It takes one CR2032: a coin battery, about the size of a nickel.
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You’ll need: Mechanical key blade or a plastic pry tool
Slide the release on the back and pull out the metal key blade.
Insert the blade into the slot at the base and twist gently until the two halves separate.
Note the old cell’s orientation, fit the CR2032 with the + side facing you, and press the halves together until both clips click.
Pry from the slot only. Prying at the seam leaves marks on the shell.
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A new battery usually lasts about 2 years in this device.
That’s around October 2028.
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It takes CR2032, a coin battery.
Yes. DL2032, ECR2032, 5004LC are the same battery with other names.
Usually about 2 years, depending on how much you use it. Most devices warn you when it gets low.