RE: catalina27-talk: Electrical question

windabout Mon, 16 Oct 2006 08:27:44 -0700

If you have a diesel disconnecting the batter cable won't do anything but 
possibly blow out your alternator diodes - diesels don't have spark so they 
don't need electricity to run.   I had an old yanmar once that was hand crank 
started. 
--
Dave
C27 #5212
Windabout
Cape Cod
http://dpbcc.home.comcast.net


 -------------- Original message ----------------------
From: "Nederhood, David" <[EMAIL PROTECTED]>
> Phil:
> 
> Appreciate the information.  Once connected to shore power and with my
> newly discovered Readi Amp 8 (2 bank) battery charger working, Impulsive
> fired right up.  Per your advice I will set the battery switch to either
> 1 or 2 not both and charge up each independently.
> 
>  
> 
> Have you ever heard of this as an alternator test? Once the engine is
> running, remove one of the battery leads and if the engine dies or
> sputters - alternator is faulty?
> 
> Thanks 
> 
> Dave 
> 
>  
> 
>  
> 
> ________________________________
> 
> From: [email protected]
> [mailto:[EMAIL PROTECTED] On Behalf Of Phil Agur
> Sent: Sunday, October 15, 2006 12:05 PM
> To: [email protected]
> Subject: RE: catalina27-talk: Electrical question
> 
>  
> 
> Dave,
> 
>  
> 
> Be somewhat cautious with the use of the "Both" position. It would be
> preferred that you keep the batteries isolated from each other unless
> you found you needed more cranking current at some point and elected to
> temporarily configure them for a "Jump" start (both). Even when you find
> a need to use "Both", for the jump start, you should switch out of it
> right after you get started.
> 
>  
> 
> An inboard owner that has used "Both" to get started can actually damage
> his alternator by attempting to charge both batteries simultaneously
> from a low state of charge. One nearly dead battery will really tax the
> alternator at first but quickly roll back to a 35-40 amp charge rate.
> Attempting two at a time charging when both batteries are nearly dead
> can over tax the alternator causing heat related damage. 
> 
>  
> 
> Phil Agur                    s/v Wing Tip
> 
> Commodore,             Call Sign WCW3485
> 
> IC27/270A                   MMSI 366901790 
> 
> www.catalina27.org <http://www.catalina27.org>       Vessel Doc# 1039809
> 
> -----Original Message-----
> From: [email protected]
> [mailto:[EMAIL PROTECTED] On Behalf Of Nederhood, David
> Sent: Saturday, October 14, 2006 1:57 PM
> To: [email protected]
> Subject: RE: catalina27-talk: Electrical question
> 
>  
> 
> Phil, Ralph, and Victor:
> 
> Thanks for the information I'll be back on the boat tomorrow AM.  The
> previous owner had installed a battery charger on the starboard side
> next to the electrical panel, but I have no instructions on use. I'll
> move the battery switch to both w/ shore power connected and monitor the
> battery charger to see if any output.
> 
> Thanks again,
> 
> Dave - learning about Impulsive - Nederhood
> 
> Guilford, CT
> 
>  
> 
>  
> 
> ________________________________
> 
> From: [email protected]
> [mailto:[EMAIL PROTECTED] On Behalf Of Phil Agur
> Sent: Saturday, October 14, 2006 3:40 PM
> To: [email protected]
> Subject: RE: catalina27-talk: Electrical question
> 
>  
> 
> Ralph is correct and the newer boats will have come with dual output
> shore power chargers. Older boats may certainly have been upgraded along
> the way so they too could be dual bank charger.
> 
>  
> 
> You can also find out quickly if you do by looking at the battery
> monitor. If the charger is dual output both banks will quickly reflect
> the 14 volt charge voltage.
> 
>  
> 
> Phil Agur                    s/v Wing Tip
> 
> Commodore,             Call Sign WCW3485
> 
> IC27/270A                   MMSI 366901790 
> 
> www.catalina27.org <http://www.catalina27.org>       Vessel Doc# 1039809
> 
> -----Original Message-----
> From: [email protected]
> [mailto:[EMAIL PROTECTED] On Behalf Of Ralph E. Ahseln
> Sent: Saturday, October 14, 2006 10:06 AM
> To: [email protected]
> Subject: Re: catalina27-talk: Electrical question
> 
>  
> 
> Dave,
> 
>  
> 
> It Depends.
> 
> On whether you HAVE an onboard Charger ?...
> 
> And , If so,
> 
> What kind of charger.. ??    
> 
> Some chargers have two outputs .. Some only one..
> 
>  
> 
> If you do have a charger, you can find out quickly by Tracing the leads
> (wires) from the charger.
> 
>  
> 
> It's a good idea to keep a record of the   Make, Model, and Operational
> instructions of all the hardware you have, Especially ..Electrical,
> Electronic and Engine ..
> 
>  
> 
> Best Luck,
> 
> Ralph Ahseln
> 
> "Oblio"    1984 std.
> 
> Gresham OR
> 
>       ----- Original Message ----- 
> 
>       From: Nederhood, David <mailto:[EMAIL PROTECTED]>  
> 
>       To: [email protected] 
> 
>       Sent: Saturday, October 14, 2006 9:02 AM
> 
>       Subject: RE: catalina27-talk: Electrical question
> 
>        
> 
>       Good morning, all:
> 
>       Just went out to my C27 after no use for weeks and it turns over
> very slowly and then not at all so concluding both year old batteries
> are dead.  If I hook up the onshore power to the boat will that charge
> both batteries?  Or are there two separate systems?
> 
>       Thanks 
> 
>       Dave Nederhood
> 
>       Guilford, CT 
> 
>       Impulsive
> 
>        
> 
>

