3V
CR1620Coin battery
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1What it is2Safety3Other names4Facts5Buy it6Swaps