cougsfan
Member
I have a 2011 Winnebago View (class B+ Sprinter based). We have been on a road trip for the last two weeks. A few days ago the house batteries were dead when we arrived at our campsite (12.0V) Not enough juice to start the generator. I plugged into AC and it charged them fine to 13+ volts. The next morning they were fine, and as we drove for the day they went dead again. Recharged them again. The next day they stayed charged (?). Then today they started going dead again. I figured the batteries, although only 1-1/2 years old, must be bad, so stopped and I replaced them today. (yes they are hooked up correctly). After I put the new batteries in they were setting at 12.6 V with the motor not running. When i started the Motorhome's motor, they immediately went down to 12.3V. We drove for 50 miles. The house batteries were at 12.0 V. When I shut the motor down they climbed slowly back to 12.2 volts on their own. So it appears that the new and old batteries are probably both good, but the motor home engine is supposed to charge the house batteries while you drive. It pulls them down instead at times. This is all recent. No heavy loads are running (Refridge is about all) while we are driving. The chassis battery has maintained a good charge all the while. Any ideas on what to look for? We will be on the road three more weeks!