In your home, you probably have a handful of gadgets that rely on batteries: remotes, smoke detectors, wireless keyboards. But instead of having to replace those batteries again and again, those ...

When you think of solar panels, you usually picture giant cells mounted to face the sun. But what if "solar" cells could be charged using fluorescent lights? Subscribe to our newsletter for the latest ...

Dead smoke detector batteries chirping at 3 AM just became ancient history. Researchers at University College London cracked the code on indoor solar power, achieving a record 37.6% efficiency under ...