I am stepping through upgrades on my 2016 Pleasureway Lexor TS class B and have come to the solar charging system.
The RV came with two 100 Ah LiFePO4 batteries, three 95 watt roof panels and a GoPower 30 Amp PWM SCC without a LFP charging profile. The manufacturer says to use the AGM profile, which sets bulk/absorption at 14.4V and float at 13.7V (no equalization). That SCC also has a GEL setting that sets bulk/absorption at 14.1V and float at 13.7V. Eventually, I want to upgrade to an MPPT controller, but for various reasons that might take a while. In the meantime, should I continuing using the original SCC with the recommended settings (14.4V/13.7V) or purchase an inexpensive PWM SCC that has a Lithium profile (thinking 14.2V with no float)? I realize that float is not necessary, but is there a negative impact of using a float voltage of 13.7 and is 14.4V too high for bulk/absorption?
The RV came with two 100 Ah LiFePO4 batteries, three 95 watt roof panels and a GoPower 30 Amp PWM SCC without a LFP charging profile. The manufacturer says to use the AGM profile, which sets bulk/absorption at 14.4V and float at 13.7V (no equalization). That SCC also has a GEL setting that sets bulk/absorption at 14.1V and float at 13.7V. Eventually, I want to upgrade to an MPPT controller, but for various reasons that might take a while. In the meantime, should I continuing using the original SCC with the recommended settings (14.4V/13.7V) or purchase an inexpensive PWM SCC that has a Lithium profile (thinking 14.2V with no float)? I realize that float is not necessary, but is there a negative impact of using a float voltage of 13.7 and is 14.4V too high for bulk/absorption?