Solar MPPT and lithium batteries
I switched my AGM batteries to lithium's. I can't get a definitive answer on MPPT charge parameters, except to "user define" which I have done. My question is: since MPPT chargers rely on voltage drop...
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My Victron 100/50 with parameters set for lithium also starts each morning in the bulk mode, charges until the charging voltage hits around 14.3V, switches to absorption and brings them up to 14.5V while balancing the battery cells. After absorption, it switches to float at 13.6V. Throughout a typical night, using 30 - 40 amp hours, the battery bank typically drops to 12.8V by morning. Bank is 3 100 amp hour Battleborns.
