Reply
 
Thread Tools Display Modes
 
Old 01-31-2015, 12:31 AM   #21
Senior Member
 
City: Gig Harbor
Country: USA
Vessel Name: Selah
Vessel Model: Ocean Alexander 40
Join Date: Dec 2011
Posts: 191
The 2 remote switches may be the starter cut-off switches. Quick test is to turn both remote switches and the DC selector switch off and try both engine starters. Turn one one and see if only one engine cranks or if they both do.

If they both crank with 1 switch on, switch logic may be:
Switch 1 on, both starters powered by battery 1
Switch 2 on, both starters powered by battery 2
Both switches on, both starters powered by both batteries, the batteries are connected together at the switches.

To (maybe) split the banks, turn remote switch 1 on and DC selector switch to position 2. This may turn battery 1 into the starting bank and battery 2 into the house bank. Each alternator would charge its respective battery.
__________________
Advertisement

av8r is offline   Reply With Quote
Old 01-31-2015, 01:11 AM   #22
Senior Member
 
City: marina del rey
Country: USA
Vessel Model: Goldenstar sportfisher
Join Date: Apr 2014
Posts: 165
Sorry if I confused what I have. Each motor only has 1 alternator.
I am doing to do some digging tomorrow. I assumed that the selector switch allowed which battery to be charged. Maybe I have no problem at all? I will let you know.

Again, I truly thank everyone for the replies.
__________________

Goldenstar38 is offline   Reply With Quote
Old 01-31-2015, 10:22 AM   #23
Senior Member
 
obthomas's Avatar
 
City: Seabrook Texas
Country: USA
Vessel Name: TheVenture
Vessel Model: 1985 Bestway Labelle Sundeck 40ft
Join Date: May 2013
Posts: 462
I have a twin engine two alternator Taiwanese trawler the alternators charge through a combiner. The battery charger charges the banks independently. I have only one selector and it is used to decide which set of batteries powers the DC panel or as some say the house bank. In other word with the selector I pick port or starboard or both battery banks to feed the house.
obthomas is offline   Reply With Quote
Old 01-31-2015, 11:46 AM   #24
Senior Member
 
City: marina del rey
Country: USA
Vessel Model: Goldenstar sportfisher
Join Date: Apr 2014
Posts: 165
It is sounding more like I may not have too much of a problem after all?

Is the combiner "factory installed" or one added at a later time?

Have to walk the dog quickly and then time to dig in and figure this out.

A loy of good ideas to try. Thanks you.
Goldenstar38 is offline   Reply With Quote
Old 02-01-2015, 07:16 AM   #25
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 16,529
A combiner can be a simple solenoid , or a transistor blue thing .

The solenoid passes the full voltage , the transistor gadget does not.

This may cause longer charge times at lower voltages when finished.

Purchase a good digital volt meter and learn how to use it.
FF is offline   Reply With Quote
Old 02-01-2015, 10:32 AM   #26
Guru
 
Capt.Bill11's Avatar
 
City: Sarasota/Ft. Lauderdale
Country: USA
Join Date: Apr 2014
Posts: 5,422
Quote:
Originally Posted by FF View Post
A combiner can be a simple solenoid , or a transistor blue thing .

The solenoid passes the full voltage , the transistor gadget does not.

This may cause longer charge times at lower voltages when finished.

Purchase a good digital volt meter and learn how to use it.
I think you may be talking about the difference between a charge combiner and charge isolation diodes. Some diodes can cause a voltage drop.
Capt.Bill11 is offline   Reply With Quote
Old 02-02-2015, 05:39 PM   #27
Veteran Member
 
steelydon's Avatar
 
City: Newport, RI/Beaufort, NC
Country: USA
Vessel Name: Obsession
Vessel Model: Transpac Eagle 40
Join Date: Aug 2014
Posts: 40
Is there a separate house/inverter bank? How is this bank charged while underway? Is the alternator output wire split to go to house/inverter and starting batteries or does it feed into the AC charger? If it feeds into the battery charger does it go through an isolator/diode? If there is no isolator at the charger then charging current is being distributed to both house and starting banks. There are several places that charging current can crossover the battery switch. Start with the big wires (batt cables) Track them to the solenoids and then follow the current from there. Same with alternators.

Hope this helps. If not lets just keep between us.

Steelydon
__________________

steelydon is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





All times are GMT -5. The time now is 11:14 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012