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-   Do It Yourself, Boating on a Budget (https://www.offshoreonly.com/forums/do-yourself-boating-budget-249/)
-   -   Favorite alternator? (https://www.offshoreonly.com/forums/do-yourself-boating-budget/357132-favorite-alternator.html)

Baja Rooster 10-11-2018 06:57 PM
Favorite alternator?
 
My DB Electrical unit that’s one season old with about twenty hours on it crapped out nearly melted down the boat.

‘97 Mag MPI setup with the hot, ground, and small gauge wire. Two house batteries and another for starting. What’s the best setup here?

OSO FTW!

RSCHAP1 10-12-2018 01:01 PM
Within the one year warranty time?
I see that is what they advertise for most of their stuff.

BUP 10-12-2018 02:11 PM
One heck of a way to the knock the ecm out. I know cause I have 2 ecms in now to repair for the same exact failure. One app had a DB elecltric alternator that Voltage was too high and the other OEM alternator went bad as well. That one was over 15 years old but the DB alternator was almost 2 years old only..

I have API alternators and starters -- Let me know if any interest.

AllDodge 10-12-2018 02:31 PM
Two house batteries and another for starting. What’s the best setup here?
Not real sure if your asking one or more then one question.

Don't have a favorite ALT, have used Merc because they came with the motor. One time tried a one wire (100 amp), it worked fine, but removed because I just didn't need that much. Its been sitting on the shelf for some years now.

If your also asking about what to use to hook up ALT, and 2 banks of bats, that's easy enough, but just want to understand the question(s) first

Baja Rooster 10-12-2018 03:03 PM
Originally Posted by AllDodge (Post 4653930)
Not real sure if your asking one or more then one question.

Don't have a favorite ALT, have used Merc because they came with the motor. One time tried a one wire (100 amp), it worked fine, but removed because I just didn't need that much. Its been sitting on the shelf for some years now.

If your also asking about what to use to hook up ALT, and 2 banks of bats, that's easy enough, but just want to understand the question(s) first
Just looking for enough juice to charge all three batteries.

Originally Posted by BUP (Post 4653926)
One heck of a way to the knock the ecm out. I know cause I have 2 ecms in now to repair for the same exact failure. One app had a DB elecltric alternator that Voltage was too high and the other OEM alternator went bad as well. That one was over 15 years old but the DB alternator was almost 2 years old only..

I have API alternators and starters -- Let me know if any interest.
PM sent

Griff 10-13-2018 01:13 AM
Originally Posted by Baja Rooster (Post 4653932)
Just looking for enough juice to charge all three batteries.
Are you trying to charge all 3 at once??? That will put quite a load on an alternator.

AllDodge 10-13-2018 08:05 AM
My Formula came with Start, House and Generator bats and the standard Merc ALT keeps them all changed

Tahoe540 10-13-2018 08:12 AM
They make a voltage sensitive relay that will charge different banks of batteries. https://cimg8.ibsrv.net/gimg/www.off...4bba141302.jpg

Craney 10-13-2018 09:35 AM
I had a starter from DB junk DB = don’t bother

Tractionless 10-25-2018 03:57 PM
What about Arco Alts.?

Not trying to take food out of anyone's mouth but would like to know experiences.

Keith


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