Inside Batteries

Albert Einstein is reputed as saying that everything should be made as simple as possible, but no simpler. In March, Manage Your Electrons, attempted to explain certain concepts and principles without overwhelming readers unfamiliar with batteries and electrical systems. In so doing, we may have violated Einsteins directive, because weve gotten a lot of mail complaining at our oversimplification. So, here is a more detailed explanation of much of what we conveyed in that article.

nganapathy

Monday, April 16, 2018 at 12:00 AM ET

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Key Takeaways:

Lead-acid battery capacity (Amp-hours) is not linear; it is significantly impacted by the discharge rate (Peukert's law) and decreases notably in cold temperatures, meaning lower electrical loads can extend battery life disproportionately.
Battery lifespan and performance degrade due to sulfation, a process where lead sulfate forms stable crystals from discharge cycles, insufficient charging, or prolonged storage, reducing the battery's active material.
Proper maintenance, including using battery maintainers and adhering to manufacturer guidelines, is crucial for maximizing battery utility and ensuring safe operation, such as reducing electrical loads during emergencies.

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Albert Einstein is reputed as saying that everything should be made as simple as possible, but no simpler. In March, “Manage Your Electrons,” attempted to explain certain concepts and principles without overwhelming readers unfamiliar with batteries and electrical systems. In so doing, we may have violated Einstein’s directive, because we’ve gotten a lot of mail complaining at our oversimplification. So, here is a more detailed explanation of much of what we conveyed in that article.

The Basics

Let’s start with an explanation of how electrical current, voltage, power and charge are related to each other. We will be using the International System of Units (SI) in the following explanations.