Salvo wrote:
The IQ4 is the circuit that triggers the Iota out of boost. I had a defective IQ4 on my original Iota. It provided only 15 min of boost.
But 20 mohm cable resistance + Iota, will get you a slow charge. Forget about Iota unless you got 5 to 10 mohm cable resistance.
Sal
KendallP wrote:
The word I got was the IQ4 eventually gave out, but was clearly working at the time of the test.
Yeah, with a 0.93 voltage drop, you can see from the chart that the IOTA would have reached 14.6 in about the first minute. So I suppose it's possible that the IQ4 could have been defective already, but the evidence seems to suggest that it was functioning properly at the time of the test.
Also, my understanding was that the subject IQ4 went south only about a year ago or so; much later than the aforementioned test.
Now...
Isn't it also the IQ4 that pushes the unit to 14.6V? Without it, even using the manual switch, would it not be limited to 14.2?
http://www.iotaengineering.com/dls55.htmTo me this is more evidence that the IQ4 was functioning properly at the time of the test. Would you agree?