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 ...

thanks to everyone’s great feedback, i’ve now got a usb battery that’s much more efficient and capable of delivering more current to a portable device. like i promised, i put together a ...

The Game Boy Color USB-C Charging Kit is a circuit that allows you to charge a Nintendo Game Boy Color by USB-C and use a Li-ion battery instead of AA batteries. This circuit includes the famous ...