![]() ![]() The differences with Li-ion relate to the higher voltage per cell, tighter voltage tolerances, and the absence of trickle or float charge at full charge. A lithium battery at 20% capacity will hold voltage around 13V lead-acid will be around 11.8v at the same capacity.Ī Lithium LiFePO4 charger is a voltage-limiting device that has similarities to the lead-acid system. A lead-acid battery will be around 12.6-12.7v. While the PEC may safely "charge" Lithium batteries (somewhat), as stated on WFCO's website, the PEC is not designed for Lithium Charging and by Forest River's own engineer's statements, does present quite a few shortcomings for Lithium use.Ī 12v lithium LiFePO4 battery fully charged to 100% will hold voltage around 13.3-13.4v. The PEC is designed and sold as a Lead-Acid Charger, and by that definition alone, disqualifies the PEC as a Lithium Ready Charger and disqualifies the IBEX 23RLDS as a Lithium Ready Travel Trailer. ![]() Many specifically state that a "Lithium Charger must be used." Lithium Battery warranties don't cover improper charging.The Lead-Acid algorithm does not have a Fast Charge state. The PEC will not output the required 14.6v for "Fast Bulk" charging of Lithium.The PEC is not going to properly Float the battery (as stated, "it's close").The PEC will not fully charge Lithium batteries he stated "95% or so." We all know that a Lead-Acid algorithm will only get the LiPo to 70-80% in most cases.The short version (confirmed by Forest River's Engineer): The WF-8955LiS has a switch option, allowing one to change charging modes between lead-acid and lithium batteries by simply sliding a switch in one direction or the other. ![]() The WF-8955LiS is the model that was supposed to be installed for the IBEX to be "Lithium Ready." The WF-8955PEC's charging system is designed explicitly for lead-acid (Flooded/AGM) batteries. The Power Distribution Center in my IBEX was a WF-8955PEC and is NOT Lithium Battery Compatible. WFCO WF-8955PEC-B-LIS Power Center with Lithium-Ion Switch ![]()
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