Required CR1220 → candidate LR44 — LR44
Voltage and dimensions differ. These types are not recorded as direct replacements.
- Match the device voltage and holder.
Batteries / CR
CR1220
Lithium / manganese dioxide
Cross-checked Primary batteryReviewed:
3 VNominal voltage
Ø 12.5 × 2 mmReference dimensions
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 CR1220 before replacement
Identify the actual battery
CR1220 is a documented Lithium / manganese dioxide primary cell with a nominal voltage of 3 V. Its reference diameter is 12.5 mm and its reference height is 2 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 5012LC, ECR1220, DL1220 with CR1220. 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
The following types share the same reference diameter as CR1220. Their height, chemistry or voltage may differ. They are comparisons, not approved substitutes:
Commonly confused markings and sizes
CR1220 has a documented 12.5 mm reference diameter and a 2.0 mm height. Do not derive its precise dimensions by reading the digits in the type code as a universal measurement rule.
What to check before replacing CR1220
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 CR1220. 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 | CR1220 Cross-checked using documents from two independent publishers [Energizer] [Maxell] |
|---|---|
| Chemistry | Lithium / manganese dioxide Cross-checked using documents from two independent publishers [Energizer] [Maxell] |
| Nominal voltage | 3 V (Nominal) Cross-checked using documents from two independent publishers [Energizer] [Maxell] |
| Diameter | 12.5 mm Cross-checked using documents from two independent publishers [Energizer] [Maxell] |
| Height | 2 mm Cross-checked using documents from two independent publishers [Energizer] [Maxell] |
| Rechargeable | No Documented source [Energizer] |
| Terminal form | Bare cell without tabs or leads Curator assessment [Energizer] |
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.
5012LC[Energizer]ECR1220Energizer [Maxell]DL1220Duracell [Maxell]
Documented brands
DuracellEnergizerMaxell
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.
Energizer CR1220Documented source
Current availability not checked [Energizer]
| Capacity | 37 mAh (Typical) Documented source [Energizer] |
|---|---|
| Test resistance | 45,000 Ω Documented source [Energizer] |
| Cutoff voltage | 2 V Documented source [Energizer] |
| Test temperature | 21 °C Documented source [Energizer] |
| Test schedule | Continuous discharge Documented source [Energizer] |
| Weight | 0.8 g (Typical) Documented source [Energizer] |
| Minimum product diameter | 12.25 mm Documented source [Energizer] |
| Maximum product diameter | 12.5 mm Documented source [Energizer] |
| Minimum product height | 1.8 mm Documented source [Energizer] |
| Maximum product height | 2 mm Documented source [Energizer] |
| Minimum operating temperature | -30 °C Documented source [Energizer] |
| Maximum operating temperature | 70 °C Documented source [Energizer] |
Maxell CR1220Documented source
Current availability not checked [Maxell]
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
5012LC · ECR1220 · DL1220
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
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.
Documentary limits
The Energizer CR1220 document gives 45 kΩ in the capacity rating and 62 kΩ in an application table. The 37 mAh observation retains the 45 kΩ rating conditions.
Sources & verification
- Energizer · en-cr1220 Documented source
Energizer CR1220 product datasheet
Current availability not checked
1220GL0618 · Reviewed: - Maxell · maxell-cr Documented source
Coin Type Lithium Manganese Dioxide Batteries (CR)
Current availability not checked
· Reviewed: - Energizer · energizer-primary Documented source
Battery Comparison Chart: primary and rechargeable batteries
Current availability not checked
· Reviewed: - Maxell · maxell-crossref Documented source
Micro Battery Cross Reference and Replacement Guide
Current availability not checked
October 2017 · Reviewed: - Energizer · en-a76 Documented source
Energizer LR44 product datasheet
Current availability not checked
EBC - 4407F Page 1 of 1 · Reviewed:
Common questions
What size is CR1220?
Ø 12.5 × 2 mm
Can CR1220 be recharged?
No. Do not charge primary cells.
Can CR1220 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 CR1220.
How does CR1220 differ from BR1220?
CR1220 and BR1220 have reference heights of 2 mm and 2 mm respectively, and nominal voltages of 3 V and 3 V. Their chemical systems are Lithium / manganese dioxide and Lithium / polycarbon monofluoride. These comparisons do not establish a permitted replacement.
Open technical comparison: BR1220
This is a technical comparison, not an equivalence or fit certificate.