Re: Stus-List Winter battery maintenance.

[Chuck S via CnC-List]

Nice article on batteries in winter. Thanks for the clarity.


> On December 2, 2018 at 10:53 PM Marek Dziedzic via CnC-List 
>  wrote:
> 
> 
> Another decent article on winter self-discharge can be found here: 
> http://www.pbase.com/mainecruising/self_discharge .
> 
>  
> 
> Not on the C Photo Album site, but almost as good.
> 
>  
> 
> Marek
> 
>  
> 
> 1994 C270 ”Legato”
> 
> Ottawa, ON
> 
>  
> 
>  
> 
>  
> 
> From: CnC-List  On Behalf Of Ken Heaton 
> via CnC-List
> Sent: Sunday, December 2, 2018 07:27
>     To: cnc-list 
> Cc: Ken Heaton 
> Subject: Re: Stus-List Winter battery maintenance.
> 
>  
> 
> Stu has an article linked on the front page of the Photo Album: Surrette 
> Battery Co. Ltd. Bulletin #506 - Winter Storage
> 
>  
> 
> http://www.cncphotoalbum.com/doityourself/batteries/batteries.htm 
> https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.cncphotoalbum.com%2Fdoityourself%2Fbatteries%2Fbatteries.htm=02%7C01%7C%7C0e61a04c178b4ca5006708d658519483%7C84df9e7fe9f640afb435%7C1%7C0%7C636793504730256677=AdPIX2%2Fu15cMhEr0CmuWKOa%2Fs%2FHA5Gu4A8q036M8gCo%3D=0
> 
>  
> 
> Batteries stored below 59 F. self discharge very slowly, the colder the 
> storage temperature, the slower.  Start with them fully charged and 
> everything shut off and better yet a cable disconnected.
> 
>  
> 
> Ken H.
> 
>  
> 
> On Sun, 2 Dec 2018 at 06:59, dwight veinot via CnC-List 
> mailto:cnc-list@cnc-list.com > wrote:
> 
> > > 
> > If your batteries are good they will hold charge all winter long if 
> > you do as Robert on AZURA explained. Did i suggest you do it that way 
> > Robert?  If they don’t hold charge you can probably look forward to buying 
> > new batteries very soon. Consider it a test on your batteries: works every 
> > time but dont drop by occaisionaly during winter storage to charge them if 
> > you want a reliable test
> > 
> >  
> > 
> > On Sat, Dec 1, 2018 at 5:19 PM Marek Dziedzic via CnC-List 
> > mailto:cnc-list@cnc-list.com > wrote:
> > 
> > > > > 
> > > I would not put a solar panel without a controller, even if 
> > > it puts only 1 A.
> > > 
> > > Why? I murdered two batteries this way. My panel was 15 W, so 
> > > hardly tons of current, but each battery lasted just about a season. I 
> > > thought that spending extra $50 for a controller was a waste of money. I 
> > > blamed the batteries, but I learned since.
> > > 
> > > Marek
> > > 
> > > -Original Message-
> > > From: CnC-List  > > mailto:cnc-list-boun...@cnc-list.com > On Behalf Of Len Mitchell via 
> > > CnC-List
> > > Sent: Saturday, December 1, 2018 12:04
> > > To: CNC List  > > mailto:cnc-list@cnc-list.com >
> > > Cc: Len Mitchell  > > mailto:xfireca...@gmail.com >
> > > Subject: Stus-List Winter battery maintenance.
> > > 
> > > Not sure why no one has talked about a solar panel to keep 
> > > batteries topped up! Or did I miss something? The price just keeps 
> > > getting lower and they work well. Mine are always up and the boat is 
> > > covered in canvas plus snow. A small inexpensive panel will deliver 2 
> > > amps or less in the daylight and won’t even require a controller at that 
> > > charge rate. If your batteries are being discharged or they aren’t strong 
> > > enough, they can freeze. Check specific gravity and electrolyte level yes!
> > > Len
> > > 
> > > Sent from my iPad
> > > ___
> > > 
> > > Thanks everyone for supporting this list with your 
> > > contributions.  Each and every one is greatly appreciated.  If you want 
> > > to support the list - use PayPal to send contribution --   
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> > >  
> > > https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.paypal.me%2Fstumurray=02%7C01%7C%7C0e61a04c178b4ca5006708d6585194

Re: Stus-List Winter battery maintenance.

