I have a 19.4v/2.37A power adapter. I have 5 LEDs (3.2v-3.4v 20mA) connected in series. When I measure the current, the reading says 0.08A, which is total of 4 LEDs, not 5, but close enough. Strangely, when I add another LED to the chain, the reading says 0.02A instead of 0.10A. All I'm trying to do is measure how much amps all 5/6 LEDs use together.
When I adjust the units, the decimal places do not change, regardless, if I set 10A or 2mA, it always says 0.08 or 0.02, is my multi-meter broken?