Should I Change My WFCO Converter?
Opinions have often been expressed, both on this and other RV forums, that most stock RV converters are inadequate to properly charge and maintain batteries and are often of poor quality. It is frequ...
Forum Discussion
Hi
C stands for capacity. c/3 on a 90 amp-hour bank would be a charge rate of 30 amps.
At 85% of fully charged rate is about c/6 (16.6 amps per 100 amp-hours), under perfect 25 C (77 f) conditions.
Charging voltage needs to be reduced as the internal temperature of the battery rises. Charging causes an exothermic reaction in the battery. Conversely at -40 it may need to be nearly 17 volts. That means, at least for some RV products such as some fridge control boards (15.4 max voltage), that two battery banks would be best. One that is "in use" and one that is being charged.
C stands for capacity. c/3 on a 90 amp-hour bank would be a charge rate of 30 amps.
At 85% of fully charged rate is about c/6 (16.6 amps per 100 amp-hours), under perfect 25 C (77 f) conditions.
Charging voltage needs to be reduced as the internal temperature of the battery rises. Charging causes an exothermic reaction in the battery. Conversely at -40 it may need to be nearly 17 volts. That means, at least for some RV products such as some fridge control boards (15.4 max voltage), that two battery banks would be best. One that is "in use" and one that is being charged.
