What sets a 357 battery apart from an LR44 battery, and what are the differences between the two?

In contrast, the LR44 is an alkaline battery, while the 357 is a silver oxide battery. When compared to the LR44 battery, the 357 battery has a longer useful life and maintains a voltage level that is more consistent over time. The cost of the 357 battery is significantly higher than that of the LR44.

Both the 357 and LR44 batteries generate electricity through distinct chemical processes that are dependent on the materials and components they use. When compared to an alkaline LR44 battery, the performance of a silver oxide 357 battery is significantly higher. A voltage of approximately 1.55 volts is maintained by the 357 battery until its chemical energy is close to being depleted, at which point the voltage begins a precipitous decline. Throughout the entirety of the LR44 alkaline cell’s discharge lifetime, its voltage will gradually decrease.

Even though the manufacturer’s stated capacity ratings in milliamp-hours may appear more comparable, the 357 has approximately twice the useful capacity of the LR44. This is true despite the fact that the LR44 has a smaller overall capacity. Due to the LR44’s more rapid rate of voltage reduction, even if there is additional electrochemical capacity available, the voltage of the LR44 can drop to a point where it is insufficient for a device to function normally.

The 357 battery and the LR44 battery are interchangeable for most applications; however, devices that require a consistent voltage, such as precision callipers and some watches, benefit from the constant voltage performance of the 357 battery. This is because the 357 battery has a higher capacity than the LR44 battery. The 357’s larger useful capacity is beneficial to devices with a higher energy demand because it provides more storage space for the energy.


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