I just purchased a EzOSD and it was a snap to get it up and running however I'm having an issue with the current sensor using a 4s Lipo (16.8v).
I measure the input voltage to the current sensor at 16.8v and if I dont connect anything to the ESC (output) the OSD shows 16.8v. If I measure the voltage with nothing else connected to the output it reads 16.8v
As soon as I connect my hexacopters main power to the ESC (output) of the current sensor the voltage drops to 13 - 14v, the battery side still stays at 16.8v. The OSD shows an amp draw of 0.6 and a voltage of 13 - 14v. Why is the voltage being dropped with such little load?
I seems like the slightest bit of load will drop the voltage down. As a test I just connected (1) 30amp ESC (a spare not even connected to a rx or motor) and the voltage dropped to 15.6v while the battery was still 16.8v.
Any ideas? Would this be a bad current sensor? I purchased it from Hobbywireless last week.
 Just tried a 3s Lipo and I'm seeing the same results.