[Marek Dziedzic via CnC-List]

Another decent article on winter self-discharge can be found here: 
http://www.pbase.com/mainecruising/self_discharge .

Not on the C Photo Album site, but almost as good.

Marek

1994 C270 ”Legato”
Ottawa, ON



From: CnC-List  On Behalf Of Ken Heaton via 
CnC-List
Sent: Sunday, December 2, 2018 07:27
To: cnc-list 
Cc: Ken Heaton 
Subject: Re: Stus-List Winter battery maintenance.

Stu has an article linked on the front page of the Photo Album: Surrette 
Battery Co. Ltd. Bulletin #506 - Winter Storage

http://www.cncphotoalbum.com/doityourself/batteries/batteries.htm<https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.cncphotoalbum.com%2Fdoityourself%2Fbatteries%2Fbatteries.htm=02%7C01%7C%7C0e61a04c178b4ca5006708d658519483%7C84df9e7fe9f640afb435%7C1%7C0%7C636793504730256677=AdPIX2%2Fu15cMhEr0CmuWKOa%2Fs%2FHA5Gu4A8q036M8gCo%3D=0>

Batteries stored below 59 F. self discharge very slowly, the colder the storage 
temperature, the slower.  Start with them fully charged and everything shut off 
and better yet a cable disconnected.

Ken H.

On Sun, 2 Dec 2018 at 06:59, dwight veinot via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
If your batteries are good they will hold charge all winter long if you do as 
Robert on AZURA explained. Did i suggest you do it that way Robert?  If they 
don’t hold charge you can probably look forward to buying new batteries very 
soon. Consider it a test on your batteries: works every time but dont drop by 
occaisionaly during winter storage to charge them if you want a reliable test

On Sat, Dec 1, 2018 at 5:19 PM Marek Dziedzic via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
I would not put a solar panel without a controller, even if it puts only 1 A.

Why? I murdered two batteries this way. My panel was 15 W, so hardly tons of 
current, but each battery lasted just about a season. I thought that spending 
extra $50 for a controller was a waste of money. I blamed the batteries, but I 
learned since.

Marek

-Original Message-
From: CnC-List 
mailto:cnc-list-boun...@cnc-list.com>> On Behalf 
Of Len Mitchell via CnC-List
Sent: Saturday, December 1, 2018 12:04
To: CNC List mailto:cnc-list@cnc-list.com>>
Cc: Len Mitchell mailto:xfireca...@gmail.com>>
Subject: Stus-List Winter battery maintenance.

Not sure why no one has talked about a solar panel to keep batteries topped up! 
Or did I miss something? The price just keeps getting lower and they work well. 
Mine are always up and the boat is covered in canvas plus snow. A small 
inexpensive panel will deliver 2 amps or less in the daylight and won’t even 
require a controller at that charge rate. If your batteries are being 
discharged or they aren’t strong enough, they can freeze. Check specific 
gravity and electrolyte level yes!
Len

Sent from my iPad
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Re: Stus-List Winter battery maintenance.

[Dan via CnC-List]

That storm destroyed the dock I was on at AYC. The piece of dock my boat
was tied to broke free and was about to make history when some folks who I
am eternally greatful to lashed the dock back together with some old nylon
lines. My boat took a few small gel coat rubbs but otherwise made it
unharmed. My home-made drop-sheet enclosure survived both the xmas day and
boxing day storms, then another one in January. It was an insane winter!
All caught on camera and posted to YouTube:
https://www.youtube.com/watch?v=h-aDgJIuZ8Y

Dan Cormier
Breakaweigh
C
Halifax, NS
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Re: Stus-List Winter battery maintenance.

