Posing this question to validate my findings and assumptions - below is a screen shot of the battery condition (206Ah SOK) 9 hours after disconnecting from shore power. About 7 of the 9 hours there was a charge coming from the 7pin wire connected to my '01 Chev PU.
NO solar (that has been shut off until I have the time to test the new connections to the SOK,) and the 12V Furrion refrigerator/freezer stayed at about 37/6 degrees the entire trip. Outside temps were about 90 degrees, and mostly full sun during the entire drive.
Unless my settings on the BMV 712 are all wrong (that's entirely possible - I have no idea what I'm doing!) it looks to me like a full day of driving doesn't significantly deplete the battery. Assuming this is correct, and I haven't even added in solar charging yet, I'm thinking there's no reason to worry about a DC-DC charger.
EDITED - now I'm wondering if my BMV settings are correct. How can the battery be at 97% (in the first photo - taken 2 hours prior to the second photo) but register a higher Voltage at 13.28 than the reading at 99% SOC and 13.20 Voltage? Isn't the Voltage a measurement of the state of charge?
NO solar (that has been shut off until I have the time to test the new connections to the SOK,) and the 12V Furrion refrigerator/freezer stayed at about 37/6 degrees the entire trip. Outside temps were about 90 degrees, and mostly full sun during the entire drive.
Unless my settings on the BMV 712 are all wrong (that's entirely possible - I have no idea what I'm doing!) it looks to me like a full day of driving doesn't significantly deplete the battery. Assuming this is correct, and I haven't even added in solar charging yet, I'm thinking there's no reason to worry about a DC-DC charger.
EDITED - now I'm wondering if my BMV settings are correct. How can the battery be at 97% (in the first photo - taken 2 hours prior to the second photo) but register a higher Voltage at 13.28 than the reading at 99% SOC and 13.20 Voltage? Isn't the Voltage a measurement of the state of charge?
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