cewillis wrote:
Wouldn't the efficiency loss be realized only in fuel economy which should be inconsequential?
I'd agree with the first part -- the engine is the energy source in both charge methods. Don't know about inconsequential - but probably. You - as in not me - have to know all the factors and do the calculation.
Heavy duty 12v is cheap, easy, extremely well tested, and known to work.
I am still left with needing a solution to charge my lithium battery. Right now the 7 pin 12v power circuit is disconnected. I don't want dissimilar battery types and voltages balancing themselves against each other and I definitely don't want the alternator charging the battery without strict regulation.
On our old camper with it's wet cell batteries I would definitely go with a system like yours. Reasonable cheap, reliable and simple.
