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Find a viable solar charge controller that can handle 4x18650s #solarpi
Charge the 4x18650 pack #solarpi
Find a better battery pack that can charge and supply power at the same time #solarpi
Wait for good 18650s to arrive #solarpi
Wait for the 4x18650 battery case to arrive to see if it's viable #solarpi
Discover the "good" 18650s were unprotected and as such a small explosion risk #solarpi
Wait for good 5v regulator to arrive #solarpi
Wait for the new charge controller to arrive #solarpi
Solder up supercapacitor USB lead #solarpi
Solder up a 5v regulator to the solar cell and USB micro output #solarpi
Wait for: 5v regulators to arrive #solarpi
Wait for supercapacitors to arrive #solarpi
Put the whole thing together and see if it explodes #solarpi
Install supercapacitors #solarpi
Charge it from the sun with no load, see if that fixes it #solarpi
Burn your finger on a soldering iron and ruin several 5v regulator boards #solarpi
Discover that the existing power supply sometimes shuts off output and doesn't turn it back on #solarpi
flooded with backlog content, need to be faster & need more money for ecoflow portable charger with solar power 
#fajarsiddiq