Today I built the two battery boxes for anthrolume, along with the power boards that consolidate the power within the boxes to four wires. Each box holds three batteries. Of the four outputs, two wires are ground, one wire is the positive of the two big batteries in parallel, and the last is the positive of the single smaller battery. The two boxes are mirror images of each other, to be placed on my belt one on each side of the Arduino box, providing even weight distribution. The power from these two boxes will be again consolidated inside the Arduino box to essentially stack the four big batteries into a 4V, 10800mAh power source, and putting the two smaller batteries in series for 7.6V, 1300mAh. The big stack powers the I2C buss with all the LEDs, and the other series batteries run the Arduino, display, etc.