Stus-List The Pursuit of Excellence

[Motion Designs Limited via CnC-List]

Doug Hunter who has written a number of books including Against the odds: The 
incredible story of Evergreen and the Canada's Cup was commissioned in 1982 by 
George H. Cuthbertson to write the corporate history of C Yachts.   

Well, it has sat on multiple bookcases since then and finally is available for 
everyone to read.

If you are interested in the corporate history of C

Free digital download from:

https://www.motiondesignslimited.com/the-chandlery?store-page=The-Pursuit-of-Excellence-p475175729

JohnKelly Cuthbertson 

www.candcyachts.com
Motion Designs Limited
647 990 7752

Stus-List Re: Adding a second house battery

[Doug Robinson via CnC-List]

On Nemesis we have modern upgrade to the age old Perko switch. We have 
the 24 hour circuits wired to the Bilge pump and the Fridge.  The other 
two  are the house circuit and a spare (radio power someday perhaps).  
The  starting battery is maintained through the now mandatory ELI 
breaker which has a bypass breaker to a marine charger just for the 
engine bat.  The house bank gets charged through the inverter while at 
the dock.  No fried diodes, simple operation, top circuit protection.  
When the engine is running everyone gets their share of juice through 
the ACR charging relay.


This is the way your RV should have been wired when delivered Well 
the Bilge circuit should have been replaced with the Nest maybe.


Doug Robinson, s/v Nemesis


https://www.bluesea.com/products/8686/Dual_Battery_Bank_Management_Panel

https://www.bluesea.com/products/7610/SI-ACR_Automatic_Charging_Relay_-_12_24V_DC_120A



On 7/4/22 11:55, Korbey Hunt via CnC-List wrote:
I have same in my 34 C  2 batts for house and one for start.  With 
a 1, 2 all switch you can use the house bank (1) on the hook and know 
the start bank (2) is isolated.  Switch to all when the engine is 
started and all 3 batts will charge.  I bought a Noco sealed 10 amp 
charger for the dock.  I do not have any high use appliances.  I do 
have a 1200 watt inverter wired direct to the house bank.   It is 
sometimes used for coffee grinder.


Get Outlook for Android 

*From:* Neil Andersen via CnC-List 
*Sent:* Monday, July 4, 2022 8:35:32 AM
*To:* Stus-List 
*Cc:* Jeffrey A. Laman ; Neil Andersen 


*Subject:* Stus-List Re: Adding a second house battery
If you “separate” the batteries with a 1-2-ALL switch like we have on 
our boats, you can control which battery gets used. If you have only 
drawn from one battery, your recharge time will be like it is now.


Neil Andersen, W3NEA
Rock Hall, MD 21661
484-354-8800

*From:* Jeffrey A. Laman via CnC-List 
*Sent:* Monday, July 4, 2022 10:18:24 AM
*To:* cnc-list@cnc-list.com 
*Cc:* Jeffrey A. Laman 
*Subject:* Stus-List Re: Adding a second house battery
This is how my C is set up and how it came when I bought it.  I 
added charger, with 2 bank capacity.  One side of the charger gets the 
two house, and the other side of the charger goes to start.  Works 
fine.  But, as noted, charging the house takes a longer.  I have 
debated whether to do away with the 2^nd  house battery since the boat 
does not consume that much power -- instruments and auto pilot.  All 
lights are LED now.  Stereo use is at dock only.


Jeff Laman
81 C "Harmony"
Ludington, MI

*From:* Jeff Nelson via CnC-List 
*Sent:* Monday, July 4, 2022 10:13 AM
*To:* cnc-list@cnc-list.com 
*Cc:* Jeff Nelson 
*Subject:* Stus-List Re: Adding a second house battery
Assuming you simply want to double your storage capacity, put the 
batteries side by side, wire positive to positive and
negative to negative.  You now have 12 volts with 2ce the ampacity.  
Others may offer some advice on charging...but
I think you should be reasonably ok, except it will take a bunch 
longer to charge as you have 2ce the capacity that you

need to fill.

On 2022-07-04 10:41, Hoyt, Mike via CnC-List wrote:


Actually is for an RV but I can think of no better place to get 
answer to this type of question than this list.


Came with one group 27 deep cycle battery.  Wish to add a second and 
have been told that nothing needs to change re the charging systems, 
etc …  What is involved in adding a second group 27 battery?


Thanks

Mike Hoyt

Persistence

Halifax, NS



--
Cheers,
   Jeff Nelson
   Muir Caileag
   C 30 - 549
   Armdale Y.C.

Stus-List 37/40+ shift cable and steering cable

[Chris Riedinger via CnC-List]

Wonderong if anyone has the size and length for new control cables, I am
away from swaloon but would like to replace my cables next week if possible

TIA!

