Engine charging of coach batteries
I have a general question about how the (Class A) coach batteries are charged from the engine alternator while the engine is running. I am not at all sure that they even are so charged, as I cannot...
Forum Discussion
Paul,
While it is correct that there is no "typical". This is simply because most every class A ever built was built by a chassis builder and a coach builder. They each get to do what they want with what they have.
Most coaches do charge the house bank from the main engine and there are three very different ways. The most common is the isolator contactor. A big relay that closes once the main engine starts and connects the two batteries together. After that, your available charge rate is a complete **** shoot. It is largely dependent on two things. Those are the maximum capacity of the OE alternator and the vehicle wiring.
Sorry, but nobody other than the coach builder can give you a better answer.
Matt
While it is correct that there is no "typical". This is simply because most every class A ever built was built by a chassis builder and a coach builder. They each get to do what they want with what they have.
Most coaches do charge the house bank from the main engine and there are three very different ways. The most common is the isolator contactor. A big relay that closes once the main engine starts and connects the two batteries together. After that, your available charge rate is a complete **** shoot. It is largely dependent on two things. Those are the maximum capacity of the OE alternator and the vehicle wiring.
Sorry, but nobody other than the coach builder can give you a better answer.
Matt
