Small USB Solar Chargers

Tp4056 charger with mini solar panels results here PIC Data Logger + TP4056 + Mini Solar Panel *3W results in

The TP4056 module had no problems restarting after cloud passing over pv panels. The termination of CV mode can be kind of excruciating depending on the circumstances and charge current chosen.

Hooked up a Lito-Kala 100 to the TP4056 + 3W solar setup and could not seem to kickoff the charging mode. Did not troubleshoot at the time. Could be an undervoltage lockout condition? as there just would not much overhead with the 6V mini panels.