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Charge it and try starting it up again to see if it was just a loose wire #solarpi
Work out why it's still randomly turning off and not back on #solarpi
Discover that the existing power supply sometimes shuts off output and doesn't turn it back on #solarpi
Turn it off and on again, because that fixes literally everything (worked this time anyway). #solarpi
Charge it from the sun with no load, see if that fixes it #solarpi
It seems to be working?! #solarpi
Work out why this thing isn't booting #solarpi
Bang head against mystery problem #solarpi
Looks like a supercapacitor and no battery did the trick (during the day at least) #solarpi
Put the whole thing together and see if it explodes #solarpi
Try running it without the battery pack, just solar + ultracapacitors #solarpi
Wait for good 5v regulator to arrive #solarpi
Duct tape enough insulation to run the solar system outside for a while #solarpi
Wait for the new charge controller to arrive #solarpi
Wait for: 5v regulators to arrive #solarpi
Burn your finger on a soldering iron and ruin several 5v regulator boards #solarpi
Do test run of solar system #solarpi
Write about solar pi 
#dumb
Find a better battery pack that can charge and supply power at the same time #solarpi
Charge the 4x18650 pack #solarpi