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Features Wide operating temperature range: -40 deg. C to +125 deg. C*

* When using at temperatures exceeding 85 deg. C, please consult Maxell in advance for conditions of use.

Superior leak-resistant characteristics even under high temperature and acceleration. Can be used even under 2000 G, which is equivalent to driving at 300 km/h. Even when exposed to high temperature or humid atmosphere for long periods of time, the increase in internal resistance can be suppressed. UL Recognized Components

The heat resistant coin type lithium manganese dioxide battery is a UL recognized component. (Technician Replaceable)

Recognized model: CR2450HR, CR2050HR, CR2032HR, CR2032HRS

Certification Number: MH12568

Applications

TPMS (Tire-Pressure Monitoring System)

ETC (Electronic Toll Collection systems)

Keyless entry systems

Seat location sensors

Communication tags, beacons

Temperature data loggers (HACCP temperature loggers)

Logistics tags

FA instruments (measuring instruments, onboard microcomputers, sensors)

IoT sensors

Virtual Patent Marking

The list of U.S. patents associated with this product is provided on our Virtual Patent Marking page.

Additional patents may apply in other countries.

Important notice: Technician replaceable component

Maxell Heat Resistant CR (lithium manganese dioxide) batteries are available only for equipment manufacturers as a built-in part. Therefore, Maxell does not supply these batteries for replacement directly to users of equipment. When built-in Heat Resistant CR batteries need to be replaced, please contact your equipment manufacturer. If you are planning to use Maxell Heat Resistant CR batteries in your equipment as a built-in part, please contact Maxell.

Inquiry

Specifications

Model CR2032HRS   CR2032HR   CR2050HR   CR2450HR  
Nominal Voltage (V) 3   3   3   3  
Nominal Capacity (mAh)*1 200   200   350   550  
Nominal Discharge Current (mA) 0.2   0.2   0.2   0.2  
Operating Temperature Range (deg. C)*2 -40 to +125  
Acceleration Resistance Max. 3300 G   Max. 2000 G  
Dimensions*3Diameter (mm) 20.0   20.0   20.0   24.5  
Height (mm) 3.2   3.2   5.0   5.0  
Weight (g)*3 3.0   3.0   4.1   6.8  
Data Sheets -  

 

 

 
Drawings of Batteries
with Terminal or Wire Connector -  

 

 

 
Warnings

 

Nominal capacity indicates duration until the voltage drops to 2.0 V when discharged at a nominal discharge current at 20 deg. C.

When using these batteries at temperatures exceeding 85 deg. C, please consult Maxell in advance for conditions of use.

Dimensions and weight are for the battery itself, but may vary depending on terminal specifications and other factors.

Data and dimensions are not guaranteed. For further details, please contact your nearest Maxell office.

Contents on this website are subject to change without notice.

Construction

Principle and Reactions

The coin type lithium manganese dioxide battery uses manganese dioxide (MnO2) as its positive active material, lithium (Li) as its negative active material and an organic electrolyte.

Battery Reactions Positive reaction : MnO2+Li++e- → MnOOLi  
Negative reaction : Li → Li++e-  
Total reaction : MnO2+Li → MnOOLi  

Storage Characteristics under High Temperatures

Little deterioration in capacity due to high storage temperature of 80 deg. C, compared to CR2450 battery.

Storage Characteristics under High Temperature/Humidity

Little deterioration in internal resistance due to high humidity (60 deg. C/90%RH), compared to CR2450 battery.

Discharge Characteristics

　

Temperature Characteristics

　

Safety precautions

If misused, this battery may deform, leak (the liquid inside the battery may leak to the outside), generate heat, explode, or ignite.
Since such misuse may cause injury or equipment failure, please be sure to read and observe [Warnings and Cautions].

Inquiry

You can download various materials from the links.

Catalog

Downloads (SDS, Regulatory and Environmental Documents)

Safety Data Sheet (SDS)

Composition/component information, storage, and disposal methods, etc.

Declaration of Conformity for EU Battery Regulation

EU Declaration of Conformity, Declaration of Conformity for EU Battery Regulation (REGULATION (EU) 2023/1542 Article 6)

Declaration of Conformity for Environmental Laws and Regulations

Declaration of Conformity for EU Battery Directive, Declaration of Conformity for RoHS Directive, etc.

Lithium Battery UN38.3 Test Summary/Drop Test

Summary of test results for lithium batteries during transportation

Certificate of Conformity for IEC

Self-declaration for Maxell batteries' compliance with IEC Standards.

Management System Certification

Certification Status of ISO 9001, IATF 16949, ISO 14001, ISO 45001

Notes on Rules and Regulation

Update on Dangerous Goods Transportation Regulations for Lithium Cells and Batteries

Information on transporting lithium metal batteries and lithium-ion batteries