We are considering upgrading to Lithium and here is what we think we know based on the settings recommended by the manufacturer... We would set the absorption volts to 14.4 and the max time to 1.5 hours (because starting volts would be 13.6 which would result in 1/6th of 1.5 or 15 min). Float would be 13.6.
Our question is this... if the volts on lithium are generally a constant 13.6 until almost charged or almost discharged, and the controller is on float volts of 13.6, how do we utilize the excess solar to run our electric fridge and other loads during the day? Won't they run off the battery and the solar won't add to the battery because the volts are constant? Hope this makes sense and someone can tell me where my gap in knowledge is!
Thanks!