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LR44 battery

11.6 × 5.4 mm · 1.5 V
alkaline button cell · about 130 mAh (varies by brand)

Buy LR44 batteries

357/SR44 are the silver-oxide version of the same size: steadier voltage, longer life.

LR44 coin cell
A LR44 cell · Photo: Raimond Spekking, CC BY-SA 4.0, via Wikimedia Commons (resized)

LR44 size, drawn to scale

LR44+11.6 mmThickness (side view)LR44 · 5.4 mm
Drawn to scale by FobCells. The flat side marked + is the positive side.

LR44 equivalents

The same size is sold as: A76AG13L1154303357 (silver-oxide version)SR44 (silver-oxide version)