5V Portable Power Supply Kit
Super handy portable 5V power supply that works off a 9V battery. Use this to light up your USB-powered development board or any other USB device for that matter. It even has biasing resistors that you can use to set D- and D+ bias voltages so you can do an emergency charge of your phone. Efficient switching power supply maximizes the life of the battery. Capable of delivering nearly 1A of current with minimal voltage ripple. Quite easy to assemble and great for improving your SMT soldering skills.
Also available as a finished unit.
Battery, USB cable, phone, and dev board shown in pictures not included.
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