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 Item: Solar backpack Solarwalker 521 Introduction: Solar Backpack looks like an ordinary backpack. But it has a monocyrstalline solar panel on the front. This absorbs the sun's energy, transferring it into an electrical charge which is stored in a power pack, hidden inside. Attach your hand-held appliance (mobile, digital camera, iPod or MP3 player) to the charger and viol: full power whilst you're on the move. Of course, the Solar Backpack is also extremely comfortable to carry, with ultra soft padded back and a number of buckles that can be fastened to make it easier to on your shoulders. Better still, the Solar Backpack has a number of compartments for your belongings - look here: a divider which you can use to secure folders or a laptop. Plus, a compartment with a Velcro-sealed pouch for loose change and a concealed zipped pouch to store a wallet, phone, or iPod. Turn it over and there's a small pocket containing a rain cover - ideal for protecting the whole bag from wet conditions. Or bat droppings. Includes: - Includes rechargeable battery pack and adaptors for Nokia, Motorola, Ericsson and different mobile phones, plus a mini USB connector.
- Built-in water-proof sleeves and storage pouch
- Headphones access
- Capacity: Approximately 15 liters
Specification - Dimensions: Height: 50.0cm Width: 10.0cm Depth: 35.0cm
- Weight: 1.0Kg
 Solarwalker 521 Voltaic Backpack The Voltaic Backpack is built tough for use as a weekend hike bag or as a large daypack. There are pockets and wire channels for multiple electronic devices and 1,850 cubic inches of storage space.
4 watts of solar power for fast charging The solar panels protect fragile items inside Included battery pack which stores power until you need it 11 adaptors for easy connection to handheld electronics Fully padded laptop sleeve for up to a 17" laptop (16.5" x 11" x 3" or 42cm x 28cm x 7cm) Wire channels throughout the bag for headphones, bladder tubes etc. Adjustable phone / MP3 pouch on the shoulder Removable waist strap High density padding in the shoulder straps and back Mesh backing material for better air flow Shell uses 600D fabric made from recycled PET (soda bottles), which is tough, water resistant and light weight
Note: It is not designed to charge laptops, it will however charge cell phones, sat phones, PDAs, GPSs, iPods, cameras and most other handheld electronics
Within Mineture, we havefour kinds of solar charger brands.they are listed below solarwalker 519, solarwalker 518, solarwalker 520 solarwalker 530 or you may direct the page to power bank-power storage (non-solar powered)
New ,solarwalker 530 
solarwalker 530 
solarwalker 530 
Solarwalker 519 Technical details: 1.Solar panel: Photovoltaic peak power: 1.54W Working voltage: 5.5V (max)
2.Host: Storage battery capacity: 2500mAh/3.8V
Output voltage: 4.5--9V and 4.5V/5V/6.3V/9V selectable
Output current: 1A (max)
Output power: 4W (max)
Input interface: DC
Output interface: USB
Dimension: 136*80*24mm Weight: 240g Charging time:
8-10 hours (illuminating scope: 100mW /Cm2)
3-4 hours (indoor power: 5V /500mA)
Discharging time: 2.5 hours (the output: 5V /500mA)
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