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Home › Batteries › 6632
Coin battery

6632 is the same as CR1632

1What it is2Safety3Other names4Facts5Buy it6Things7Swaps
  1. 1

    What it is

    CR1632+ 3V

    6632 is just another name for CR1632. Same battery, different label, so you can buy either one.

    Get CR1632 on AmazonAs an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.

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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.

    CR1632DL1632ECR1632
  4. 4

    Quick facts

    Size
    A little smaller than a dime
    Thickness
    As thick as 4 credit cards stacked
    Power
    3 volts
    Keeps in a drawer for
    About 10 years
    Rechargeable?
    No, use once
    Found in things like
    Toyota & Lexus key fobsAqara door sensorsTile Mate
  5. 5

    Where to buy it

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

    Our pickThe exact match, 4-packEnergizer 6632 (CR1632) 3.0V Battery (4-Pack)
    Check Price on Amazon →
    Best value10-pack, handy to keep in a drawer6632 (CR1632) 3.0V Battery Value Pack (10-Pack)
    Check Price on Amazon →
    Other brandDuracell DL1632, the same batteryDuracell DL1632 / CR1632 3.0V Battery
    Check Price on Amazon →

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

  6. 6

    Things that use CR1632

    Tile Mate (2022 and later)Takes CR1632›Aqara Door & Window SensorTakes CR1632›
  7. 7

    Can I use something else?

    Can I use CR1620 instead of CR1632?In a pinch
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See it at real size

CR1632 next to a US quarter and an AA battery. “Real size” matches your hand once your screen is set up in Measure it.

CR1632Thickness 3.2US quarterAA

What do the letters mean?

Battery names are a code. Here’s how to read 6632:

6632Varta Proprietary for this cell
CR1632Physical cell: 16.0 × 3.2 mm, 3.0V lithium

The same battery from each brand

BrandTheir name for it
Official nameCR1632
EnergizerECR1632
DuracellDL1632
Murata (formerly Sony)CR1632
Renata (Swiss)CR1632
PanasonicCR-1632
Varta6632
MaxellCR1632

Exact measurements

Width
16.0 mm (0.630 in)
Thickness
3.2 mm
Voltage
3.0V (empty at 2.0V)
Energy stored
137 mAh
Weight
1.8 g
Made with
Lithium manganese dioxide
Works between
-30 … 60 °C
Official code
CR1632

Questions people ask

Is 6632 the same as CR1632?

Yes. They’re the same battery with different names. You might also see CR1632, DL1632, ECR1632.

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.

CR1632+ 3V
CR1632Coin battery
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1What it is2Safety3Other names4Facts5Buy it6Things7Swaps