Batteries / CR
CR2
Lithium / manganese dioxide
Cross-checked Primary batteryReviewed:
Reference dimensions are not universal manufacturing tolerances. Check the actual cell and holder.
The type status describes documentary checks of core specifications, not every fact or suitability for a device.
Understanding CR2 before replacement
Identify the actual battery
CR2 is a documented Lithium / manganese dioxide primary cell with a nominal voltage of 3 V. Its reference diameter is 15.6 mm and its reference height is 27 mm. These are nominal reference dimensions, not a promise that every manufacturer has identical tolerances.
This dataset describes a non-rechargeable bare cell, without solder tabs or wires. A tabbed or wired assembly requires a separate fit check.
What markings identify this type?
The dataset associates CR15H270 with CR2. The manufacturer may use a different label on the package. These references help identify the type; they do not certify the battery for a particular device.
Similar dimensions in this catalogue
No other type with this reference diameter is currently included in the catalogue. This does not prove that other sizes or alternatives do not exist.
What to check before replacing CR2
Read the original device marking, verify nominal voltage and chemistry, compare diameter and height, and check the contacts and load requirements. Same diameter, identical voltage, or a familiar brand prefix alone is not enough to establish interchangeability.
The available data contains no affirmative device-specific fit test for CR2. A missing compatibility relation means “not assessed,” not “compatible.”
How reliable are these specifications?
Core type characteristics were compared with primary material from at least two independent publishers. This does not verify all model-specific values or physical suitability.
Technical specifications
| Designation | CR2 Cross-checked using documents from two independent publishers [Panasonic Energy] [Energizer] |
|---|---|
| Chemistry | Lithium / manganese dioxide Documented source [Panasonic Energy] |
| Nominal voltage | 3 V Cross-checked using documents from two independent publishers [Panasonic Energy] [Energizer] |
| Diameter | 15.6 mm Cross-checked using documents from two independent publishers [Panasonic Energy] [Energizer] |
| Height | 27 mm Cross-checked using documents from two independent publishers [Panasonic Energy] [Energizer] |
| Rechargeable | No Documented source [Panasonic Energy] |
| Terminal form | Bare cell without tabs or leads Documented source [Panasonic Energy] |
| Body form | Cylindrical cell Documented source [Panasonic Energy] |
Reference dimensions are not universal manufacturing tolerances. Check the actual cell and holder.
Other designations
These codes identify the same type family. Match the load variant, terminals and device requirements separately.
CR15H270Panasonic Energy [Panasonic Energy]
Documented brands
Brand presence comes from product documents or documented code mappings; current availability is not checked.
Product-specific observations
Capacity belongs to an individual product and test regime. It is not a universal value for this battery type.
Panasonic Energy CR2Documented source
Current availability not checked [Panasonic Energy]
Documented product; no individual technical observations in this dataset.
Replacement limits
Device compatibility has not been verified. Dimensions alone do not prove that a battery fits or works.
Replacement evidence by category
Other markings of this technical type
CR15H270
These markings resolve to this type in documented sources. The exact variant and device requirements still matter.
Conditional replacement: review requirements
No conditional cross-type relation is recorded.
Known obstacles to direct replacement
No explicit obstacle is recorded here; that is not evidence of compatibility.
Other type pairs without a recorded assessment
This pair has not been assessed. No compatibility conclusion is available.
No automatic replacement recommendation. Device compatibility has not been verified. Dimensions alone do not prove that a battery fits or works.
Sources & verification
- Panasonic Energy · v023-panasonic-cr2 Documented source
CR2 cylindrical primary lithium product specifications
Current availability not checked
· Reviewed: - Energizer · v023-energizer-cr2 Documented source
Energizer CR2 lithium product datasheet
Current availability not checked
· Reviewed:
Common questions
What size is CR2?
Ø 15.6 × 27 mm
Can CR2 be recharged?
No. Do not charge primary cells.
Can CR2 replace another battery?
Not on the basis of size or matching names alone. Check the exact device requirements and the directed compatibility notes. This catalogue does not contain a guaranteed device-fit recommendation for CR2.