Switching battery banks with engine running - Page 6 - SailNet Community
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post #51 of 67 Old 10-01-2008
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I'm recommending that you install a BlueSea Dual Circuit Plus Battery Switch and an ACR or a BlueSea Dual Circuit Plus Battery Switch and an echo charger. You do not need both an echo charger and a battery combiner.
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Originally Posted by davidpm View Post
Are you saying an install could benefit from both? How.
They look similar in function.

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post #52 of 67 Old 10-01-2008
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The easiest..

the easiest thing to do to prevent frying the diodes is this.

#1 Remove and move the charging wire that goes from the alternator to the battery switch. Move the switch end of this wire and wire it direct to the house bank. Now you can not disconnect the "load" from the alternator with the engine running as it's now wired direct to the load/batteries.

#2 Add an ACR type charging relay, automatically combines banks when it senses charging voltage, or an Echo type charger which is basically a 12V battery charger that kicks on at charging voltages to charge the start bank without actually combining them.

You have retained your 1/2/OFF/BOTH switch but made it safe for your alternator. Just remember that it will not eliminate "stupidity" and the human factor of you leaving your switch in the "both" position and killing both banks...

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post #53 of 67 Old 10-01-2008
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Halekai-

If you find something that can eliminate "Stupidity", I'll buy a case or two of it and spray it at people I have to work with to make my life easier...

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post #54 of 67 Old 10-01-2008
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Did anybody see my post?
I am still wondering what you guys think of this set up?
I like it. It seems to be a little easier to use. Its obviuosly not fool proof. I never had a boat with this type of switching before and I am curious as to why there are not more out there like this.
Or just ignore it......
Bump

Quote:
Originally Posted by sailortjk1 View Post
Am I the only one who does not have a typical battery swich?
This subject comes up a lot and I was wondering if my system is any better or worse or what you guys think.

Our boat does not have a battery switch as it is commonly reffered to, we have (3) T-Handles mounted down in the aft berth. (1) for the Gound, (1) for Battery 1;starting, and (1) for Battery 2; House Bank. I have tried to find a photo but I don't have one and I can't find an example of the set up anywhere on line.

With the handle in the Vertical position the battery is off, and in the Horizontal position the Battery is on.

I always leave the House on and use that to start the engine, when I want to charge the starting batt I flip the lever to Horizontal. No problems and it seems a lot less confusing than the typical 1, 2, Both. I simply have to remember to NEVER switch off both batteries or to flip both the handles to the Vertical position when the engine is running.

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TJK-

Can you post a photo of said battery switch setup???

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Quote:
Originally Posted by sailingdog View Post
TJK-

Can you post a photo of said battery switch setup???
Don't have one currently, I can try to get one this weekend.
Go White Sox!

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Quote:
Originally Posted by sailortjk1 View Post
Did anybody see my post?
I am still wondering what you guys think of this set up?
I like it. It seems to be a little easier to use. Its obviuosly not fool proof. I never had a boat with this type of switching before and I am curious as to why there are not more out there like this.
Or just ignore it......
Bump

My boat has the same set up, I like it also. It is easy to cut a battery in or out for charging or starting.
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Quote:
Originally Posted by bubb2 View Post
My boat has the same set up, I like it also. It is easy to cut a battery in or out for charging or starting.
Thanks Mike.
I knew I couldn't be the only one out there.
When are you leaving for St. Pete's?

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post #59 of 67 Old 10-01-2008
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Quote:
Originally Posted by sailortjk1 View Post
Thanks Mike.
I knew I couldn't be the only one out there.
When are you leaving for St. Pete's?
That's the typical French set-up. My sister's Bene 285 has it as well. She has two reds, and one black T-handle. I always thought the black was the combiner?


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Quote:
Originally Posted by JohnRPollard View Post
That's the typical French set-up. My sister's Bene 285 has it as well. She has two reds, and one black T-handle. I always thought the black was the combiner?

No John, that black one is the electrical disconnect, the one you don't want to touch when the engine is running!!!!!
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