With the debut of its first Neue Klasse, or “New Class” EV, in just a few months, BMW is giving us a closer look at the batteries and electric drive systems. BMW revealed new details of its ...

In the quest to bring EVs up to par with hybrids and internal combustion engine cars on these two fronts, automakers have been working hard to develop better battery technology. It seems like BMW ...

In the olden days of disposable batteries, there wasn't much in the way of efficient power regulation. You just used the batteries until they stopped giving power, and then you chucked them in the ...

In most cases, the problem is easily remedied by replacing the battery. The good news is that most key fob batteries will last for years. Exactly how long is hard to quantify as factors like ...

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Alkaline batteries work best for remote controls and low drain devices. Here are CNET's favorites for long battery life. Alkaline batteries are needed more often than you may think. They're ...

But claims of some imminent breakthrough that will slash battery expenses never seem to pan out—getting costs down likely will continue to be an incremental grind over years.

If you had asked me a half-a-decade ago what I considered to be the weakness of modern smartphones, I'd have said the battery life. Phones used to last hours at a time, and you'd have to find a ...

Devices get more energy-efficient as batteries get larger, but battery life is still a concern for most users. Such is the nature of modern tech, but this doesn’t mean we should be plugging in ...

One of the most important and objective tests we conduct is a standardized battery test. We're proud of our battery test, which we've developed to simulate a typical daily usage pattern for most ...

Why does it always seem like your car battery chooses the day you’re running late to get to work in the cold, dark, snow, or rain to give up the ghost and stop working? You jump in the car ...