Harry B
Well-known member
I am experiencing what seems like overcharging of my house batteries by the alternator.
Has anybody figured out or tried a way to regulate the charging of the house batteries and chassis batteries independantly being they have such different characteristics for charging. Usually when my house batteries are a ways down I will try to bulk charge via the inverter before we get underway.
Both the house batteries and chassis batteries were replaced at the same time last year. (2x 12v sealed starting batteries and 4x 6v wet cell house batteries). I am not having any problems with the chassis batteries.
Last year I discovered that my house batteries were not being charged by the alternator due to a bad contactor, which has been a common problem on the Winnebago diesels. I replaced the contactor last September after having driven 3600 miles with the alternator charging only the chassis batteries. I drove another 4500 miles with it fixed and my house batteries had excessive acid discharge again. I had absolutely no acid boilover when the contactor was defective and the alternator was not able to charge the house batteries. Typical battery voltage supplied by the alternator when charging is about 13.8v, which seems normal.
Has anybody figured out or tried a way to regulate the charging of the house batteries and chassis batteries independantly being they have such different characteristics for charging. Usually when my house batteries are a ways down I will try to bulk charge via the inverter before we get underway.
Both the house batteries and chassis batteries were replaced at the same time last year. (2x 12v sealed starting batteries and 4x 6v wet cell house batteries). I am not having any problems with the chassis batteries.
Last year I discovered that my house batteries were not being charged by the alternator due to a bad contactor, which has been a common problem on the Winnebago diesels. I replaced the contactor last September after having driven 3600 miles with the alternator charging only the chassis batteries. I drove another 4500 miles with it fixed and my house batteries had excessive acid discharge again. I had absolutely no acid boilover when the contactor was defective and the alternator was not able to charge the house batteries. Typical battery voltage supplied by the alternator when charging is about 13.8v, which seems normal.