Upgrading to Lithium with Solar...
Fellow RVers, My first post here, so please excuse any ignorance on my part. I have a 2012 R-Vision Crossover, 19' travel trailer. I have been using a 160w roof-top solar panel to charge two 12...
Forum Discussion
So I have 520 watts of solar feeding two 6 volt 240 amp hour batteries which gives me 120 amp hours of usable juice. I run my furnace on a low t-stat setting all night and normally my batteries are around 65%-70% when I get up in the morning. Assuming it's 70% then I'm using 72 amp hours for the furnace overnight leaving me with 48 amp hours to spare before I get to the 50% discharged level which is considered dead. So using that as a baseline if you have 100 amps of lithium that you can take down to as low as 20% this would cause you to have about 24 amp hours remaining in the morning until the sun starts hitting your solar panels or the batteries get below recommended discharge level.
My opinion, what you want to do can be done but there's risk. At the cost of lithium batteries you certainly don't want to take them too low.
Plus another consideration is that lithium batteries cannot be charged even once when temps are below 32 degrees F. Many are recommending no lower than 41 degrees when charging. I camp to much in cold climates to even think about lithium batteries.
My opinion, what you want to do can be done but there's risk. At the cost of lithium batteries you certainly don't want to take them too low.
Plus another consideration is that lithium batteries cannot be charged even once when temps are below 32 degrees F. Many are recommending no lower than 41 degrees when charging. I camp to much in cold climates to even think about lithium batteries.
