Maxell’s original sealing technology and highly heat-resistant material expands operating temperature range remarkably, making the batteries supremely suitable for automobile applications — for powering TPMS (Tire Pressure Monitoring System) sensors, for example.
The range of technologies where these batteries can be applied is expanding to include IoT sensors and HACCP temperature loggers that require a wide operating temperature range.
Heat-resistant coin-type lithium manganese dioxide battery “CR”
Features
Wide operating temperature range: -40 deg. C to +125 deg. C*
CR2450HR-Ex batteries can even be used at temperatures up to 150 deg. C, depending on other conditions.
* 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 2000G, which is equivalent to driving at 300km/h.
- Electric characteristics are maintained after long periods of exposure to high temperature and humidity.
About Maxell Heat Resistant CR batteries
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 Resitant CR batteries in your equipment as a built-in part, please contact Maxell.
UL Recognized Components
The heat resistant coin type lithium manganese dioxide battery is a UL (Underwriters Laboratories Inc.) recognized component. (Technician Replaceable)
Recognized model: CR2450HR, CR2450HR-Ex, 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
Details
Structural drawing
Principle and reaction
Battery reaction
| Positive electrode reaction: | MnO 2 + Li + + e – → MnOOLi |
|---|---|
| Negative electrode reaction: | Li → Li + + e – |
| All reactions: | MnO 2 + Li → MnOOLi |
High temperature storage characteristics
Capacity deterioration due to high temperature (80 ° C) storage is very small compared to normal CR
High temperature and high humidity storage characteristics
Deterioration of internal resistance due to storage in a humidified atmosphere (60 ° C 90% RH) is very small compared to normal CR
Heavy load characteristics
Safety precautions
This battery contains flammable substances such as lithium and organic solvents, and if used improperly, it may cause deformation, leakage (liquid inside the battery may come out), heat generation, explosion, or ignition. increase. these may cause injury or equipment failure “warnings and precautions” Be sure to observe the as .
Models
| Model | CR2032HR | CR2050HR | CR2450HR | CR2450HR-Ex | |
|---|---|---|---|---|---|
| Nominal Voltage (V) | 3 | 3 | 3 | 3 | |
| Nominal Capacity (mAh)*1 | 200 | 350 | 550 | 525 | |
| Nominal Discharge Current (mA) | 0.2 | 0.2 | 0.2 | 0.2 | |
| Operating Temperature Range (deg. C)*2 | -40 to +125 | -40 to +125
(max.150) |
|||
| Acceleration Resistance | Max. 2000G*3 | ||||
| Dimensions*4 | Diameter（mm） | 20.0 | 20.0 | 24.5 | 24.5 |
| Height（mm） | 3.2 | 5.0 | 5.0 | 5.0 | |
| Weight（g）*4 | 3.0 | 4.1 | 6.8 | 6.8 | |
