In this video, I do a quick repair to a brand new model HT206D amp meter from a company called Kaiweets. The dead-on-arrival unit was sent to me by one of my viewers. They had sent him a free replacement and didn’t want that old one back. So he asked me if I would like it. I said sure I’d take a shot at fixing it.
The meter uses internal spring connections for power from the batteries. I believe they weren’t making proper contact leading to a no-power situation. I decided the easiest thing to do was remove the springs and solder my own set of connecting wires. After that, the unit worked perfectly.