Every parent knows the constant cycle of buying or recharging batteries for kid-related products—but the Instructables web site has some guides to modifying your gadgets to use AC power instead of ...

We're in a day in age where battery powered electronics are just an annoyance to most of us. Charging, or even plug-in power is so much easier to use. Instructables user DIYHacksAndHowTos shows off ...

The battery as we know it today was an invention of Italian chemist and physicist Alessandro Volta. He witnessed electricity splitting water into its constituent elements of oxygen and hydrogen and ...

I know that this camera (Sony A6300) is really cool but battery life sucks, so that's why I put together this very simple ...

As modern power generation methods are designed to squeeze the most power from the least amount of fuel, engineers are constantly looking at techniques to improve efficiency. One way to achieve this ...

The harnessing of electricity has played a pivotal role in human history and has exponentially expedited our growth as a species. Since becoming a household commodity in the late 19th century, ...

Editor’s Note —August 12, 2025: We’ve checked our recommendations to verify that these are still in stock and competitively priced. We also added updates to reflect newer models, including the Jackery ...

The revolution in portable and cordless appliances has meant that we now own far fewer mains-powered gadgets than we might once have done, but it hasn’t entirely banished the old AC outlet from our ...

We all know that battery technology has been slow to evolve, and none of the potentially revolutionary next-gen designs have panned out yet. So, why not just skip the battery entirely? Researchers ...

Have you ever wanted to recharge your laptop or phone while you sit on the beach - or at the coffee shop, when all the power outlets are being used by people who have been nursing the same cup of ...

The best electric bike conversion kits offer a potentially more affordable route to electric biking. While electric bikes can be expensive, if you already have a suitable bike, an electric bike ...