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What battery does a digital bathroom scale use?
Most digital bathroom scales take a CR2032 (3 V lithium coin cell). Some use AAA or CR2450 instead. Flip the scale over: the battery cover is underneath and the battery code is printed on it.
| Battery | How common | Size | Volts | Capacity |
|---|---|---|---|---|
| CR2032 | Most common | 20 mm × 3.2 mm | 3 V | ≈ 225 mAh |
| AAA | Also used | 10.5 mm × 44.5 mm | 1.5 V | ≈ 1,150 mAh |
| CR2450 | Also used | 24.5 mm × 5 mm | 3 V | ≈ 620 mAh |
Digital Bathroom Scale battery: what to know
- Most slim glass digital scales use one or two CR2032 coin cells.
- Some scales, especially smart scales, take three or four AAA batteries.
- Some larger scales use a CR2450, which is wider and thicker than a CR2032 and not interchangeable with it.
How to check which battery your digital bathroom scale takes
Flip the scale over: the battery cover is underneath and the battery code is printed on it. Battery codes are printed on the flat face of coin and button cells and along the side of AA, AAA and 9V batteries. Match the code exactly: a CR2025 or CR2016 is the same width but thinner, and a CR2450 will not fit.
AAA: NiMH rechargeable AAA (HR03) is 1.2 V and 800–1,100 mAh. Lithium AAA (FR03) lasts longer in cold and high-drain use.