Stay Charged Up: Your new outdoor backpack is also your new on-the-go solar charger. When you’re hiking, camping, skiing, fishing or whatever you do outdoors, you might as well charge your stuff while you’re at it. The Mountaineer has everything you need in a stylish, rugged backpack, along with a flexible (and detachable) 6.5W solar panel. Power At Your Fingertips: Provides ideal power for your smartphone, camera, iPods and iPads or any device up to 5V. You can even use it to keep portable chargers like our FUEL+ fully charged and ready to go. Comfy and Sturdy: 40L internal capacity with multiple tech organization pockets makes the Mountaineer a great general use or outdoor day pack. It has a padded and ventilated back panel and padded straps for all-day comfort while on your outdoor adventures. 11.8" (30cm) USB-to-Lightning cable included. Solar Panel Specifications: 6.5W high-efficiency detachable solar panel can operate in temperatures ranging from -4 to 176 F (-20 to 80 C). Full charge time may range between 6-10 hours, depending on the device and current charge level. Ideal for smaller smart devices like smartphones and portable speakers. Measurements and Specifications: Lightweight and durable 100% ripstop nylon. Mountaineer weighs 3lbs (1.4 kg) and measures 20” x 13.7" x 8.6" (52 x 35 x 22 cm). Introducing the Outdoor Tech Mountaineer Hiking Daypack with Solar Panel Charger. Our backpack can provide you with the convenience of having a reliable source of power during extended hikes and outdoor activities. With a solar panel attached to it, you can charge your devices on the go. Keep your phone, GPS device, and other electronics charged and operational, allowing you to stay connected and prepared for any situation. In case of an emergency, the solar charger can be used to power a radio or other communication device, keeping you connected to the grid. Use it to charge your flashlight or lantern, ensuring you have reliable light during the night. Additionally, using a solar panel charger backpack like ours is an eco-friendly way to power your devices, as it uses renewable energy from the sun. It is an essential tool for anyone venturing into the wilderness.