I am trying to use this regulator module (LM2596) to regulate my car's 12V power (constant from fuse port), and use the LM2596 output set to 5.2V to charge my phone (LG G6) but get the slow charging warning (6hs xx mins to full).
I presume the output Amperage can meet whats specified ~2-3A, but obviously something is wrong. I gutted a USB extension cable to solder to the output of the regulator.
What Am I missing? Is this module capable of doing what I want?