Find the right battery before you buy
Search CR2032, LR44, AG13, 377 and other markings. We compare size, voltage and chemistry, then flag look-alikes that are unsafe or unreliable substitutes.
Start with the code on the cell
Popular battery guides
Specs, aliases and replacement limits for the most searched models.
- CR20323V · LiMnO2 · 20 × 3.2 mm3V lithium coin — 20 × 3.2 mm. DL2032 and ECR2032 are the same size, not a thicker cell.Open guide
- CR20253V · LiMnO2 · 20 × 2.5 mm3V lithium coin — 20 × 2.5 mm. Same diameter as CR2032, 0.7 mm thinner. Do not swap them.Open guide
- CR20163V · LiMnO2 · 20 × 1.6 mm3V lithium coin — 20 × 1.6 mm. The thin 20 mm height. Not a stackable half of a CR2032.Open guide
- CR24503V · LiMnO2 · 24.5 × 5 mm3V lithium coin — 24.5 × 5.0 mm. Higher capacity than CR2032; too wide for a 20 mm tray.Open guide
- LR441.5V · Alkaline · 11.6 × 5.4 mm1.5V alkaline button — 11.6 × 5.4 mm. AG13 and A76 are the same cell. Watches should use 357/SR44.Open guide
- SR441.55V · SilverOxide · 11.6 × 5.4 mmSR44 silver oxide cells (also sold as 357 or 303) provide stable 1.55V output in the standard LR44 form factor.Open guide
- SR626SW1.55V · SilverOxide · 6.8 × 2.6 mm377 silver oxide watch cell — 6.8 × 2.6 mm. Not the thinner 364. Alkaline LR626 fits but sags sooner.Open guide
- LIR20323.6V · LiIon · 20 × 3.2 mmRechargeable 3.6–3.7V 2032-size cell. Same outline as CR2032 — not the same voltage or capacity.Open guide
A safer replacement system
Four compatibility grades
Every chart uses the same four labels so a brand prefix is not confused with a different cell.
Same IEC size and chemistry. Brand letters (DL, ECR, AG) are labels, not a different cell.
Same outline and voltage class. A maker suffix or pulse rating may differ; it still fits the tray.
Fits the holder but chemistry, drain, or temperature rating is different. Confirm the device spec.
Wrong voltage, thickness, or chemistry. Do not stack, pad, or force the cell.
Source transparency
Where the data comes from
Charts are compiled from IEC 60086 naming, manufacturer datasheets (Panasonic / Murata, Maxell, Energizer, Duracell), and common retail labels such as DL, ECR, AG, 357, and 377. We do not invent interchangeability. Voltage, chemistry, and physical size must all match. Last verified Aug 25, 2026.
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Frequent CR2032 questions
Browse by chemistry
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