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IKEA TRÅDFRI wireless dimmer / on/off switch battery: CR2032

The IKEA TRÅDFRI wireless dimmer / on/off switch takes one CR2032 3V lithium coin cell.

CR20323V

CR2032× 13V lithium coin cell

Also sold as DL2032, ECR2032, KECR2032, 5004LC · CR2032 details

Source: IKEA TRÅDFRI wireless dimmer / on/off switch manual

Energizer CR2032 4 pack at Amazon for CR2032 3V lithium coin cell (affiliate link, opens in new tab)Varta CR2032 4 pack at Amazon (affiliate link)

Before you swap it

  • CR2016 and CR2025 are the same 20 mm width as a CR2032 but a different thickness, so read the code on the old cell before you order, because a cell that's too thin can lose contact every time it gets knocked.

Quick answers

What battery does the IKEA TRÅDFRI wireless dimmer / on/off switch take?

One CR2032 3V lithium coin cell.

Is DL2032 the same as CR2032?

Yes. DL2032, ECR2032, KECR2032 and 5004LC are all the same cell as CR2032, sold under another name.

Will a CR2025 fit instead of a CR2032?

No. It's the same 20 mm width but 2.5 mm thick, against 3.2 mm for a CR2032. Use a CR2032.