Battery charging issue resolved, perhaps
1999 Coachmen Santara 23rb (Class C) I few days ago I posted a question about my battery seeming not to charge when camped with shore power. I've been nosing around this, and I think I found the...
Forum Discussion
I would not want to see any charging voltages for the batteries other than the normal smart mode charger output levels being 14.4VDC-13.6VDC-13.2VDC. Some chargers will produce something in the 15VDC level but only for a few minutes at a time to perform a battery "desulfate" mode. My PD9200 series Converter will do this mode every 21 hours for 15 minutes using 14.4VDC.
Even 13.6VDC will boil battery fluids if left connected for long periods of time...
Measuring my truck alternator DC outputs follow these same DC levels. When I first start up it usually reads 14.2VDC and drops back to around 13.2VDC after a short period of time. This is the DC level I read the most when measuring across the battery with the truck motor running. I like to read 12.6VDC or across the truck battery terminals with the motor turned off...
Any other DC voltages measured when plugged into shore power or running from the generator is most likely due to malfunction of the converter or bad connections associated with battery cables or switch/relay operations.
Just some of my thoughts here
Roy Ken
Even 13.6VDC will boil battery fluids if left connected for long periods of time...
Measuring my truck alternator DC outputs follow these same DC levels. When I first start up it usually reads 14.2VDC and drops back to around 13.2VDC after a short period of time. This is the DC level I read the most when measuring across the battery with the truck motor running. I like to read 12.6VDC or across the truck battery terminals with the motor turned off...
Any other DC voltages measured when plugged into shore power or running from the generator is most likely due to malfunction of the converter or bad connections associated with battery cables or switch/relay operations.
Just some of my thoughts here
Roy Ken