[Dan via CnC-List]

That storm destroyed the dock I was on at AYC. The piece of dock my boat
was tied to broke free and was about to make history when some folks who I
am eternally greatful to lashed the dock back together with some old nylon
lines. My boat took a few small gel coat rubbs but otherwise made it
unharmed. My home-made drop-sheet enclosure survived both the xmas day and
boxing day storms, then another one in January. It was an insane winter!
All caught on camera and posted to YouTube:
https://www.youtube.com/watch?v=h-aDgJIuZ8Y



On Sun, Dec 2, 2018 at 11:15 AM robert via CnC-List 
wrote:

> My batteries are Group 27's, deep cycle, made by Great Northern Batteries
> purchased in April 2009 and have seen 10 sailing seasons now.one get
> used almost every day during the sailing seasonI alternate use from one
> day to another to even their use. They have never been off the boat since
> purchased.
>
> My boat gets shrink wrapped with an access door so I can go aboard
> easily..however, last year on Xmas day, we had a big wind storm that
> somehow blew my door off never to be foundI had extra shrink wrap so I
> cut apiece to cover the opening and Tuck taped in place..In November,
> the batteries were fully charged with topped up electrolyte with everything
> disconnected. I did not go aboard until the first week of April.
>
> In April, I tested the batteriesone was 12.48V, the second was
> 12.52V.a little discharge but that is to be expected.  If your
> batteries can hold their charge, I see no reason to remove very heavy
> batteries where their is also the risk of an accident occurring moving
> them.  I recall weighing one and it was something over 50 lbs. which is not
> an insignificant weight to be moving around even if the battery has a
> plastic handle to carry it.
>
> I really should be thinking about replacing them but they still hold their
> charge.
>
> Rob Abbott
> AZURA
> C 32 - #277
> Halifax, N.S.
>
> On 2018-12-02 8:26 a.m., Ken Heaton via CnC-List wrote:
>
> Stu has an article linked on the front page of the Photo Album: Surrette
> Battery Co. Ltd. Bulletin #506 - Winter Storage
>
> http://www.cncphotoalbum.com/doityourself/batteries/batteries.htm
>
> Batteries stored below 59 F. self discharge *very* slowly, the colder the
> storage temperature, the slower.  Start with them fully charged and
> everything shut off and better yet a cable disconnected.
>
> Ken H.
>
>
> ___
>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
> use PayPal to send contribution --   https://www.paypal.me/stumurray
>
>
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Re: Stus-List Winter battery maintenance.

[Ken Heaton via CnC-List]

Stu has an article linked on the front page of the Photo Album: Surrette
Battery Co. Ltd. Bulletin #506 - Winter Storage

http://www.cncphotoalbum.com/doityourself/batteries/batteries.htm

Batteries stored below 59 F. self discharge *very* slowly, the colder the
storage temperature, the slower.  Start with them fully charged and
everything shut off and better yet a cable disconnected.

Ken H.

On Sun, 2 Dec 2018 at 06:59, dwight veinot via CnC-List <
cnc-list@cnc-list.com> wrote:

> If your batteries are good they will hold charge all winter long if you do
> as Robert on AZURA explained. Did i suggest you do it that way Robert?  If
> they don’t hold charge you can probably look forward to buying new
> batteries very soon. Consider it a test on your batteries: works every time
> but dont drop by occaisionaly during winter storage to charge them if you
> want a reliable test
>
> On Sat, Dec 1, 2018 at 5:19 PM Marek Dziedzic via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
>> I would not put a solar panel without a controller, even if it puts only
>> 1 A.
>>
>> Why? I murdered two batteries this way. My panel was 15 W, so hardly tons
>> of current, but each battery lasted just about a season. I thought that
>> spending extra $50 for a controller was a waste of money. I blamed the
>> batteries, but I learned since.
>>
>> Marek
>>
>> -Original Message-
>> From: CnC-List  On Behalf Of Len Mitchell
>> via CnC-List
>> Sent: Saturday, December 1, 2018 12:04
>> To: CNC List 
>> Cc: Len Mitchell 
>> Subject: Stus-List Winter battery maintenance.
>>
>> Not sure why no one has talked about a solar panel to keep batteries
>> topped up! Or did I miss something? The price just keeps getting lower and
>> they work well. Mine are always up and the boat is covered in canvas plus
>> snow. A small inexpensive panel will deliver 2 amps or less in the daylight
>> and won’t even require a controller at that charge rate. If your batteries
>> are being discharged or they aren’t strong enough, they can freeze. Check
>> specific gravity and electrolyte level yes!
>> Len
>>
>> Sent from my iPad
>> ___
>>
>> Thanks everyone for supporting this list with your contributions.  Each
>> and every one is greatly appreciated.  If you want to support the list -
>> use PayPal to send contribution --
>> https://nam03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.paypal.me%2Fstumurraydata=02%7C01%7C%7Ca67690fca0e2498e74a408d657af2b48%7C84df9e7fe9f640afb435%7C1%7C0%7C636792807180125612sdata=j593mYImrxf4aB2QjfK54JGKjFeJQG58gP%2BwCt2Ic3A%3Dreserved=0
>>
>> ___
>>
>> Thanks everyone for supporting this list with your contributions.  Each
>> and every one is greatly appreciated.  If you want to support the list -
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>> --
> Sent from Gmail Mobile
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> use PayPal to send contribution --   https://www.paypal.me/stumurray
>
>
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Re: Stus-List Winter battery maintenance.

