Customer:
Does Soldered sell a charger for charging a lithium-ion battery via a solar panel in an Arduino project?
Originally submitted via email support on 21 November 2023. Migrated to the forum for community visibility.
Soldered Support:
The Li-Ion battery chargers should work for this application. You must ensure the solar panel voltage never exceeds 5.5V. If it does, you need to add a solar panel blocking diode and an electrolytic capacitor. This won’t be incredibly efficient but it will work.