PS see you at the west coast rendezvous

-Chris

Stus-List Re: Adding a second house battery

[Chad Osmond via CnC-List]

Be sure to put the house feed positive on the first battery and negative on
the second battery otherwise it will draw unevenly.

Especially if you have some dirty connections.

On Mon., Jul. 4, 2022, 10:14 a.m. Jeff Nelson via CnC-List, <
cnc-list@cnc-list.com> wrote:

> Assuming you simply want to double your storage capacity, put the
> batteries side by side, wire positive to positive and
> negative to negative.
>

Stus-List Re: Adding a second house battery

[Josh via CnC-List]

If your desire is to stick with a flooded lead acid style (of which I am still 
a fan and would help keep this project simple and cheap) then the response of 
others is perfectly accurate.  Consider and recall a few things about this 
tried and true battery technology. 

1 - Fully charged, no load voltage, with residual surface charge removed of a 
typical 12v, BCI group 27 battery is 12.7 V.  State or charge (SOC) = 100%
2 - The same battery is considered to be fully discharged (SOC =0%) when its 
voltage equals 10.5 V
3 - The discharge curve is relatively straight so we can use a voltage meter to 
determine a battery's SOC.  12.7 - 10.5 = 2.2v over the entire 100% range.  So 
0.022 volts (no load) per percent discharged from the battery.
4 - To prevent damage and maintain the highest number of years of service life 
from your investment, discharging a battery below 50% should be avoided.  
Meaning that a voltage below 11.6v should be established as a critically low 
SOC.
5 - Changing is not so linear.  Up to about 80% the rate at which the battery 
will accept charge power is linear.  After that, the rate tapers assuming your 
charger is matched to charge at the maximum appropriate rate.  Getting beyond 
80% takes longer and is far less critical to maintaining battery health than 
staying above 50%
6 - The maximum rate of charge is determined by taking 30% of the amp hour 
capacity.  For easy math let's assume your group 27 battery has 100 A-Hr of 
capacity.  That means you should limit the charge current to 30 amps.  
Conveniently enough for math sake, this means that charging the battery from 
50% to 80% (30 A-Hrs) can be achieved in 1 hour with an appropriately matched 
charger.

So, since you didn't tell us what your charger current capacity is or how much 
time you have to charge or how low you currently discharge a single battery or 
your current AHr usage, there are many options that may make your upgrade more 
useful and efficient.  Provide those details and I'll be glad to noddle through 
it with you.

Josh Muckley
S/V Sea Hawk
1989 C 37+
Solomons, MD

Jul 4, 2022 09:41:57 Hoyt, Mike via CnC-List :

> Actually is for an RV but I can think of no better place to get answer to 
> this type of question than this list. 
> 
> Came with one group 27 deep cycle battery.  Wish to add a second and have 
> been told that nothing needs to change re the charging systems, etc …  What 
> is involved in adding a second group 27 battery?
> 
> Thanks
> 
> Mike Hoyt
> 
> Persistence
> 
> Halifax, NS
> 

Stus-List Re: Adding a second house battery

[Korbey Hunt via CnC-List]

I have same in my 34 C  2 batts for house and one for start.  With a 1, 2 
all switch you can use the house bank (1) on the hook and know the start bank 
(2) is isolated.  Switch to all when the engine is started and all 3 batts will 
charge.  I bought a Noco sealed 10 amp charger for the dock.  I do not have any 
high use appliances.  I do have a 1200 watt inverter wired direct to the house 
bank.   It is sometimes used for coffee grinder.

Get Outlook for Android

From: Neil Andersen via CnC-List 
Sent: Monday, July 4, 2022 8:35:32 AM
To: Stus-List 
Cc: Jeffrey A. Laman ; Neil Andersen 

Subject: Stus-List Re: Adding a second house battery

If you “separate” the batteries with a 1-2-ALL switch like we have on our 
boats, you can control which battery gets used. If you have only drawn from one 
battery, your recharge time will be like it is now.

Neil Andersen, W3NEA
Rock Hall, MD 21661
484-354-8800

From: Jeffrey A. Laman via CnC-List 
Sent: Monday, July 4, 2022 10:18:24 AM
To: cnc-list@cnc-list.com 
Cc: Jeffrey A. Laman 
Subject: Stus-List Re: Adding a second house battery

This is how my C is set up and how it came when I bought it.  I added 
charger, with 2 bank capacity.  One side of the charger gets the two house, and 
the other side of the charger goes to start.  Works fine.  But, as noted, 
charging the house takes a longer.  I have debated whether to do away with the 
2nd house battery since the boat does not consume that much power -- 
instruments and auto pilot.  All lights are LED now.  Stereo use is at dock 
only.