[dwight veinot via CnC-List]

If your batteries are good they will hold charge all winter long if you do
as Robert on AZURA explained. Did i suggest you do it that way Robert?  If
they don’t hold charge you can probably look forward to buying new
batteries very soon. Consider it a test on your batteries: works every time
but dont drop by occaisionaly during winter storage to charge them if you
want a reliable test

On Sat, Dec 1, 2018 at 5:19 PM Marek Dziedzic via CnC-List <
cnc-list@cnc-list.com> wrote:

> I would not put a solar panel without a controller, even if it puts only 1
> A.
>
> Why? I murdered two batteries this way. My panel was 15 W, so hardly tons
> of current, but each battery lasted just about a season. I thought that
> spending extra $50 for a controller was a waste of money. I blamed the
> batteries, but I learned since.
>
> Marek
>
> -Original Message-
> From: CnC-List  On Behalf Of Len Mitchell
> via CnC-List
> Sent: Saturday, December 1, 2018 12:04
> To: CNC List 
> Cc: Len Mitchell 
> Subject: Stus-List Winter battery maintenance.
>
> Not sure why no one has talked about a solar panel to keep batteries
> topped up! Or did I miss something? The price just keeps getting lower and
> they work well. Mine are always up and the boat is covered in canvas plus
> snow. A small inexpensive panel will deliver 2 amps or less in the daylight
> and won’t even require a controller at that charge rate. If your batteries
> are being discharged or they aren’t strong enough, they can freeze. Check
> specific gravity and electrolyte level yes!
> Len
>
> Sent from my iPad
> ___
>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
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>
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>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
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>
> --
Sent from Gmail Mobile
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Re: Stus-List Winter battery maintenance.

[Marek Dziedzic via CnC-List]

I would not put a solar panel without a controller, even if it puts only 1 A. 

Why? I murdered two batteries this way. My panel was 15 W, so hardly tons of 
current, but each battery lasted just about a season. I thought that spending 
extra $50 for a controller was a waste of money. I blamed the batteries, but I 
learned since.

Marek

-Original Message-
From: CnC-List  On Behalf Of Len Mitchell via 
CnC-List
Sent: Saturday, December 1, 2018 12:04
To: CNC List 
Cc: Len Mitchell 
Subject: Stus-List Winter battery maintenance.

Not sure why no one has talked about a solar panel to keep batteries topped up! 
Or did I miss something? The price just keeps getting lower and they work well. 
Mine are always up and the boat is covered in canvas plus snow. A small 
inexpensive panel will deliver 2 amps or less in the daylight and won’t even 
require a controller at that charge rate. If your batteries are being 
discharged or they aren’t strong enough, they can freeze. Check specific 
gravity and electrolyte level yes! 
Len

Sent from my iPad
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Re: Stus-List Winter Battery Maintenance

[Dave via CnC-List]

Windstar has two parallel group 31 batteries as the house bank, and a single 
start battery with a 20a multi bank smart charger.
For winter I top up the electrolyte , and leave the shore power cable connected 
to the well-covered boat, coiled and hanging from the prop shaft.   Charger 
turned on.
Every month or so I emerge from hibernation and connect the boat overnight  to 
an outlet in the yard via a cheater cable to top up the batteries.
Seems to work fine.   Can anyone see any issue with this approach?

Thanks.
Dave - 
33-2 on the hard near Toronto.

