Cr2032 lithium 3v coin battery how to#
Cr2032 lithium 3v coin battery portable#

The lower the IR (Internal Resistance) the more current you will be able to draw from it and higher the efficiency of the battery will be, the IR of a battery will increase as it ages or due to its operating environment. Sadly every battery will have some internal resistance associated with it which will prevent you from drawing maximum current from the battery. The datasheet also provides a neat graph to understand the same.Īnother important parameter to consider while deciding your battery is the internal resistance of the battery. However this figure will not be accurate due to the varying current and operating temperature of the system. So for our application which consumes only 20mA the battery should last for (240/20) 12 hours. This means that if we draw 240mA, then our battery will last for 1 hour and similarly if we draw 120mA then the battery will last for 2 hours. Then in that case the mAh capacity of our battery is 240mAh. But for the sake of simplicity let us assume that we power a normal load which consumes a constant current of 20mA at 20☌. The life time of the battery depends on the many parameters like operating temperature, discharge current, dynamic loads etc.

Cr2032 lithium 3v coin battery portable#

The CR2032 is a commonly used battery for portable electronics applications.

Cr2032 lithium 3v coin battery how to#

How to calculate the run time of your CR2032 battery Lithium button or coin cell batteries are a bit costly than alkaline, but last longer, weigh less and have a wide operating temperature range.įor the Pulse Discharge and Continuous Discharge Characteristics check the attached CR2032 battery datasheet at the end of the page.

So, according to this 20mm is the diameter of CR2032 and 3.2mm is the thickness. The name defines the size of the battery like for CR2032, the first two digits stands for diameter and second for height or thickness in tenths of mm. Typically they are of compact size, 5-25mm in diameter and 1-6mm in height. Note: Complete technical information can be found in the CR2032 Datasheet linked at the bottom of this page.Ĭoin cell batteries like CR2032 are generally used for small portable electronics devices such as wrist watches, pocket calculators, automobile key less entry transmitter and hearing aids. Typical Capacity: 240 mAh 20☌ 15kΩ Load.Panasonic Lithium Coin CR2032 batteries provide long lasting reliable power in various devices.This battery is frequently used in car key remotes, medical devices, Digital Watches, fitness devices and other electronics. This battery can be used for memory back-up, digital watches, car keys, laser pens, fitness appliances and medical devices such as tensiometers and clinical thermometers. Lithium Coin CR2032 has certain achievements for devices where traditional batteries cannot be used. The result is that Panasonic batteries have won consent for their high reliability and safety under the UL safety standards in the United States and wide recognition over the world. Panasonic has accumulated a wealth of corroborative data on the performance of our batteries that cannot be pinpointed by short-term accelerated tests. Also the effects of environmental factors such as temperature were tested. Repeated tests on the various safety and performance characteristics of this battery have been conducted by Panasonic. Choose the lithium coin CR2032 battery as a powerful source of energy for your small devices. You have enough with one lithium battery in comparison to 2, 3 or more traditional batteries. In short: lots of power in an ultra-compact design. The Panasonic lithium coin CR2032 battery has a high voltage of 3V.

Long-term discharge has been verified at all operating temperatures under low-load discharge conditions. The combination of lithium and manganese dioxide results in a chemically very stable battery. 90% of the original capacity: that is what the Panasonic lithium coin CR2032 batteries still have after even 10 years.