Tonight I finished the three custom circuit boards that serve to consolidate the power from Anthrolume’s 12 lithium polymer batteries into two circuits. Eight of the batteries are arranged in series-parallel to deliver 7.4V with 10.6 amp-hours of capacity. That circuit powers the LED strand. The second circuit is also series-parallel delivering 7.4V with 2.6 amp-hours of capacity. The latter powers the Arduino Mega and its three peripheral boards (SD card reader, XBee radio, and Bluetooth radio).
Next is to create the wiring harnesses that go between the battery boxes, the power distribution box, and the Arduino box.