Solar Backpacks suppliers 鈪? Description The removable large size 30W camouflage solar hiking backpack can achieve emergency charging, it has three folds which is more efficient than single solar panel attached in the backpacks. You can enjoy the free and unlimited power source and no need to worry about the lack of durable power! After testing, the charging speed is much faster than other solar charging products on the market, it`s about 3 hours to fill a 3000mAh mobile phone battery. Considering that cloudy and overcast weather can reduce its charging efficiency, it is equipped with a mobile power supply with high safety performance. It is convenient to store electricity in sunny days. Of course, the mobile power supply can be charged with a power adapter or USB. - Working Principle The appearance of solar backpack looks like a bread, but with a piece of solar panel in front of the bag. The solar panels are made by monocrystalline, it will absorb the solar energy and converts it into electrical charge. Finally, the electrical charge will be transmit through an terminal box or cable line to charge your phone, MP3 and charger of digital camera directly. 鈪? Advantage Our 30W solar hiking backpack is made by backpack, high efficiency solar panel and mobile power bank. You might be attracted by its appearance of concise and vogue and super high texture at the first sight. In order to adapt to the market demand of high-end young groups invited famous designers specially designed. Its material is the Nylon fabric, strong and durable. Color to blue, white and gray three - tone, Concise and vogue. Its comfortable handle, professional ergonomic backboard and weight design, helps us to carry it easily, which is suitable for climbing, camping and hiking. [Water-proof material] It applying new upgraded waterproof fiber fabric, no afraid of rains and splashes, the rainwater won`t get penetration, one wipe to dry. [Multiple layer] The solar travel backpack is humanely set up with a multifunctional layer, inner layer and outer layer with powerful storage functions. Applying 600D high quality Nylon fabric and designed several pockets, it can be reasonably and conveniently placed various digital products and hiking accessories. The inner layer has a 50L large enough capacity and a unique shock-proof design, which can be safely placed the notebook and daily necessities needed for travel. [Detachable solar panel] The removable solar panels are convenient to be used outdoor separately. It can be folded and placed at the backpack`s backside. The detachable designs allows you to own two types of bags that is Hiking backpack and chargeable backpack. When you`re outside of home facing the problem of powerless, solar backpack is a good choice for you which helps you charge devices easily without bothering. Once fully charged your loads or there is a rainy day, the solar panels can be detached. Pro-environment, Energy-saving, Low carbon [Mini Power bank] To avoid unstable current, a 5000 mAh battery power bank contained in the solar backpack to charge your USB devices. Power sources been stored in the storage battery and discharge through the bank safely. [Qualified design] Back using three-dimensional honeycomb back pad more breathable equipped with breathable panel, heat and stuffy insulation. It is breathable, fresh, light, non-slip, shock absorption. [High convert efficiency] The surface packaging material of Solar Hiking Backpack is made of ETFE material, which has the characteristics of high light transmittance, water resistance, ultraviolet resistance and oxidation resistance to protect the battery cell. Stacking multilayer composite material improves the overall toughness and strength of the component, without fear of bending and falling. The solar cell adopts efficient and lightweight shingled technology, and the components are laminated together, which cause solar panels` photoelectric conversion rate of 24% is much higher than similar products. 鈪? Product Parameters Color: Camouflage Size: 380x150x620 mm, 50L Material: 600D NylonLining: Nylon Maximum Power: 30W Output Parameter: 5V/3A; 9V/2A; 12V/1.5A Output Interface: USB Function characteristics Carry lightlyDry and breathableWaterproof fabricLarge capacity Applications Details Double Water Bags USB Indicators 50L large Space Climbing Hooks Waist Support Card Buckle Smooth Zipper Fold for Storage Protect the Back Belt 鈪? Why do you need it? No Power = No safety The true meaning of solar backpack shows you where there is the sunlight, there is power sources. Outing and outdoor activities always brings the problem of electricity outrage. And here are some simple reports. 95% of the world's population suffers from 'low battery anxiety' 83% of people asked to borrow chargers outside their homes 65% need to reach out to family or colleagues 55% look for restaurants to use their outlets To avoid the anxiety of low battery, prepare one solar hiking backpack or solar charger is necessary! Solar Backpacks suppliers website:http://www.tongsolar.com/outdoor-solar-products/solar-backpacks-solar-bags/