Jeff Laman
81 C "Harmony"
Ludington, MI

From: Jeff Nelson via CnC-List 
Sent: Monday, July 4, 2022 10:13 AM
To: cnc-list@cnc-list.com 
Cc: Jeff Nelson 
Subject: Stus-List Re: Adding a second house battery

Assuming you simply want to double your storage capacity, put the batteries 
side by side, wire positive to positive and
negative to negative.  You now have 12 volts with 2ce the ampacity.  Others may 
offer some advice on charging...but
I think you should be reasonably ok, except it will take a bunch longer to 
charge as you have 2ce the capacity that you
need to fill.

On 2022-07-04 10:41, Hoyt, Mike via CnC-List wrote:

Actually is for an RV but I can think of no better place to get answer to this 
type of question than this list.



Came with one group 27 deep cycle battery.  Wish to add a second and have been 
told that nothing needs to change re the charging systems, etc …  What is 
involved in adding a second group 27 battery?



Thanks



Mike Hoyt

Persistence

Halifax, NS


--
Cheers,
  Jeff Nelson
  Muir Caileag
  C 30 - 549
  Armdale Y.C.

Stus-List Re: Adding a second house battery

[Neil Andersen via CnC-List]

If you “separate” the batteries with a 1-2-ALL switch like we have on our 
boats, you can control which battery gets used. If you have only drawn from one 
battery, your recharge time will be like it is now.

Neil Andersen, W3NEA
Rock Hall, MD 21661
484-354-8800

From: Jeffrey A. Laman via CnC-List 
Sent: Monday, July 4, 2022 10:18:24 AM
To: cnc-list@cnc-list.com 
Cc: Jeffrey A. Laman 
Subject: Stus-List Re: Adding a second house battery

This is how my C is set up and how it came when I bought it.  I added 
charger, with 2 bank capacity.  One side of the charger gets the two house, and 
the other side of the charger goes to start.  Works fine.  But, as noted, 
charging the house takes a longer.  I have debated whether to do away with the 
2nd house battery since the boat does not consume that much power -- 
instruments and auto pilot.  All lights are LED now.  Stereo use is at dock 
only.

Jeff Laman
81 C "Harmony"
Ludington, MI

From: Jeff Nelson via CnC-List 
Sent: Monday, July 4, 2022 10:13 AM
To: cnc-list@cnc-list.com 
Cc: Jeff Nelson 
Subject: Stus-List Re: Adding a second house battery

Assuming you simply want to double your storage capacity, put the batteries 
side by side, wire positive to positive and
negative to negative.  You now have 12 volts with 2ce the ampacity.  Others may 
offer some advice on charging...but
I think you should be reasonably ok, except it will take a bunch longer to 
charge as you have 2ce the capacity that you
need to fill.

On 2022-07-04 10:41, Hoyt, Mike via CnC-List wrote:

Actually is for an RV but I can think of no better place to get answer to this 
type of question than this list.



Came with one group 27 deep cycle battery.  Wish to add a second and have been 
told that nothing needs to change re the charging systems, etc …  What is 
involved in adding a second group 27 battery?



Thanks



Mike Hoyt

Persistence

Halifax, NS


--
Cheers,
  Jeff Nelson
  Muir Caileag
  C 30 - 549
  Armdale Y.C.

Stus-List Re: Adding a second house battery

[ALAN BERGEN via CnC-List]

What are you trying to accomplish? If  you want a spare battery bank,
connect the negatives together, and get a SPST switch to be able to switch
between the positive poles on the two banks. Another way is to get a DPDT
switch and switch both the positive and the negative poles. If  you want
more current capacity, just connect the two positives together and the two
negatives together. Nothing else has to change.

Alan Bergen
35 Mk III Thirsty
Rose City YC
Portland, OR



On Mon, Jul 4, 2022 at 6:41 AM Hoyt, Mike via CnC-List <
cnc-list@cnc-list.com> wrote:

> Actually is for an RV but I can think of no better place to get answer to
> this type of question than this list.
>
>
>
> Came with one group 27 deep cycle battery.  Wish to add a second and have
> been told that nothing needs to change re the charging systems, etc …  What
> is involved in adding a second group 27 battery?
>
>
>
> Thanks
>
>
>
> Mike Hoyt
>
> Persistence
>
> Halifax, NS
>

Stus-List Re: Adding a second house battery

[Hoyt, Mike via CnC-List]

Thanks Jeff and Jeff

That is also how Persistence is wired except one Xantrex charger for start and 
two house.  This RV has electric fridge which seems to consume a bit of power 
so the desire was to have the fully charged batteries last longer before 
requiring recharge

Mike

From: Jeffrey A. Laman via CnC-List 
Sent: July 4, 2022 11:18 AM
To: cnc-list@cnc-list.com
Cc: Jeffrey A. Laman 
Subject: Stus-List Re: Adding a second house battery

This is how my C is set up and how it came when I bought it.  I added 
charger, with 2 bank capacity.  One side of the charger gets the two house, and 
the other side of the charger goes to start.  Works fine.  But, as noted, 
charging the house takes a longer.  I have debated whether to do away with the 
2nd house battery since the boat does not consume that much power -- 
instruments and auto pilot.  All lights are LED now.  Stereo use is at dock 
only.

