After earlier USB-C discussions, I'm wondering about chargers for rechargeable NiMH AA and AAA batteries. These batteries are still amazing work horses after many decades, having upgraded their ...

Efficient Charging: The POWEROWL 12 Bay AA AAA Battery Charger is designed ... USB High-Speed Charging: With a USB input, this battery charger offers convenient and flexible charging options.

USB chargers are everywhere and it is the responsibility of every hacker to use this commonly available device to its peak potential. [Septillion] and [Hugatry] have come up with a hack to ...

A fast USB car charger can be a great backup power source for laptops, battery banks, and other devices during emergencies or ...

[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 ...

fitting AAA or AA batteries, operating from a USB fitting and offering LED lights to indicate their charge level. Also, an automatic timer shuts the charger off after 10 hours so you can't over ...