Notices

Favorite alternator?

Thread Tools
 
Old 10-11-2018 | 06:57 PM
  #1  
Thread Starter
Registered
10 Year Member
 
Joined: Oct 2013
Posts: 2,888
Likes: 148
From: SF Bay Area
Default 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!
Baja Rooster is offline  
Reply
Old 10-12-2018 | 01:01 PM
  #2  
RSCHAP1's Avatar
Registered
20 Year Member
 
Joined: Jun 2001
Posts: 817
Likes: 278
From: Murray Lake Lowell MI
Default

Within the one year warranty time?
I see that is what they advertise for most of their stuff.
RSCHAP1 is offline  
Reply
Old 10-12-2018 | 02:11 PM
  #3  
BUP
Banned
 
Joined: Jul 2011
Posts: 9,594
Likes: 45
From: Ft. Worth TX
Default

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.
BUP is offline  
Reply
Old 10-12-2018 | 02:31 PM
  #4  
Registered
15 Year Member
 
Joined: Nov 2009
Posts: 4,198
Likes: 500
From: KY
Default

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
AllDodge is offline  
Reply
Old 10-12-2018 | 03:03 PM
  #5  
Thread Starter
Registered
10 Year Member
 
Joined: Oct 2013
Posts: 2,888
Likes: 148
From: SF Bay Area
Default

Originally Posted by AllDodge
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
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
Baja Rooster is offline  
Reply
Old 10-13-2018 | 01:13 AM
  #6  
Griff's Avatar
Charter Member # 55
25 Year Member
Charter Member
Super Moderators
 
Joined: Oct 2000
Posts: 20,241
Likes: 2,490
From: Omaha/LOTO
Default

Originally Posted by Baja Rooster
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.
Griff is offline  
Reply
Old 10-13-2018 | 08:05 AM
  #7  
Registered
15 Year Member
 
Joined: Nov 2009
Posts: 4,198
Likes: 500
From: KY
Default

My Formula came with Start, House and Generator bats and the standard Merc ALT keeps them all changed
AllDodge is offline  
Reply
Old 10-13-2018 | 08:12 AM
  #8  
Registered
5 Year Member
 
Joined: Aug 2016
Posts: 312
Likes: 22
From: Reno, NV
Default

They make a voltage sensitive relay that will charge different banks of batteries.
Tahoe540 is offline  
Reply
Old 10-13-2018 | 09:35 AM
  #9  
Craney's Avatar
Registered
20 Year Member
 
Joined: Oct 2004
Posts: 2,670
Likes: 651
From: Clayton NJ
Default

I had a starter from DB junk DB = don’t bother
Craney is offline  
Reply
Old 10-25-2018 | 03:57 PM
  #10  
Registered
10 Year Member
 
Joined: Jul 2015
Posts: 1,201
Likes: 89
From: Atlantic Southeast
Default

What about Arco Alts.?

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

Keith
Tractionless is offline  
Reply


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.