Charging Issues in Electrical Posted November 11, 2015 · Report reply I have the WFCO (WF-9855) 55 Amp Deck Mount Converter and replaced it with the same. It is a 3-stage charger which provides 13.2 VDC range “float” mode, 13.6 VDC range “absorption” mode, and a 14.4 VDC range “bulk” charge mode.I checked the voltage in both locations. I checked the voltage at the converter (13.23 - so looks like that is in float mode), I get 13.2 at the battery cable end. Individually the batteries are reading 13.18 and 13.19, which is consistent with the readings on the dash volt-meter. It may be working and I'm just a little over-sensitive at the moment, but I don't recall the number ever sitting that low.