SailNet Community - Reply to Topic
Thread: Battery Setup: Blue Sea ACR? Reply to Thread
Title:
Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:
 

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



  Additional Options
Miscellaneous Options

Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


  Topic Review (Newest First)
09-10-2008 10:49 AM
SEMIJim
Quote:
Originally Posted by btrayfors View Post
No matter what Xantrex says, if you're gonna use an EchoCharge, I'd disconnect the second "channel" (i.e., the 2nd red wire from the charger).
That's probably what I'll do in any event, because...

Quote:
Originally Posted by btrayfors View Post
It's not a question of how much amperage; it's a question of flow control (or "interaction" as you correctly surmised at the beginning).
Yes.

Quote:
Originally Posted by btrayfors View Post
The EchoCharge is built exactly for what you wanna do. The charger's 2nd channel likely isn't as "smart". Leaving it connected could fool the EchoCharge into thinking the battery is at a higher level of charge than it really is.
It all depends on how the 10TB and Echo-Charge's outputs and sensing are designed. They might mess with one another and they might not. But, since the 10TB's two "channels" aren't really all that independent of one another, anyway, it makes more sense to remove all doubt and let the starter and house banks be handled the same at the dock as off the alternator: Main charge to the house bank, echo to the starting battery.

Quote:
Originally Posted by btrayfors View Post
Without getting to a real design engineer familiar with that particular charger (and where do you find one at Xantrex these days?), I'd opt for the "clean" solution rather than trust to what someone told you over the phone.
Agreed.

Jim
09-09-2008 04:24 PM
btrayfors No matter what Xantrex says, if you're gonna use an EchoCharge, I'd disconnect the second "channel" (i.e., the 2nd red wire from the charger).

It's not a question of how much amperage; it's a question of flow control (or "interaction" as you correctly surmised at the beginning).

The EchoCharge is built exactly for what you wanna do. The charger's 2nd channel likely isn't as "smart". Leaving it connected could fool the EchoCharge into thinking the battery is at a higher level of charge than it really is.

Without getting to a real design engineer familiar with that particular charger (and where do you find one at Xantrex these days?), I'd opt for the "clean" solution rather than trust to what someone told you over the phone.

Bill
09-09-2008 02:04 PM
SEMIJim
Quote:
Originally Posted by btrayfors View Post
Jim,

The TrueCharge 10TB charger can handle one battery bank just fine. Connect one red wire and one black wire to the desired battery bank (e.g., to the house bank).
Yes. Alternatively: I can leave the 10TB hooked up just the way it is, and hook the Echo-Charge up. Xantrex says they will not interfere with one another.

Quote:
Originally Posted by btrayfors View Post
The EchoCharge will work independently of the TrueCharge 10TB charger. Connect it to the start battery and the house battery bank per instructions which accompany the device.
Yes, of course.

Since the 10TB only has 10A max output, its behaviour using one channel run through the Echo-Charge would probably be the same as when using the two "channels," which aren't really very independent at all, it seems.

Jim
09-09-2008 12:03 PM
denverd0n
Quote:
Originally Posted by btrayfors
The TrueCharge 10TB charger can handle one battery bank just fine.
Just so that I'm completely clear, when you use an EchoCharge type device you have no need, nor use, for a charger that can charge two banks independently. You only want to charge one bank anyway, and let the EchoCharge handle the other one.

One thing that is obvious from all of these "how do I charge my batteries" threads is that there is a LOT of confusion out there! Is there a book that explains it all in a clear and concise manner for the layman? Perhaps Nigel Calder's book? (Which, I confess, is on my list but I haven't gotten around to reading yet.)
09-09-2008 09:25 AM
btrayfors Jim,

The TrueCharge 10TB charger can handle one battery bank just fine. Connect one red wire and one black wire to the desired battery bank (e.g., to the house bank).

The EchoCharge will work independently of the TrueCharge 10TB charger. Connect it to the start battery and the house battery bank per instructions which accompany the device.

Bill
09-09-2008 09:08 AM
SEMIJim
Quote:
Originally Posted by hellosailor View Post
You really have a 35A alternator?? Not 55A?
Yes, I really do have a 35A alternator, assuming it's the original/stock Motorola alternator with which Atomic-4s were fitted. I have no reason to believe otherwise, and it looks like the original I've seen in pictures.

Jim
09-09-2008 09:01 AM
SEMIJim Ok, everybody, thanks for your comments. Very much appreciated.

It looks like The Way To Go (for us, anyway) would be the Blue Sea Systems e-Series Battery Switch Dual Circuit Plus [tm]



coupled with the Xantrex Echo-Charge



I wonder what kind of interaction there would possibly be between the Xantrex Echo-Charge and the Xantrex TrueCharge 10TB charger? The Echo-Charge detects charging on the house bank and diverts up to 15A to the start battery. The 10TB is a dual-channel smart charger, that's going to want to handle each battery/bank independently. Guess I'll have to call/write Xantrex to ask them about that.

Thanks again, everybody. (Now I just have to convince The Admiral and Family CFO to let me spend Yet A Few More Bucks on this solution. Wish me luck!)

Jim
09-08-2008 06:50 PM
hellosailor Halekai-
" This is because your group 24 battery with roughly 70 amp hours just tried to charge a 450 amp hour bank of dead batteries "
If the Blue Sea ACR gizmo is as smart as the Yandina/West combiner is, that scenario could not happen!
Check the manual. If the house bank is so far depleted that it could suck the alternator and battery voltage below 13.6(?) volts--the combiner will open up and isolate the starting battery from the house bank again. IIRC there's about a 90-second delay in the system so it doesn't chatter, but when the system voltage drops, for any reason, the Yandina combiner cuts out the second battery until the primary one has been brought back up to nominal voltage again.

The only real fault I've heard is that, after all, a relay can fail. And I agree, they can fail, but they're pretty damn reliable when they are sourced from prime sources to begin with. (As both the Yandina and BS probably are.)

Jim-
In terms of capacity and updates later, as long as the maximum amperage ratings are less than what you are planning to upgrade to, you'll be fine. The Yandina/West version comes in 75A and 150A ratings, as I recall, and as long as your alternator output is LESS than the device rating, you're OK.
You really have a 35A alternator?? Not 55A?
09-08-2008 06:04 PM
RXBOT
Float voltage

Halekai or is it Acoustic, don't some multistage chargers do the float stage at low 12 volt levels. While were on subject don't different types of battery have different limits to what is healthy for them? That may be more concerned with amps though.
09-08-2008 05:41 PM
sailingdog Actually, it depends on the which ACR relay you've got. The one pictured above will charge BOTH banks provided either side has a charging level voltage present. The older one would only combine and charge both banks if the primary bank was being charged, but wouldn't do the same if the secondary bank had a charging voltage unless a sense wire was connected.

Quote:
Originally Posted by RXBOT View Post
Didn't the OP say he had the Blue sea automatic charging relay system. I think the relay will charge either bank automatically regardless of where the switch is set. Thats the whole idea of the system isn't it? I also understand that you have to be carefull when using multi stage chargers because of sensing issues when in float stage (charging voltage 2 low for proper operation).
This thread has more than 10 replies. Click here to review the whole thread.

Posting Rules  
You may post new threads
You may 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 On

 
For the best viewing experience please update your browser to Google Chrome