Thickness — 1.6 mm vs 3.2 mm
CR2016 is 1.6 mm thick; CR2032 is 3.2 mm. Holders are built for one stack height. The thinner cell loses spring pressure (“works only when I press the cover”). The thicker cell jams the door or bends the clip.
Not interchangeable
CR2016 vs CR2032
CR2016 vs CR2032: Same Diameter, Half the Height
CR2016 is the ultra-thin 20 mm lithium coin at 1.6 mm height. CR2032 is the everyday 3.2 mm version — nearly twice as thick with much higher capacity.
Last verified Aug 25, 2026
Are CR2016 and CR2032 interchangeable?
Do not substitute CR2032 for CR2016 — the thicker cell can damage holders.
A CR2032 vs CR2016 swap fails on thickness, capacity. If the door only closes when you force it, or the device works only while you press the cover, you have the wrong cell — not a weak spring you should ignore.
CR2016 vs CR2032 specs: thickness, capacity
They share 3 V and LiMnO2 and 20 mm diameter, which is why CR2016 vs CR2032 looks interchangeable on a store shelf. Highlighted rows are the ones that change the purchase: thickness, capacity.
Read physical fit before capacity. Extra milliamp-hours only help when the holder is built for that cell. A “better” spec in the wrong tray is a mechanical or voltage mismatch, not an upgrade.
| Spec | CR2016 | CR2032 |
|---|---|---|
| Chemistry | LiMnO2 | LiMnO2 |
| Nominal voltage | 3 V | 3 V |
| Diameter | 20 mm | 20 mm |
| Thickness | 1.6 mm | 3.2 mm |
| Outline | 20 × 1.6 mm | 20 × 3.2 mm |
| Typical capacity | 90–100 mAh | 220–240 mAh |
| Typical energy | — | 0.66–0.72 Wh |
| Typical weight | — | 3.1 g |
| Fresh open-circuit voltage | — | 3.2–3.4 V |
| Unused shelf life | ~10 years | ~10 years |
| Category | lithium-coin | lithium-coin |
| Common aliases | DL2016, ECR2016 | DL2032, ECR2032 |
Difference between CR2016 and CR2032 batteries
If you searched CR2032 vs CR2016, you are on the same comparison with the names reversed. The difference between CR2016 and CR2032 batteries is not the word “vs” — it is the specs that do not match after you ignore the similar photos.
Capacity — 90–100 mAh vs 220–240 mAh
Typical CR2016 capacity is 90–100 mAh. CR2032 is 220–240 mAh. Runtime only follows that gap inside the correct holder. Extra capacity in the wrong tray does not last longer — it often does not run at all.
Same 20 mm diameter; 1.6 mm (CR2016) vs 3.2 mm (CR2032)
Same 20 mm diameter; 1.6 mm (CR2016) vs 3.2 mm (CR2032)
CR2032 will not close most CR2016 compartments
CR2032 will not close most CR2016 compartments
Common in ultra-thin remotes and card-style devices
Common in ultra-thin remotes and card-style devices
How the size code works (CR2016 vs CR2032)
Coin and button codes are rulers, not brand slogans. The letters mark chemistry class. The digits encode size. CR2016 measures 20 × 1.6 mm; CR2032 measures 20 × 3.2 mm. Once you read the code that way, CR2032 vs CR2016 stops looking like a preference and starts looking like a fit check.
Can I use a CR2016 instead of a CR2032?
Usually no. CR2016 is 20 × 1.6 mm at 3 V (LiMnO2). CR2032 is 20 × 3.2 mm at 3 V (LiMnO2). Those are not the same part.
If the spent cell or tray said CR2032, specify that code. Forcing CR2016 can crack a cover, lose contact, or apply the wrong voltage.
Can I use a CR2032 instead of a CR2016?
Usually no. Going the other way does not fix a diameter, thickness, or voltage miss. CR2032 in a CR2016 holder has the same problem with the names flipped.
If you arrived from a CR2032 vs CR2016 search, stay on this page. The answer does not change.
Brand labels and aliases
Retail packs hide the IEC size behind house codes. CR2016 also appears as DL2016, ECR2016. CR2032 also appears as DL2032, ECR2032. Those prefixes do not change the outline unless the chemistry letters change (BR, LIR, ML, PR).
How to identify CR2016 versus CR2032
You do not need a full datasheet to settle CR2016 vs CR2032. You need the stamp, the tray, or a cheap pair of calipers. A store bin labeled only “button cell” or “3V lithium” will not do that work for you.
- Read the code on the old cell: CR2016, CR2032, and the brand prefixes that map to each one.
- If the print is worn off, check the tray, battery door, or user manual before buying.
- Measure diameter if the codes are gone: CR2016 is 20 mm; CR2032 is 20 mm.
- Measure thickness: CR2016 is 1.6 mm; CR2032 is 3.2 mm.
- Buy the matching code. Extra capacity or a thicker can only helps when the holder is built for that cell.
Choose CR2016 when…
- Device or old cell says CR2016 / DL2016
- The tray is extremely shallow
Choose CR2032 when…
- Device says CR2032
- You need longer life and the holder is built for 3.2 mm
Compatibility and substitution
Never force a CR2032 into a CR2016 slot. If contact is marginal with the correct cell, clean the contacts rather than upsizing thickness.
Do not stack cells, grind a can, or use foil as a permanent spacer to fake CR2032 with CR2016. Read the stamp, then the spec table. If the door will not close without force, you have the wrong height or diameter.
CR2016 vs CR2032 FAQ
Is CR2016 half of a CR2032?
Roughly half the height and much lower capacity, but it is a different product — not something you combine or stack.
I searched CR2032 vs CR2016 — is this the right page?
Yes. CR2016 vs CR2032 and CR2032 vs CR2016 are the same pair. Fit, voltage, and chemistry do not change when you flip the order.
Should I always trust a cross-reference chart?
Use this guide as a starting point, then confirm voltage, chemistry, and physical size with your device manual or the marking on the old cell.
Review record and primary sources
Reviewed by PlainBattery Technical Review Desk on 2026-08-25. Checked: both model identities and dimensions, voltage and chemistry differences, physical fit, interchangeability conclusion and safety warnings.
- Lithium Technical Handbook: CR Coin-Type Batteries — Panasonic Energy, 2020 handbook (2020). CR/BR dimensions, nominal voltage, capacity, discharge and temperature characteristics.
- Energizer CR2032 Product Datasheet — Energizer Brands, CR2032EU0118 (2018). CR2032 dimensions, capacity test conditions, voltage, pulse discharge and safety.
Revision record: source citations and field-level review scope added September 11, 2026. See our sources and methodology and corrections policy.