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Netatmo Smart Thermostat battery: 3 × AAA

The Netatmo Smart Thermostat takes three AAA 1.5V batteries.

AAA

AAA× 31.5V batteries

Also sold as LR03, E92, MN2400 · AAA details

Source: Netatmo Smart Thermostat product page

Varta Longlife Power AAA 8 pack at Amazon for AAA 1.5V alkaline battery (affiliate link, opens in new tab)Energizer Max AAA at Amazon (affiliate link)

Before you swap it

  • Swap the whole set together. A half-flat battery left in with fresh ones drags the lot down.

Quick answers

Which battery goes in the Netatmo Smart Thermostat?

Three AAA 1.5V batteries.

Is LR03 the same as AAA?

Yes. LR03, E92 and MN2400 are all the same cell as AAA, sold under another name.