DryCamper11 wrote:
...and if I can convince my wife to skip the weekly camping trip in the RV, I'll see if I can get some baseline numbers on my PD to see if they look at all like those charts.
While I am in full support of measurebating ad nauseum... I CANNOT support skipping ANY kind of camping for said. Wait 'til next week.
I can tell you that Sal is correct about the subject at hand. I've seen more than enough graphs by many, fine engineers on these boards over the years to verify his position. And trust me, there are few on these boards that have argued with Sal about the PD with more fervor than I. But on this discussion, I have never disagreed.
After many months of back and forth, I have come to the following conclusion: Given enough resistance, the PD can beat the IOTA to the 90% mark. Properly sized with adequate cabling, the IOTA will likely beat the PD.
With high resistance, especially when the IOTA is oversized for the bank, the PD is the tortoise. The IOTA will quickly reach its trigger voltage and drop out of boost. Then it's a bit of a long road in absorption.
Meanwhile the PD essentially remains in boost and doesn't really drop into absorption until 90%+.
For techies that prefer manual control, the PD wins.
For anyone who would rather set it and forget it, the IOTA is great!
For solar guys, a properly sized IOTA with adequate cabling can give you a better morning boost before you let the PV take over.
Still... I look forward to your test results.