I know the title says 8-20V but the description says 6-20V so I gave it a whirl. I have a 7.5V battery and it did not work. I hooked it up to a 9V power source and it works. Stick to the 8V minimum not 6V. I have no real review as it is of no use to me.

Bought one of these for an automotive project as a convenient way to power a microcontroller. At first it worked as expected, while I was still feeling things out on a breadboard, but then it suddenly stopped working. First thing I noticed was the over current light on my benchtop power supply. Then the converter was unpleasantly hot to the touch. Probing with a multimeter, the 5V side is dead shorted, tenths of an Ohm across the leads. I probably shorted it by accident, so I'll give it the benefit of the doubt that it didn't just quit for no reason. However, the datasheet claims "Short circuit, Over load, Over temperature protections" so I would have hoped it might recover after it cooled down. No such luck.