Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 03-10-2012, 16:41   #1
Registered User

Join Date: Sep 2012
Location: Chester Nova Scotia
Boat: Hallberg-Rassy Rasmus 35
Posts: 5
Send a message via Skype™ to ddewolfe
Link 10 problems

Hello all,

Today I changed my house bank from Golf cart to AGM. But the link 10 - which only involves moving the red and blue wire from one bank to the other - has developed a strange behaviour. Voltage is correct, shows 100% full, but amps show a charge of about 275 amps with the engine off and no shore power.. And of course the amp hours show the results of this. Tried re-setting - no change.

Thoughts and advice appreciated!

Regards
Dave
dave@discoverysailing.com
__________________

__________________
ddewolfe is offline   Reply With Quote
Old 03-10-2012, 18:02   #2
Senior Cruiser
 
DeepFrz's Avatar

Cruisers Forum Supporter

Join Date: Mar 2006
Location: Winnipeg
Boat: None at this time
Posts: 7,930
Re: Link 10 problems

I'm not sure why you had to move the sense wires but did you also move the shunt?
__________________

__________________
DeepFrz is offline   Reply With Quote
Old 03-10-2012, 18:34   #3
CF Adviser
 
Bash's Avatar

Cruisers Forum Supporter

Join Date: Dec 2008
Location: sausalito
Boat: 14 meter sloop
Posts: 7,260
Re: Link 10 problems

When I changed from lead acid to AGM, I did not have to change any wires. All I had to do was reprogram such things as the float level, size of the bank, et cetera.
__________________
cruising is entirely about showing up--in boat shoes.
Bash is offline   Reply With Quote
Old 03-10-2012, 19:04   #4
Registered User

Join Date: Sep 2012
Location: Chester Nova Scotia
Boat: Hallberg-Rassy Rasmus 35
Posts: 5
Send a message via Skype™ to ddewolfe
Re: Link 10 problems

I simply changed the two wires from old battery bank to new.
__________________
ddewolfe is offline   Reply With Quote
Old 03-10-2012, 22:33   #5
Senior Cruiser
 
DeepFrz's Avatar

Cruisers Forum Supporter

Join Date: Mar 2006
Location: Winnipeg
Boat: None at this time
Posts: 7,930
Re: Link 10 problems

Did you change the pos. and negative main battery cables as well? What I'm getting at is did you change the shunt to the new battery bank?
__________________
DeepFrz is offline   Reply With Quote
Old 04-10-2012, 05:31   #6
Registered User

Join Date: Sep 2012
Location: Chester Nova Scotia
Boat: Hallberg-Rassy Rasmus 35
Posts: 5
Send a message via Skype™ to ddewolfe
Re: Link 10 problems

Quote:
Originally Posted by DeepFrz View Post
Did you change the pos. and negative main battery cables as well? What I'm getting at is did you change the shunt to the new battery bank?
All I did was

1.. unhook cables and wires from old bank

2.. remove old bank

3.. install new bank

4.. re-attach cables and wires.

Dave
__________________
ddewolfe is offline   Reply With Quote
Old 06-10-2012, 12:43   #7
Registered User

Join Date: Sep 2012
Location: Chester Nova Scotia
Boat: Hallberg-Rassy Rasmus 35
Posts: 5
Send a message via Skype™ to ddewolfe
Re: Link 10 problems

Update:
Swapped the green and orange on the shunt - which set amps to 0.0. Then put them back. Seems to work fine now except there is a 1.6-1.7 amp current when all is shut off. I have no ides what it is. Was never there before.

--Dave
__________________
ddewolfe is offline   Reply With Quote
Old 06-10-2012, 16:56   #8
Registered User

Join Date: Jan 2006
Location: Rhode Island
Boat: Tayana FD-12
Posts: 612
Images: 6
Re: Link 10 problems

Quote:
Originally Posted by ddewolfe View Post
Update:
Swapped the green and orange on the shunt - which set amps to 0.0. Then put them back. Seems to work fine now except there is a 1.6-1.7 amp current when all is shut off. I have no ides what it is. Was never there before.

--Dave
What was your current draw prior to AGMs?
With everything off my AGMs(420AH bank) are draining about 0.1-0.2A on link 10 display. Link 10 display makes it 0.2A.
Trace the "Always on" bus that would normally supply bilge pump(s), ignition harness, fridge, etc. You should not be having an un-accounted 1.6amps, that is a lot.
You can always measure voltage drop across the shunt. Divide it by shunt resistance to get current draw.
__________________
phorvati is offline   Reply With Quote
Old 06-10-2012, 18:18   #9
Senior Cruiser
 
Therapy's Avatar

Cruisers Forum Supporter

Join Date: Jul 2007
Location: W Florida
Boat: The Jon boat still, plus a 2007 SeaCat.
Posts: 6,894
Images: 4
Re: Link 10 problems

Quote:
Originally Posted by ddewolfe View Post
Update:
Swapped the green and orange on the shunt - which set amps to 0.0. Then put them back. Seems to work fine now except there is a 1.6-1.7 amp current when all is shut off. I have no ides what it is. Was never there before.

--Dave

Odd.

But you could have bad diode in an alternator?

Did you change all the parameters in the Link for AGMs?

I had a heck of a time doing mine when I had it because it is supposed to give you about 5 seconds to make a change before quitting and returning to normal display. Mine timed out at just under 2 seconds.

You have to give it the proper Puekert number too or it does not know what to do.

Even then...............

Here is some interesting reading on Link
Need Help Setting up my Battery Monitor
__________________
Who knows what is next.
Therapy is offline   Reply With Quote
Old 07-10-2012, 08:28   #10
Registered User

Join Date: Sep 2012
Location: Chester Nova Scotia
Boat: Hallberg-Rassy Rasmus 35
Posts: 5
Send a message via Skype™ to ddewolfe
Re: Link 10 problems

Update 2:

The 1.6 amp was positive, not negative, so looks like a charging source. But when the engine is running the alternator the charge is positive, as one would expect. I didn't change the Peukert Coefficient - it is at default 1.25. A bit of googling shows that maybe a value of 1.1 may be better.

Would this explain the 1.6 amp imaginary charging source?

--Dave
__________________
ddewolfe is offline   Reply With Quote
Old 07-10-2012, 09:41   #11
Senior Cruiser
 
Therapy's Avatar

Cruisers Forum Supporter

Join Date: Jul 2007
Location: W Florida
Boat: The Jon boat still, plus a 2007 SeaCat.
Posts: 6,894
Images: 4
Re: Link 10 problems

Quote:
Originally Posted by ddewolfe View Post
Update 2:

The 1.6 amp was positive, not negative, so looks like a charging source. But when the engine is running the alternator the charge is positive, as one would expect. I didn't change the Peukert Coefficient - it is at default 1.25. A bit of googling shows that maybe a value of 1.1 may be better.

Would this explain the 1.6 amp imaginary charging source?

--Dave
The number comes from the battery manufacturer. Can usually be found online.

I thought the 1.6 amp was dis-charging.

If it is charging, do you have solar?

Not sure at all but 1.6 could be a normal float current. Seems high though.
__________________

__________________
Who knows what is next.
Therapy is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 21:48.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.