Keeping two batteries happy (separated)
Please excuse this long post, but I thought a more comprehensive discussion of this topic might be of interest. As is common with many RV's, I have two batteries in my RV, one for starting the veh...
Forum Discussion
MEXICOWANDERER wrote:
Thank you for checking.
The Bi-directional feature is crucial for me.
You are welcome, although, as I said, I might have been wrong.
For you 1)automatic operation and 2) bidirectional and 3) low voltage drop are important, so you go with the smart solenoid based design. For those who want only 2) and 3), like me, a manually operated solenoid design is best (I also like having control, instead of having the circuit make decisions for me, but I realize it means I have to do more and will occasionally make a mistake). For those who will live with unidirectional, but want 1) and 3), the FET design will work well. There are lots of options out there, and in the end it seems we still have to decide what's important to us. That said, if I was asked by a new RV purchaser what I thought was the best, I'd probably suggest the solution you like - bidirectional and smart with no voltage drop.
