Cylindrical Type Lithium Manganese Dioxide Batteries (CR)

Features

High energy density^*1

High energy density has been achieved by optimizing the filling rate of the material by means of a unique electrode structure.

*1 Volumetric energy density of 15% or more compared to typical cylindrical CR batteries (depending on battery size). Surveyed by Maxell as of March 2024.

Long-term reliability lasting more than 10 years^*2

The employment of a heat-resistant gasket and a laser-seal structure prevents water intrusion and electrolyte evaporation, ensuring long-term reliability that lasts more than 10 years^*2. The self-discharge rate is about 0.5% per year.

*2 Designed lifetime at 20 deg. C when not yet used. Actual lifetime will vary depending on conditions such as discharge current and temperature.

Stable discharge characteristics

The original negative electrode material maintains low internal resistance even at high depths of discharge and ensures stable discharge.

Superior low-temperature characteristics

High safety due to internal short-circuit prevention structure

About Maxell Cylindrical Type CR batteries

Maxell Cylindrical Type 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 with these batteries. When built-in Cylindrical Type CR batteries need to be replaced, please contact your equipment manufacturer. If you are planning to use Maxell Cylindrical Type CR batteries in your equipment as a built-in part, please contact Maxell.

UL Recognized Components

The cylindrical type lithium manganese dioxide battery is a UL recognized component. (User Replaceable)

Recognized models:CR17450A, CR17335A, CR17450AH, CR17500AU

Certification number: MH12568

Applications

• Smart meters (e.g. gas, water)
• IoT devices
• Communication devices (e.g. LPWA, cellular networks)
• In-vehicle devices
• Security devices
• Memory backup power

Specifications

Model		CR17335A	CR17450A	CR17450AH	CR17500AU
Nominal Voltage (V)		3	3	3	3
Nominal Capacity (mAh)*1		1650	2500	3000	3500
Nominal Discharge Current (mA)		5	5	1	1
Operating Temperature Range (deg. C)*2		-40 to +85
Dimensions*3	Diameter (mm)	17	17	17	17
	Height (mm)	33.5	45	45	50
Weight (g)*3		17	22	24	26
Data Sheets
Drawings of Batteries with Terminal or Wire Connector					-
Warnings
UL Certification Number		MH12568

• Nominal capacity of CR17500AU indicates duration until the voltage drops to 1.5 V when discharged at a nominal discharge current at 20 deg. C.
  As for other models, 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 at temperatures exceeding 60 deg. C, please consult Maxell in advance for conditions of use.
• Dimensions and weight are for the battery itself, but may vary depending on the shape of terminals or 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 cylindrical type lithium manganese dioxide battery uses manganese dioxide (MnO₂) as its positive active material and lithium (Li) as its negative active material.

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].