Battery tech is having a quiet revolution. While phones and laptops grab the headlines, the humble AA and AAA cells that keep remotes, toys and headlamps alive are being rebuilt around the same USB-C ...

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 ...

A 1-A USB/ac Li-ion battery charger IC, the SMB135 from Summit Microelectronics offers a combination of features that optimize operation in single-cell applications powered by the USB or other current ...