Batteries / ML
ML2020
Rechargeable lithium manganese dioxide
Second-source check pending Rechargeable cellReviewed:
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 ML2020 before replacement
Documented battery characteristics
ML2020: Rechargeable lithium manganese dioxide, 3 V, Ø 20 × 2 mm. These are reference battery dimensions, not a verified device fit. Cell and battery pack shapes, contact layout and charging requirements can differ.
Rechargeability and product-specific charging specifications do not establish suitability for a charging circuit. Do not replace primary cells with rechargeable cells based on size or voltage.
Manufacturer markings in the dataset
ML2020
What to check before replacing ML2020
No device-specific fit or safe replacement is confirmed.
Technical specifications
| Designation | ML2020 Documented source [Panasonic] |
|---|---|
| Chemistry | Rechargeable lithium manganese dioxide Documented source [Panasonic] |
| Nominal voltage | 3 V Documented source [Panasonic] |
| Diameter | 20 mm Documented source [Panasonic] |
| Height | 2 mm Documented source [Panasonic] |
| Rechargeable | Yes Documented source [Panasonic] |
| Terminal form | Bare cell without tabs or leads Documented source [Panasonic] |
| Body form | Button cell Documented source [Panasonic] |
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.
No additional documented designation.
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 ML2020Documented source
Current availability not checked [Panasonic]
Manufacturer product charging data
- Published charging voltage range
- 2.8 V – 3.2 V
- Manufacturer nominal capacity
- 45 mAh
- Manufacturer nominal drain
- 0.12 mA
Published manufacturer product values, not charger-design instructions or approval for a device. Capacity is product-specific. [Panasonic]
Replacement limits
Device compatibility has not been verified. Dimensions alone do not prove that a battery fits or works.
Rechargeable does not mean interchangeable. Charging circuitry, terminal shape and device compatibility have not been verified. Never charge a primary cell.
Replacement evidence by category
Other markings of this technical type
No additional documented designation.
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.
Documentary limits
ML2020: The device charging circuit, terminal geometry and complete capacity-test conditions have not been verified for this exact product. Do not assume charger compatibility. Published technical records: ML2020. Device-level compatibility must be verified separately.
Sources & verification
- Panasonic · v028-src-ml2020 Documented source
Panasonic Energy ML2020 manufacturer product specifications
Current availability not checked
· Reviewed:
Common questions
What size is ML2020?
Ø 20 × 2 mm
Can ML2020 be recharged?
This is a rechargeable cell, but charging is permitted only according to the manufacturer specification for the exact product and an approved device charging circuit. The database does not verify charger or device compatibility. Never charge a primary cell.
Can ML2020 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 ML2020.