--- Begin Message ---

Phil:

Appreciate the information. Once connected to shore power and with my newly discovered Readi Amp 8 (2 bank) battery charger working, Impulsive fired right up. Per your advice I will set the battery switch to either 1 or 2 not both and charge up each independently.

Have you ever heard of this as an alternator test? Once the engine is running, remove one of the battery leads and if the engine dies or sputters – alternator is faulty?

Thanks

Dave

From: [email protected] [mailto:[email protected]] On Behalf Of Phil Agur
Sent: Sunday, October 15, 2006 12:05 PM
To: [email protected]
Subject: RE: catalina27-talk: Electrical question

Dave,

Be somewhat cautious with the use of the “Both” position. It would be preferred that you keep the batteries isolated from each other unless you found you needed more cranking current at some point and elected to temporarily configure them for a “Jump” start (both). Even when you find a need to use “Both”, for the jump start, you should switch out of it right after you get started.

An inboard owner that has used “Both” to get started can actually damage his alternator by attempting to charge both batteries simultaneously from a low state of charge. One nearly dead battery will really tax the alternator at first but quickly roll back to a 35-40 amp charge rate. Attempting two at a time charging when both batteries are nearly dead can over tax the alternator causing heat related damage.

Phil Agur                   s/v Wing Tip

Commodore,             Call Sign WCW3485

IC27/270A                   MMSI 366901790

www.catalina27.org      Vessel Doc# 1039809

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Nederhood, David
Sent: Saturday, October 14, 2006 1:57 PM
To: [email protected]
Subject: RE: catalina27-talk: Electrical question

Phil, Ralph, and Victor:

Thanks for the information I’ll be back on the boat tomorrow AM. The previous owner had installed a battery charger on the starboard side next to the electrical panel, but I have no instructions on use. I’ll move the battery switch to both w/ shore power connected and monitor the battery charger to see if any output.

Thanks again,

Dave – learning about Impulsive – Nederhood

Guilford, CT

From: [email protected] [mailto:[email protected]] On Behalf Of Phil Agur
Sent: Saturday, October 14, 2006 3:40 PM
To: [email protected]
Subject: RE: catalina27-talk: Electrical question

Ralph is correct and the newer boats will have come with dual output shore power chargers. Older boats may certainly have been upgraded along the way so they too could be dual bank charger.

You can also find out quickly if you do by looking at the battery monitor. If the charger is dual output both banks will quickly reflect the 14 volt charge voltage.

Phil Agur                   s/v Wing Tip

Commodore,             Call Sign WCW3485

IC27/270A                   MMSI 366901790

www.catalina27.org      Vessel Doc# 1039809

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Ralph E. Ahseln
Sent: Saturday, October 14, 2006 10:06 AM
To: [email protected]
Subject: Re: catalina27-talk: Electrical question

Dave,

It Depends.

On whether you HAVE an onboard Charger ?...

And , If so,

What kind of charger.. ??

Some chargers have two outputs .. Some only one..

If you do have a charger, you can find out quickly by Tracing the leads (wires) from the charger.

It's a good idea to keep a record of the   Make, Model, and Operational instructions of all the hardware you have, Especially ..Electrical, Electronic and Engine ..

Best Luck,

Ralph Ahseln

"Oblio"    1984 std.

Gresham OR

----- Original Message -----

From: Nederhood, David

To: [email protected]

Sent: Saturday, October 14, 2006 9:02 AM

Subject: RE: catalina27-talk: Electrical question

Good morning, all:

Just went out to my C27 after no use for weeks and it turns over very slowly and then not at all so concluding both year old batteries are dead. If I hook up the onshore power to the boat will that charge both batteries? Or are there two separate systems?

Thanks

Dave Nederhood

Guilford, CT

Impulsive

--- End Message ---

RE: catalina27-talk: Electrical question

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