Jeff Laman
81 C "Harmony"
Ludington, MI

From: Jeff Nelson via CnC-List 
Sent: Monday, July 4, 2022 10:13 AM
To: cnc-list@cnc-list.com 
Cc: Jeff Nelson 
Subject: Stus-List Re: Adding a second house battery

Assuming you simply want to double your storage capacity, put the batteries 
side by side, wire positive to positive and
negative to negative.  You now have 12 volts with 2ce the ampacity.  Others may 
offer some advice on charging...but
I think you should be reasonably ok, except it will take a bunch longer to 
charge as you have 2ce the capacity that you
need to fill.
On 2022-07-04 10:41, Hoyt, Mike via CnC-List wrote:

Actually is for an RV but I can think of no better place to get answer to this 
type of question than this list.



Came with one group 27 deep cycle battery.  Wish to add a second and have been 
told that nothing needs to change re the charging systems, etc ...  What is 
involved in adding a second group 27 battery?



Thanks



Mike Hoyt

Persistence

Halifax, NS



--

Cheers,

  Jeff Nelson

  Muir Caileag

  C 30 - 549

  Armdale Y.C.

Stus-List Re: Adding a second house battery

[Jeffrey A. Laman via CnC-List]

This is how my C is set up and how it came when I bought it.  I added 
charger, with 2 bank capacity.  One side of the charger gets the two house, and 
the other side of the charger goes to start.  Works fine.  But, as noted, 
charging the house takes a longer.  I have debated whether to do away with the 
2nd house battery since the boat does not consume that much power -- 
instruments and auto pilot.  All lights are LED now.  Stereo use is at dock 
only.

Jeff Laman
81 C "Harmony"
Ludington, MI

From: Jeff Nelson via CnC-List 
Sent: Monday, July 4, 2022 10:13 AM
To: cnc-list@cnc-list.com 
Cc: Jeff Nelson 
Subject: Stus-List Re: Adding a second house battery

Assuming you simply want to double your storage capacity, put the batteries 
side by side, wire positive to positive and
negative to negative.  You now have 12 volts with 2ce the ampacity.  Others may 
offer some advice on charging...but
I think you should be reasonably ok, except it will take a bunch longer to 
charge as you have 2ce the capacity that you
need to fill.

On 2022-07-04 10:41, Hoyt, Mike via CnC-List wrote:

Actually is for an RV but I can think of no better place to get answer to this 
type of question than this list.



Came with one group 27 deep cycle battery.  Wish to add a second and have been 
told that nothing needs to change re the charging systems, etc …  What is 
involved in adding a second group 27 battery?



Thanks



Mike Hoyt

Persistence

Halifax, NS


--
Cheers,
  Jeff Nelson
  Muir Caileag
  C 30 - 549
  Armdale Y.C.

Stus-List Re: Adding a second house battery

[Jeff Nelson via CnC-List]

Assuming you simply want to double your storage capacity, put the 
batteries side by side, wire positive to positive and
negative to negative.  You now have 12 volts with 2ce the ampacity. 
Others may offer some advice on charging...but
I think you should be reasonably ok, except it will take a bunch longer 
to charge as you have 2ce the capacity that you

need to fill.

On 2022-07-04 10:41, Hoyt, Mike via CnC-List wrote:


Actually is for an RV but I can think of no better place to get answer 
to this type of question than this list.


Came with one group 27 deep cycle battery.  Wish to add a second and 
have been told that nothing needs to change re the charging systems, 
etc … What is involved in adding a second group 27 battery?


Thanks

Mike Hoyt

Persistence

Halifax, NS



--
Cheers,
  Jeff Nelson
  Muir Caileag
  C 30 - 549
  Armdale Y.C.

Stus-List Adding a second house battery

[Hoyt, Mike via CnC-List]

Actually is for an RV but I can think of no better place to get answer to this 
type of question than this list.

Came with one group 27 deep cycle battery.  Wish to add a second and have been 
told that nothing needs to change re the charging systems, etc …  What is 
involved in adding a second group 27 battery?

Thanks

Mike Hoyt
Persistence
Halifax, NS