Every Grid Charger we sell undergoes at least
three quality control checks. Regardless of which of our assemblers puts the charger together, I personally inspect and perform a final test on every single one before it ships.
Here is a photo of one of our new SC3.0 units undergoing the first of many QC checks. In this test, we set the unloaded voltage and fan speed, as well as verify all wiring is done properly: