Nest Cam Battery Premium Solar Panel by Wasserstein. The premium solar panel delivers up to 3.5W of solar power, making it 30% more powerful than the standard Wasserstein solar panel for Nest Cam. The unique 360-degree rotatable mount and a 13ft (4m) cable give you the flexibility to maximize sunlight exposure. No need to take down the camera to charge the batteries as the solar panel keeps your camera powered on around the clock. Designed and manufactured by Google’s leading accessory partner, the Wasserstein Premium Solar Panel has passed the Made for Google certification to ensure 100% compatibility with Google Nest Devices. Made of premium US-engineered solar cells, the Wasserstein Premium Solar Panel quickly charges your Nest Cam with just a few hours of sunlight.