This solar panel can be attached to a back pack(Beetle or Indie or Everest or Blade). Then the solar panel is connected to a battery pack (Tesbank either 12000 milli Amps or 20,000 milli Amps). The battery bank contains the charge generated by the solar panel or charged from your AC connection at home. You would connect your device such as tablet or Gopro, etc to the battery bank to charge your device. Which battery bank should you use? If you are going to charge your laptop and other wireless devices, then you would buy the 20,000 milli Amp battery bank. The 20k battery pack or testbank can charge: Laptop up to 1 to 2 times. Smart Phone up to 8 to 15 times Video camera up to 5 to 12 times Tablet up to 3 to 7 times GPS up to 15 to 30 times DSLR camera up to 5 to 10 times DVD player up to 4 to 8 times MP3 player up to 15 to 30 times Gaming devices up to 15 to 25 times Gopro up to 19 to 20 times Bluetooth speakers up to 5 to 15 times Bluetooth head phones up to 70 to 90 times. For example, Let's say you take your laptop to the beach with a fully charged battery that is inside your laptop. T hen you use up all the battery in your laptop, you can then connect your laptop to the testbank/battery pack. (If you want, while at home you can charge your 20k testbank directly to your AC outlet). It takes about 5 hours to charge completely. (The 12k battery bank takes about 4 hours to charge with your AC connection at home.) Since you are at the beach getting some sun, you connect the solar panel to your battery pack, so you can keep charging your battery pack. This way you can use your laptop for as many hours as you need. You can just buy the battery pack called testbank , charge it at home and take it with you, and use it as a portable power charger. This is good for short trips. You can charge your phone up to 8 to 15 times with a fully charged 20k tespack/battery bank.
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