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Home › Things › Smart-home sensors › Aqara Motion Sensor
Smart-home sensors · 2018–2026

Aqara Motion Sensor battery

1The battery you need2Change it3Buy it4Reminder5Other names6Other things
  1. 1

    The battery you need

    →CR2450+ 3V

    It takes one CR2450: a coin battery, about the size of a quarter.

    Get CR2450 on AmazonAs an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.

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  2. 2

    How to change it

    You’ll need: Fingernail or a coin

    1. Open the battery door

      Slide or unscrew the little battery door.

    2. Swap the battery

      Take out the old one and put the new one in matching the “+” mark.

    3. Close and test

      Close the door and switch it on.

  3. 3

    Where to buy it

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

    Our pickThe exact match, 4-packEnergizer CR2450 3.0V Battery (4-Pack)
    Check Price on Amazon →
    Best value10-pack, handy to keep in a drawerCR2450 3.0V Battery Value Pack (10-Pack)
    Check Price on Amazon →
    Other brandDuracell DL2450, the same batteryDuracell DL2450 / CR2450 3.0V Battery
    Check Price on Amazon →

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

  4. 4

    Remind me to change it

    A new battery usually lasts about 2 years in this device.

    That’s around November 2028.

    Add to my calendar
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    No email needed.

    We only use your email for this reminder. Privacy policy

  5. 5

    Also sold as

    Any of these names is the same battery.

    CR2450DL2450ECR24505029LC6450
  6. 6

    Other things that use CR2450

    Aqara Motion SensorTakes CR2450›2019–2024 BMW 3 Series KeyTakes CR2450›
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Questions people ask

What battery does the Aqara Motion Sensor take?

It takes CR2450, a coin battery.

Can I use DL2450 instead?

Yes. DL2450, ECR2450, 5029LC are the same battery with other names.

How long will the new battery last?

Usually about 2 years, depending on how much you use it. Most devices warn you when it gets low.

About the CR2450

Size
About the size of a quarter
Thickness
As thick as 7 credit cards stacked
Power
3 volts
Keeps in a drawer for
About 10 years
Rechargeable?
No, use once
Found in things like
BMW & Ford key fobsBike computersSmart-home sensors
Everything about CR2450
CR2450+ 3V
Aqara Motion Sensor takesCR2450
Get CR2450 on AmazonAs an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.

Something wrong or missing? Tell us

1The battery you need2Change it3Buy it4Reminder5Other names6Other things