Battery-electric vehicles, or BEVs, are increasingly all over the place. Heck, the bestselling car in the world (the Tesla Model Y) is electric, and in certain parts of the world, you can't stroll ...

The modern battery has come a long way in its 224-year history. In the place of Alessandro Volta’s piles of metal disks and brine-soaked cloth, we now have batteries the dimensions of a graham cracker ...

All electric vehicles have big battery packs that can hold dozens of kilowatt hours of electricity, which are required to power their powerful traction motors for hundreds of miles. For some EVs, ...

Induction ranges and cooktops are becoming more common in the kitchen. Some people consider them safer than gas ranges in terms of emissions and not cooking over an open flame, and many states are ...

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A quick calculation: To estimate a battery’s internal resistance, you can use a simple voltage-drop method when the open-circuit voltage, loaded voltage, and current draw are known. For example, if a ...

From smartphones to laptops to even styluses like the Apple Pencil, many devices rely on lithium-ion batteries. These batteries have become increasingly popular in recent years due to their slim ...

What do you need out of your power source? We’ll look at which one is best for you based on your energy needs. The first time you had to endure a power outage, you were probably unprepared: These ...

Have you ever wondered whether it’s better to replace your Apple iPhone's battery or just get a new phone? Lisa from Grafton, Wisconsin, recently wrote to us with this exact question. Here's what she ...

In the age of fast charging, battery health has become a contentious topic in the smartphone and broader tech industry, especially with Tesla and other electric vehicles gaining popularity. Some argue ...