Another decent article on winter self-discharge can be found here: http://www.pbase.com/mainecruising/self_discharge .
Not on the C&C Photo Album site, but almost as good. Marek 1994 C270 ”Legato” Ottawa, ON From: CnC-List <cnc-list-boun...@cnc-list.com> On Behalf Of Ken Heaton via CnC-List Sent: Sunday, December 2, 2018 07:27 To: cnc-list <cnc-list@cnc-list.com> Cc: Ken Heaton <kenhea...@gmail.com> 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&data=02%7C01%7C%7C0e61a04c178b4ca5006708d658519483%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636793504730256677&sdata=AdPIX2%2Fu15cMhEr0CmuWKOa%2Fs%2FHA5Gu4A8q036M8gCo%3D&reserved=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 <cnc-list@cnc-list.com<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 <cnc-list@cnc-list.com<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 <cnc-list-boun...@cnc-list.com<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 <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> Cc: Len Mitchell <xfireca...@gmail.com<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 -- https://nam03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.paypal.me%2Fstumurray&data=02%7C01%7C%7Ca67690fca0e2498e74a408d657af2b48%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636792807180125612&sdata=j593mYImrxf4aB2QjfK54JGKjFeJQG58gP%2BwCt2Ic3A%3D&reserved=0<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.paypal.me%2Fstumurray&data=02%7C01%7C%7C0e61a04c178b4ca5006708d658519483%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636793504730256677&sdata=33VoVME3yIvVrvhtXQIVvNCALbrtz%2FMSOR5f3SadsNc%3D&reserved=0> _______________________________________________ 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<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.paypal.me%2Fstumurray&data=02%7C01%7C%7C0e61a04c178b4ca5006708d658519483%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636793504730256677&sdata=33VoVME3yIvVrvhtXQIVvNCALbrtz%2FMSOR5f3SadsNc%3D&reserved=0> -- Sent from Gmail Mobile _______________________________________________ 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<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.paypal.me%2Fstumurray&data=02%7C01%7C%7C0e61a04c178b4ca5006708d658519483%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636793504730256677&sdata=33VoVME3yIvVrvhtXQIVvNCALbrtz%2FMSOR5f3SadsNc%3D&reserved=0>
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