power bank solar charger (in progress)

solar charger: https://www.homemade-circuits.com/how-to-make-solar-battery-charger/ battery charger: https://www.homemade-circuits.com/simplest-safest-li-ion-battery-charger/ solar power bank: https://theorycircuit.com/solar-power-bank-circuit/ LM317 datasheet: https://www.ti.com/lit/ds/symlink/lm317.pdf?ts=1621784138256&ref_url=https%253A%252F%252Fwww.google.com%252F Alternative: TP4056 https://dlnmh9ip6v2uc.cloudfront.net/datasheets/Prototyping/TP4056.pdf