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I have a small toy electromagnetic levitation device that I need to power externally instead of being plugged into a wall. The device uses an AC/DC adapter with a barrel jack connection that outputs 5V at 1A. What can I replace this with to power it without an outlet? I have an Anker USB battery pack. Will that work somehow with a certain cable? I don't know much about this topic. Any help is appreciated. Thanks.

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Cut a usb cable and use the 5 volt wires, believe they are black and red. Just use a meter to find the 5 volts.

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  • \$\begingroup\$ Crude but effective. \$\endgroup\$ – mkeith Apr 19 '18 at 4:07

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