This half-inch square ultra-low power energy harvesting LiPo cell charger ... battery health monitoring and undervoltage protection. [Kris] has been using the board along with a small 2.2 Volt ...

Learn how to build your own auto cut-off lead acid battery charger circuit for a 12V system. This DIY project will guide you through creating a reliable power supply, ensuring your battery is charged ...

A solar-powered phone charger is the kind of accessory that sounds unnecessary until you find yourself far from an outlet and ...