Sent from my iPad

> On Nov 30, 2018, at 8:23 PM, dwight veinot  wrote:
> 
> Rob Abbott’s method works but in addition i recommend disconnecting the cable 
> from the positive terminal
> 
>> On Fri, Nov 30, 2018 at 3:32 PM robert via CnC-List  
>> wrote:
>> There is a marine contractor at our club, who also owns a boat, and who is 
>> very knowledgeable about proper boat maintenance and he leaves his batteries 
>> on his boat over our winters. he just gives them a full charge and turns 
>> the battery disconnect switch off. ..doesn't even disconnect everything 
>> from the battery itself.  He checks each cell to ensure the electrolyte 
>> is to the top of each plate and brings them to full charge.  
>> 
>> If the battery is in good condition with the acid of a specific gravity of 
>> around 1.260, the freezing temperature to do any harm to it would be colder 
>> than anything we might experience in North America.
>> 
>> 
>> Rob Abbott
>> AZURA
>> C 32 - #277
>> Halifax, N.S.
>> 
>> 
>>> On 2018-11-30 11:15 a.m., Raymond Macklin via CnC-List wrote:
>>> I have two batteries that I am looking for information on how to Maintain 
>>> my batteries over the winter.  What charger to purchase and process to 
>>> follow. Any information would be greatly appreciated.
>>> 
>>> Thanks,
>>> 
>>> Ray
>>> LakeHouse
>>> Milwaukee, WI
>>> 
>>> 
>>> ___
>>> 
>>> Thanks everyone for supporting this list with your contributions.  Each and 
>>> every one is greatly appreciated.  If you want to support the list - use 
>>> PayPal to send contribution --   https://www.paypal.me/stumurray
>>> 
>> 
>> ___
>> 
>> Thanks everyone for supporting this list with your contributions.  Each and 
>> every one is greatly appreciated.  If you want to support the list - use 
>> PayPal to send contribution --   https://www.paypal.me/stumurray
>> 
> -- 
> Sent from Gmail Mobile
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Re: Stus-List Winter Battery Maintenance

[dwight veinot via CnC-List]

Rob Abbott’s method works but in addition i recommend disconnecting the
cable from the positive terminal

On Fri, Nov 30, 2018 at 3:32 PM robert via CnC-List 
wrote:

> There is a marine contractor at our club, who also owns a boat, and who is
> very knowledgeable about proper boat maintenance and he leaves his
> batteries on his boat over our winters. he just gives them a full
> charge and turns the battery disconnect switch off. ..doesn't even
> disconnect everything from the battery itself.  He checks each cell to
> ensure the electrolyte is to the top of each plate and brings them to full
> charge.
>
> If the battery is in good condition with the acid of a specific gravity of
> around 1.260, the freezing temperature to do any harm to it would be colder
> than anything we might experience in North America.
>
>
> Rob Abbott
> AZURA
> C 32 - #277
> Halifax, N.S.
>
>
> On 2018-11-30 11:15 a.m., Raymond Macklin via CnC-List wrote:
>
> I have two batteries that I am looking for information on how to Maintain
> my batteries over the winter.  What charger to purchase and process to
> follow. Any information would be greatly appreciated.
>
> Thanks,
>
> Ray
> LakeHouse
> Milwaukee, WI
>
> ___
>
> Thanks everyone for supporting this list with your contributions.  Each and 
> every one is greatly appreciated.  If you want to support the list - use 
> PayPal to send contribution --   https://www.paypal.me/stumurray
>
>
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Re: Stus-List Winter Battery Maintenance

[Chuck S via CnC-List]

Had the boat fifteen years. I leave my batteries on the boat connected with 
everything switched off. I go to the boat at least once a month to connect a 
power cord that powers the charger and top them off while I check the cover and 
interior and work on projects. On the hard, I keep a power cord run through the 
speedo and simply plug it into a receptacle which powers the charger and a 
radio I leave turned on. If I hear that music playing while under the boat, I 
know she's charging and not have to even climb on the boat, maybe go to lunch 
or visit friends. I keep the cord coiled at the boat, not at the receptacle, so 
no one does me a favor and powers my boat when I'm not there.

I don't have refrigeration so I never leave the charger plugged in when I leave 
the boat, as I live 2 1/2 hrs away and that is an electrical hazzard I don't 
want to worry about. When I am at the boat, I plug in power and charge the 
batteries and run AC, TV, and lights, and fans. Before I leave, the ice box 
gets emptied and the seacocks closed and shorepower unplugged. The life of the 
batteries proves this method works well enough. My first set of AGM batteries 
bought when I got the boat; one lasted nine years, the other eleven.


