Datasheet
* Nominal capacity indicates duration until the voltage drops down to 2.0V when discharged at a nominal discharge current at 20 deg. C.
**Dimensions and weight are for the battery itself, but may vary depending on the shape of terminals or other factors.
• Data and dimensions are just reference values. For further details, please contact us at your nearest Maxell office.
• Contents on this website are subject to change without notice.
Hitachi Maxell, Ltd.
2-18-2, Iidabashi, Chiyoda-ku, Tokyo 102-8521, Japan
http://www.maxell.com
•Data and dimensions are just reference values. For further details,
please contact us at your nearest Maxell office.
•Contents on this website are subject to change without notice.
Date of issue: June, 2003
2/2
Supplied voltage to load.
Because a diode and a resistance generate the voltage drop on operating, please take into consideration these
voltage drops for supplied voltage to load.
Using diodes to prevent charging
Please choose diodes with leak current as small as possible. Please keep the charged capacity due to leak
current to within 1% of nominal capacity.
Using and setting protective resistance
Protective resistance is used to prevent the battery from being charged by large surges of current during diode
failure. Please set the resistance so that the maximum current shown in the right table is not exceeded. For
example, say a CR2032 battery is used in sample circuit (A) in combination with a main power source 5 volt.
Since the permitted charge current is 10mA and this battery's voltage is 3V, let resistance be R> = (5V-
3V)/10mA=0.2k ohm, meaning that at least 0.2k ohm is required.
The battery may be regulated by national or local regulation. Please follow the instructions of proper
regulation. As electric capacity is left in a discarded battery and it comes into contact with other metals, it could
lead to distortion, leakage, overheating, or explosion, so make sure to cover the (+) and (-) terminals with
friction tape or some other insulator before disposal.
CR Manganese Dioxide Lithium Batteries
Warnings
Never expose the battery to ultrasonic sound.
Exposing the battery to ultrasonic sound may cause short-circuiting because the inside material is broken into pieces, leading to distortion, leakage,
overheating, explosion, or fire.
Never subject the battery to severe shock.
Dropping, throwing or stomping on the battery may cause distortion, leakage, overheating, explosion, or fire.
Never short-circuit the battery while installing into equipment.
Please be careful when installing the battery not to short-circuit it with metal portions of the equipment.
Use the correct battery suitable for the equipment.
The battery may not be suitable for the specific equipment due to the using conditions or type of equipment. Please select the suitable battery according to
the handling instructions of the equipment.
Never use or leave the battery in a hot place such as under the direct rays of the sun or in a car in hot weather.
If you do, this may cause distortion, leakage, overheating, explosion, or fire.
Never allow the battery to come in contact with water.
If it does, this may cause the battery to rust or lead to distortion, leakage, overheating, explosion, or fire.
Never store the battery in a hot and highly humid environment.
Doing so may cause the performance of the battery to deteriorate. In certain environments, this may lead to distortion, leakage, overheating, explosion, or
fire.
Type Maximum Current
CR2450 15mA
CR2430 15mA
CR2032H 10mA
CR2032 10mA
CR2025 10mA
CR2016 10mA
CR2012 10mA
CR1620 2.5mA
CR1616 2.5mA
CR1220 3.0mA
CR1216 2.5mA
CR1025 2.5mA
Disposal
Handling/Storage
Tape
Battery
Example of vattery insulation
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