CR3032 battery
What replaces a CR3032
DL3032, ECR3032, BR3032
3 V lithium (primary), 30 × 3.2 mm (diameter × height)
The CR3032 is a single-use 3 V lithium (primary) coin cell. The codes below are the same physical cell sold under different manufacturer names, and any of them will fit.
Specification
- IEC designation
- CR3032
- Nominal voltage
- 3 V
- Chemistry
- Lithium (primary)
- Size
- 30 × 3.2 mm (diameter × height)
- Typical capacity
- 500 mAh
- Rechargeable
- No — never charge it
Codes that mean the same battery
| Code | Fits? |
|---|---|
| DL3032 | Yes — same cell |
| ECR3032 | Yes — same cell |
| BR3032 | Yes — same cell |
Codes that look close but are not
| Code | Why it is not a substitute |
|---|---|
| CR2032 | The same 3.2 mm thickness but only 20 mm across. Sold constantly as a substitute by mistake; it cannot bridge a 30 mm holder. |
The CR3032 is a primary cell and must never be put in a charger. Charging a sealed primary battery builds gas pressure inside a can with no vent designed for it, which is how they rupture or catch fire. Rechargeable look-alikes exist for several sizes and carry different codes — check the code, not the shape.
Where it turns up
- Utility meter and telemetry backup
- Industrial process instruments
- Some marine EPIRB and safety beacons
- Long-interval environmental data loggers
Uncommon in consumer goods; rated at 500–560 mAh depending on brand. The 30 mm diameter is the giveaway — measure before ordering, because the "3032" reads like "2032" at a glance.
Common questions
- What is equivalent to a CR3032?
- DL3032, ECR3032, BR3032 — all the same 3 V cell under different manufacturer codes.
- Can I use a CR2032 instead of a CR3032?
- The same 3.2 mm thickness but only 20 mm across. Sold constantly as a substitute by mistake; it cannot bridge a 30 mm holder.
- Is the CR3032 rechargeable?
- No. It is a primary cell — charging one risks rupture or fire. Rechargeable look-alikes exist in the same size under different codes.
Related pages
- CR2032 battery 3 V lithium (primary)
- CR2025 battery 3 V lithium (primary)
- CR2016 battery 3 V lithium (primary)
- CR2450 battery 3 V lithium (primary)
- CR1220 battery 3 V lithium (primary)
- CR1620 battery 3 V lithium (primary)
- CR1632 battery 3 V lithium (primary)
- CR2430 battery 3 V lithium (primary)
- CR2477 battery 3 V lithium (primary)
- CR1616 battery 3 V lithium (primary)
- CR1225 battery 3 V lithium (primary)
- LIR2032 battery 3.6 V lithium-ion (rechargeable)
Sources
- Typical range compiled from manufacturer specifications — At One Place