Battery voltage drops!!!
I have a 2015 Jayco Pinnacle with a residential fridge. When I am plugged in to shore power and have fully charged batteries (two of the biggest Trojan 6 volts that I could fit in the battery cases) m...
Forum Discussion
I don't think it is a problem with the alternator as much as the wiring from the truck to the rig not being heavy enough to handle the current demand. The voltage drop from the truck fuse block to the RV battery is probably enough to require the RV battery to make up the difference.
Typically I can only get about 15 amps of charge current from my truck to my RV when the RV battery is low. If I use the Progressive Dynamics PD9260 converter on the same battery I get 40-45 amp charge.
The solution is to run a heavy cable from the alternator to a high current connector at the back of the truck and a mating connector and cable to the RV battery ( With an appropriate fuse at both the alternator and RV battery for short circuit protection). I have not done this yet but I plan to before I begin full timing in a few years.
Pat
Typically I can only get about 15 amps of charge current from my truck to my RV when the RV battery is low. If I use the Progressive Dynamics PD9260 converter on the same battery I get 40-45 amp charge.
The solution is to run a heavy cable from the alternator to a high current connector at the back of the truck and a mating connector and cable to the RV battery ( With an appropriate fuse at both the alternator and RV battery for short circuit protection). I have not done this yet but I plan to before I begin full timing in a few years.
Pat
