I just bought a really nice backpack and it has a USB charger to plug in my phone. How do I use it though? - Quora
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Amazon.com: Business Travel Laptop Backpack, Anti Theft Slim Laptop Bag with USB Charging Port for Men and Women, Water Resistant Computer Bag Fits 15.6 Inch Laptop and Notebook (Black) : Electronics
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Amazon.com: MATEIN Travel Laptop Backpack, Business Anti Theft Slim Durable Laptop Backpack with USB Charging Port, Water Resistant College Bag Computer Bag Gifts for Men & Women Fits 15.6 Inch Notebook, Grey :
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