PD or Iota for my upgrade?
I'm thinking about a converter and battery upgrade. The batteries will be wet cell lead acid 6 volt Possible T-105s or the 230AH, EGC2 from Sam's club. I'll probably go for four. (Does nayone have...
Forum Discussion
If I had the resources (which I don't) this is what I'd consider a minimal test for a high confidence comparison of a PD converter against another converter:
1. Use 2 separate batteries of same make, model, age, condition.
2. Run tests side-by-side, and concurrently.
3. Use verified 120 volt shore power (otherwise not worth testing PD)
4. Assure both batteries are as fully charged as practical.
5. Discharge both batteries at the same time using identical loads.
6. Charge both batteries at the same time with the two converters, recording the DC data.
7. Swap the battery-converter combinations and re-run the test.
If the data is consistent between the two test runs, I'd accept it as valid. If the PD converter can't maintain its boost mode voltage, it's defective or there's some sort of converter-battery interaction that I don't understand. If the PD converter maintains the voltage and the current tapers more than with the other converter, there's something happening that I don't understand even more.
Running the tests concurrently at the same location minimizes a lot of variables that can make the results questionable. The converter behaving differently with a battery vs. a resistive load is IMO so bizarre that it demands squeaky-clean data. Doesn't mean it's not possible, it just begs a high level of proof to be believable.
1. Use 2 separate batteries of same make, model, age, condition.
2. Run tests side-by-side, and concurrently.
3. Use verified 120 volt shore power (otherwise not worth testing PD)
4. Assure both batteries are as fully charged as practical.
5. Discharge both batteries at the same time using identical loads.
6. Charge both batteries at the same time with the two converters, recording the DC data.
7. Swap the battery-converter combinations and re-run the test.
If the data is consistent between the two test runs, I'd accept it as valid. If the PD converter can't maintain its boost mode voltage, it's defective or there's some sort of converter-battery interaction that I don't understand. If the PD converter maintains the voltage and the current tapers more than with the other converter, there's something happening that I don't understand even more.
Running the tests concurrently at the same location minimizes a lot of variables that can make the results questionable. The converter behaving differently with a battery vs. a resistive load is IMO so bizarre that it demands squeaky-clean data. Doesn't mean it's not possible, it just begs a high level of proof to be believable.
