How to charge your usb device like a smartphone using your laptop's battery even if its off

A quick tutorial explaining how you can charge your usb device such as a smartphone using your laptop, even if your laptop is powered off and or not plugged into the wall. Depending on the laptop, you may need to enable this feature in your BIOS. If you have the lighting bolt symbol next to the USB symbol and you plug a device into it while the laptop is off and it does not work, you need to boot into your BIOS settings and adjust the USB powering sharing (though it may be called differently depending on laptop). As with any BIOS settings, use at your own risk!

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