But if these batteries are rechargeable, you need a charger. That’s where [Jon]’s entry for the Hackaday Prize comes in handy. It’s a small, cheap charger for LIR2032 and other rechargeable ...

[Eggmont] was facing this dilemma with a Makita battery from a broken angle grinder and decided to make a USB charger out of it. [Eggmont] took the simplistic approach, using an old cigarette ...

If you’re making the switch to rechargeables, you’ll need a charger to keep them powered. The Panasonic Eneloop BQ-CC55 is small and compact, and charges up to four batteries at once.

There’s a strong case for dedicated motorcycle battery chargers. Most batteries will become discharged if the bike is left alone for a period of time (sometimes as little as a couple of weeks ...

Easy to hold and satisfyingly fast charging for a reasonable price, I've just found my new favorite for those times when I ...

Amazon's October Prime Deal Days is a great opportunity to score a good deal on a charger or power bank—whether you're ...

The Anker 622 magnetic battery and foldable phone stand charger comes in a variety of colors. They are all part of the Prime ...

Can I charge my phone with a weaker charger? Yes, it will just take longer. Is fast charging bad for my phone's battery? No, but it also depends. Phones are supplied with batteries designed for ...

Is your phone, tablet, or laptop typically in the battery red zone before the day's end? These portable chargers and power banks give you the most boost when you're out of juice. I’m a Mobile ...

Solar battery chargers address these issues by keeping your car battery topped up with a steady supply of free and environmentally friendly energy. But do they work and which solar charger is the ...

Want to charge your iPhone more quickly? Check out our favorite fast iPhone chargers to top off your battery in a flash. I’m one of PCMag’s mobile analysts. That means I check out phones ...