Yes the 12.4 to 13+ is nominal while unit sitting I may not see actual charge rate. I got a little over 5 years total life on battery. So based on life of my SUV and Altima batteries I will likely replace arbitrarily every 4 years. Overall performance leads me to think existing converter is adequate.
Is rare when I actually depend on chassis batteries. Sometimes overnight in cool weather they run heat overnight. I do not use onboard generator much as we are either plugged in or running chalpion RV ready generator on trailer. At this point it likely has 10 times the 417 hours on Onan. We just came back from 4 day race where I would fill up, check oil and use continuosly. 3.5 gal gets me 9 to 16 hours of run time.
__________________
|