> On November 30, 2018 at 10:41 AM robert via CnC-List  
> wrote:
> 
> Ray:
> 
> I have 2 Group 27's deep cyclenow 9 years old, and I leave them on 
> the boat over the winter with everything disconnected.   They get a full 
> charge in the Fall during layup bringing up to 6.2V to 6.4V.also check 
> the levels of the electrolyte (acid) and add distilled water if necessary 
> before charging.
> 
> For a few winters, I have left them this way without a charge until 
> Springin the Spring, they read 12.4V to 12.5V.   Most winters, I will 
> visit the boat and give the batteries a charge with a 6V charger.maybe an 
> hour on each battery.   Never an issue.
> 
> There is a permanent 'smart charger' on the boat but our club will not 
> permit an electrical connection to the boat if it is unattended, good policy 
> for obvious reasons, but being on a trickle charge all winter has not been 
> necessary .
> 
> Rob Abbott
> AZURA
> C 32 - #277
> Halifax, N.S
> 
> On 2018-11-30 11:15 a.m., Raymond Macklin via CnC-List wrote:
> 
> > > I have two batteries that I am looking for information on 
> how to Maintain my batteries over the winter.  What charger to purchase and 
> process to follow. Any information would be greatly appreciated.
> > 
> > Thanks,
> > .
> > Ray
> > LakeHouse
> > Milwaukee, WI
> > 
> > 
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> > Thanks everyone for supporting this list with your contributions.  
> > Each and every one is greatly appreciated.  If you want to support the list 
> > - use PayPal to send contribution --   https://www.paypal.me/stumurray
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> > 
> > > 
 

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Re: Stus-List Winter Battery Maintenance

[ALAN BERGEN via CnC-List]

Most important, do not use an automotive charger; use a marine charger. The
charger depends on the type of batteries you have - led acid, gel or AGM.
Some chargers will charge all three depending on the switch setting. I have
a charger mounted on my boat, and I keep it on whenever I'm in my slip, all
year long. If you don't have access to electricity, remove the batteries
from your boat, and store them in your heated garage till you're ready to
launch in the spring.

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



On Fri, Nov 30, 2018 at 7:16 AM Raymond Macklin via CnC-List <
cnc-list@cnc-list.com> wrote:

> I have two batteries that I am looking for information on how to Maintain
> my batteries over the winter.  What charger to purchase and process to
> follow. Any information would be greatly appreciated.
>
> Thanks,
>
> Ray
> LakeHouse
> Milwaukee, WI
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Re: Stus-List Winter Battery Maintenance

[Marek Dziedzic via CnC-List]

+1 on what Rob said.

If you charge the batteries now _and_ disconnect them form _everything_, they 
should last to spring without any problem. If they are healthy, they would keep 
the charge; if they are not, you have a different issue to deal with.

I used to take the batteries home and re-charge them every 4-6 weeks, but it is 
not necessary.

Marek
1994 C270 Legato
Ottawa, ON
From: robert via CnC-List
Sent: Friday, November 30, 2018 10:42
To: cnc-list@cnc-list.com
Cc: robert
Subject: Stus-List Winter Battery Maintenance

Ray:

I have 2 Group 27's deep cyclenow 9 years old, and I leave them on the boat 
over the winter with everything disconnected.   They get a full charge in the 
Fall during layup bringing up to 6.2V to 6.4V.also check the levels of the 
electrolyte (acid) and add distilled water if necessary before charging.

For a few winters, I have left them this way without a charge until 
Springin the Spring, they read 12.4V to 12.5V.   Most winters, I will visit 
the boat and give the batteries a charge with a 6V charger.maybe an hour on 
each battery.   Never an issue.

There is a permanent 'smart charger' on the boat but our club will not permit 
an electrical connection to the boat if it is unattended, good policy for 
obvious reasons, but being on a trickle charge all winter has not been 
necessary .

Rob Abbott
AZURA
C 32 - #277
Halifax, N.S

On 2018-11-30 11:15 a.m., Raymond Macklin via CnC-List wrote:
I have two batteries that I am looking for information on how to Maintain my 
batteries over the winter.  What charger to purchase and process to follow. Any 
information would be greatly appreciated.

Thanks,
.
Ray
LakeHouse
Milwaukee, WI



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