Hej.
I have the following situation on my boat:
- starter battery connected to alternator
- aux battery
- bow battery
I want to achieve the following:
- charge all when on AC shore - this is done, I have 3 output ac charger with each seperate line going into them (existing sbc 500 adv fr)
- charge all from alternator
Right now, I have an emergency connect that connects in parallel starter and aux, and also use this for charging. But this is not a proper 3 phase charger, and I have a feeling it can mess with aux batteries. The bow does not get charged from alternator (but in emergency I can connect in parallel in same way).
- solar
Now I also want to add solar, to charge aux and bow (starter battery is fine w/o solar). Is there a good way to do this with 1 MPPT?
Any ideas/suggestions? I want systems to be independent, not for these sets to discharge between themselves. They do share common NEG right now (but this can be changed).
I was looking through different schematics and posts here (and elsewhere).
One proposal/idea is:
- for alternator
Add Orion to receive alternator input, and connect that one through argofet to both aux and bow (starter gets charged directly from alternator bypassing Orion).
- solar
Add one mppt, which is also connected to same argofet as above.
Is this ok? Basically I do not want to have any of packs in parallel, so want to isolate charging like this if possible.
Thx
