[Aaron Christophel] has a battery spot welder that costs a not unreasonable 30 euros and can also be used as a novelty power bank. He subjects it to a test and teardown in the video below the break.

Did you ever see a thin metal tab bonded to a battery terminal with little pock marks? That’s the work of a spot welder. Spot welding is one of those processes that doesn’t offer much in the ...

And they don’t always come from the best manufacturers. That includes DIYers who buy generic battery cells, spot welders, and soldering irons online to build their own packs. Other hackers try ...

I promise this isn’t another article claiming that a battery revolution is peeking from ... with the tech are looking for a sweet spot — a composite anode containing just enough silicon ...

The big battery pack that powers an electric car may look a lot different than the AA or AAA battery you use in various household devices, but at their core, these seemingly dissimilar energy ...

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 ...

This tricky brainteaser promises to test the voltage of even the brainiest of individuals. The perplexing puzzle, created by ...

Among his impressive collection, one vehicle stands out that captures the essence of vintage glamour: his black Porsche 356 ...

The Echo Spot is a great addition to the Amazon catalog, serving as a smart alarm clock that can sync with the rest of your Alexa-enabled devices. It's slightly smaller than the Echo Show 5 and ...

Over the past two days I've been working with Joshua Rubin exploring the purchase of a rather unique vehicle from Auto Spot. Throughout ... 24 hrs later it needed a battery and the ac went it ...

He is a Chartered Market Technician (CMT). Investopedia / Joules Garcia The term spot trade refers to the purchase or sale of a foreign currency, financial instrument, or commodity for instant ...