Saturday - I made a few changes to the electrical system on the class C. I changed the absorption voltage from 14.6V to 14.4V on all three lithium chargers, the Multiplus, the Orion, and the solar. The battery manufacturers, SOK, really doesn’t provide much information to configure these devices so it’s left to the installer to come up with something based on their published battery specifications. Originally, I used the high voltage cut off by the BMS of 14.6V. This was a change that I had made on the class A a few weeks ago.
The other change was reconnecting all of the 12V loads in the RV back to the original AGM battery. This battery will be charged by the stock converter which is powered by 110VAC. Wherever that voltage happens to be coming from. Shore power, generator, or the Multiplus (from the lithium batteries). The change was accomplished by moving two cable. The one feeding the fuse panel and the two one from the converter.
My reason for the change is to eliminate the led lights flickering whenever the lithium batteries are fully charged. The BMS will disconnect the cells for a few milliseconds then reconnect. I just found the flickering kind of annoying. There is some inefficiency added due to the conversion from 12VDC to 110VAC then back to 12VDC. A benefit is that the AGM battery will be always charged. The AGM battery is used to start and run the generator. Having it charged is a good thing.
I also filled the built-in propane tank as well as the gas tank. Over $100 for half a tank of gas!
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