In this article, I will take apart a Li-ion alternative to the classic 6F22 9V battery. This battery is a Chinese 9V/500mAh USB rechargeable Li-ion battery (sold under the brand name infinite). The ...
I've got some old cords that have a micro-usb port on one end and a wall plug on the other. These are for charging mobile phones I used to have. Should I toss them or save them for future phones I'll ...