High efficiency solar charger circuit tops off those lead-acid batteries

solar-charger

Make your next project solar-powered with this charging circuit. It's completely through-hole, and there are no microcontrollers that need to be flashed. If you can source parts and are handy with a soldering iron building this will be a breeze. Both the maximum system voltage and the low voltage drop out are configurable. After assembly, you just need to attach a regulated power supply to the … [Read more...]