Parallax Converter
Hi - we have a new(er) RV with a Parallax converter - series 7300. Can I leave this plugged in (charging the battery) 24/7? In our trailer we had a WFCO converter and I replaced it with a Progress...
Forum Discussion
We're hit-and-run campers ... even on our long 8-10 week trips. This means that our AGM batteries are hit with 14.XX alternator voltages for several hours when driving between destinations - so they are often getting their high voltage fix if this is in fact even needed for certain AGM batteries. Read the C&D Technologies white paper I gave the link to above to understand why certain AGM (VRLA) batteries may be just fine charged long enough with only 13.6-13.8 fixed voltages - assuming that they are in fact being brought up to full charge enough times during their lifetimes.
However regardless of what any experts say, my RV's AGM batteries (both brands I've owned over the past 11 years) WILL NOT accept any more charging current from a cold (therefore 14.XX volts) alternator once I've left them long enough on only the ~13.6 volts RV converter until the ammeter reads zero. For my situation by picking just the right AGM batteries for our RV I saved myself from having to also buy another charger/converter for the RV.
I guess this will have to remain an AGM mystery to us all.
P.S. IMHO, the optimum RV charger model series for certain AGM batteries (batteries with a 13.5-13.8 volt float spec and a 14.XX volt cycle-service spec) - would be this one from Parallax Power Supply LLC:
https://bestconverter.3dcartstores.com/assets/images/Parallax/4400/ParaMode%20TempAssure%20lit.pdf
However regardless of what any experts say, my RV's AGM batteries (both brands I've owned over the past 11 years) WILL NOT accept any more charging current from a cold (therefore 14.XX volts) alternator once I've left them long enough on only the ~13.6 volts RV converter until the ammeter reads zero. For my situation by picking just the right AGM batteries for our RV I saved myself from having to also buy another charger/converter for the RV.
I guess this will have to remain an AGM mystery to us all.
P.S. IMHO, the optimum RV charger model series for certain AGM batteries (batteries with a 13.5-13.8 volt float spec and a 14.XX volt cycle-service spec) - would be this one from Parallax Power Supply LLC:
https://bestconverter.3dcartstores.com/assets/images/Parallax/4400/ParaMode%20TempAssure%20lit.pdf
