#Cr2025 lithium battery how to

Sadly every battery will have some internal resistance associated with it which will prevent you from drawing maximum current from the battery. The CR2025 datasheet also provides a neat graph to understand the sameĪnother 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 (163/20) 8.15 hours. This means that if we draw 163mA, then our battery will last for 1 hour and similarly if we draw 81.5mA then the battery will last for 2 hours. Then in that case the mAh capacity of our battery is 163mAh. 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. The CR2025 is a commonly used battery for portable electronics applications.

#Cr2025 lithium battery how to

How to calculate the run time of your CR2025 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. So, according to this 20mm is the diameter of CR2025 and 2.5mm is the thickness. The name defines the size of the battery like for CR2025, 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. Typical Capacity: 163 mAh 20☌ 15kΩ LoadĬoin cell batteries like CR2025 are generally used for small portable electronics devices such as wrist watches, pocket calculators, automobile key less entry transmitter and hearing aids.