4W Solar Panel Charger Built-in 2000mAh Battery Outdoor IP65 Waterproof Solar Charging Panel with Rubber Plug Micro USB Cable & 360° Adjustable Mount for Blink XT/XT2 for Blink Outdoor Camera(3rd Gen). The solar panel comes with a built-in 2000mAh rechargeable battery. Once fully charged, it automatically charges your camera, ensuring stable charging even when sunlight is intermittent. It provides continuous power to your cameras, even on cloudy days (after the battery is fully charged), offering enhanced protection for your cameras.