Remove a section of the insulation.
Pick a spot in the middle of the USB cable and use a sharp knife to cut through the outer insulation only. Make your cut about the same length as the PowerBoost PCB. Then peel back the insulation to expose the braided shield.
Separate the wires from the shield
Cut away the insulation and separate the shield wires to expose the wires inside. If there is a foil wrapper around the wires, remove it.
The Red and Black wires are the Power and Ground wires. The White and Green wires are the Data wires.
Cut and Strip the Power and Ground Wires
Cut the power and ground wires. Strip off about 1/4" of isulation from each side. Leave the white and green data wires intact.
Insulate the bare wires
Fold a piece of electrical tape over the bare shield wires. This will prevent any short circuits from the bare wires.
Secure with 'Zip' ties
Fold the insulated shield wires down on the back of the PowerBoost and secure the ends with 3" 'zip' ties and trim the ends.
Wrap it up!
For the prototype here, we soldered the battery leads directly to the BAT and GND pins. Then slid the whole thing into a piece of translucent 3/4" heat-shrink tubing for a nice compact in-line package.
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