I made another one today....LOL... Pulled 70 amps for an hour to see extreme results off the 3 12 volt batts
This was with toaster over..
What I found.
1. Voltage held well I thought.. I have nothing to compare it with though. I never did this type of test before. I am not sure what I even proved.
2. One batt may be weaker then the other. But this may be a symptom of the large amp pull and that batteries amps got pulled down more then the other. Wiring issue? Or a batt going bad?
3. Truck batt seams worthless. During this amp draw the truck batt was still up there on charge. Strange that I can charge through 7 pin at 16 amps but it will not pull amps from truck equal to RV batts. I know though if I let the batts rest long enough the truck batt will charge the RV batts back up.. My assumption since the truck batt was at a higher voltage after test.
The extra truck batt my belief is for a TC because of 8 ft bed, or was there for emergency roof lights. In construction you can leave truck at construction site with roof lights on and not kill start battery.
4. I should of checked temp of batts . But cant remember everything. Probably not good pulling constant 70 amps from batts..
5. I am assuming the Acid in battery has to catch up to an accurate SOC? Volts and SOC didnt jive in the end... Who do I believe?
5. My last rule of thumb is if the inverter alarm goes off I must recharge. Geez Im beating the hell out of my batts...LOLOL
6. I wish I knew what the 6 volt guys were /are getting for comparison.
I need to make shorter videos I know.. Well I did my best here and as I said I learned a bit of things doing it.
Enjoy...
https://www.youtube.com/watch?v=7p-oNT8YDIs
