Even in low-light conditions, the solar panel is still able to generate power, because it can sustain battery charge when ...

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 ...

Most solar chargers come with a reverse charge blocking diode to prevent them from draining the car battery at night ...