Comparison
Same diameter (20 mm) lithium coin family, different thickness — not automatically interchangeable.
| Question | Answer |
|---|---|
| Same battery? | No — see chemistry and size below |
| Same dimensions? | Same diameter; thickness differs |
| Same chemistry? | Yes |
| Same voltage? | 3 V |
| Direct substitute? | Only if the device documentation names that exact code |
CR2032 ≈ 3.2 mm · CR2025 ≈ 2.5 mm · CR2016 ≈ 1.6 mm. Same face size; different height. Only use the code your device names.
Do not swap CR2032 / CR2025 / CR2016 by diameter alone.
Do not treat BR2032 as an automatic CR2032 equivalent without checking the device.
From CR2032
From CR2025