Upon retiring from the U. As the owner of RV Education he has spent the last 20 plus years educating millions of RV consumers on how to properly and safely use and maintain their RV, through RV Education 's vast offerings of RV training material. His latest endeavor is updating their older RV online training program into what you see here; the most comprehensive and complete online RV training program available anywhere, at an extremely affordable cost to the consumer.
A few simple preventive maintenance steps can extend the life of your RV batteries. The coupon code you entered is expired or invalid, but the course is still available! Your Instructor Mark J. Chapter 2 - Battery Types Available in days. Frequently Asked Questions When does the course start and finish?
The course starts now and never ends! It is a completely self-paced online course - you decide when you start and when you finish. How does lifetime access sound? After enrolling, you have unlimited access to this course for as long as you like - across any and all devices you own. Just checked on them after a long spell of sub-zero F temps, and they're fine. My batteries are size 4D, weighing in at lbs each. Once on the hard it would be a serious safety issue to try to manhandle them onto the rear platform and then down a ladder.
But, when I look around my marina, other marinas and harbors in the area, and talk to sailing friends, I hear a lot about 36 to 42 foot boats. So, in my case its a twenty year old Catalina , and with friends its 36 to 42 foot Beneteaus and Catalinas with the occasional newer model Tartan and Saber.
My own projects which I do myself include rigging replacements, new electronics, new cabin sole, wiring upgrades, solar panel installation, etc.
I'm finding less and less in PS, great concept though it is, that apply to me. This re-post of an older battery article just reinforced that PS is standing still. Are you kidding? This article is atrocious! There is absolutely no advantage to storing batteries on wood. Hasn't been for a long, long, long time; ever since battery cases have been made of rubber or plastic, certainly for as long as I've been alive.
There is far more risk to person and vessel, slugging batteries on an off a boat, vs just leaving them in place, topped up, fully charged, and after passing load test, negative terminals disconnected. Leaving batteries on a charger is not good practice. The regular shore power charger or larger solar charger system should not be left connected.
In the highly unlikely event of a battery short on a high capacity charger, thermal runaway and a boat fire could occur. Leaving a charger unattended on the boat over the winter may violate marina rules and regs and your boat insurance policy. Just because one has gotten away with bad practice for a length of time, doesn't make it good practice, just because the boat hasn't burned Attempting to move batteries needlessly can result in: 1. Personal injury - back, hernia, falling off a ladder while trying to manhandle batteries, slipping on a dock, dropping on a toe, splashing spilled electrolyte in eyes and on skin.
Property damage - drop a battery and floors, woodwork, or fibreglass can be damaged, carpets can be damaged by spilled electrolyte boat or car , broken battery casing.
If one hasn't suffered damage or injury taking them off the boat, well, there's always the chance when loading them into the house from the trunk, or when loading them back into the car, or back onto the boat. Total Nonsense! Another reason for leaving batteries aboard is if one should want to do anything requiring lights or power during the off-season, like maybe for doing some maintenance.
The author of the article above is so ill-informed, this should never have been published and should be removed. It is an embarrassment to Practical Sailor, a laugh to anyone who knows anything about batteries, and is a disservice to anyone who doesn't. I can only reinforce the comments above regarding the old wives' tales about storing batteries off-boat and concrete floors. After 35 years of on-board storage of fully charged and properly filled batteries over 5 months of cold Canadian winters on the north shore of Lake Ontario I've not been disappointed with discharged or freeze-damaged cells in the spring.
As for the wood-on-concrete storage!!! Lets get rid of that myth forever. Neither a cold block of wood nor a cold concrete floor will contribute to a healthy charged battery. For sure I'm not speaking from experience in that regard, because I have never off-loaded batteries and as I age, I'm not likely to start doing so.
Serving as a knowledgeable resource to my technophobe neighbours, I would also suggest that most spring-time battery problems are purely poor maintenance or aspirational optimism; i. Solar trickle charging will keep your batteries at full charge and will avoid sulfation.
I'm using a cheap panel from Harbor Freight which while not suitable for cruising is good enough for the winter layup. Using a shore charger, even a big one, may take hours to bring the house batteries to full charge as the charging rate slows as the battery reaches full charge. Leaving a battery partially charged for long periods causes sulfation as reported in other PS articles and kills batteries. That is why a trickle charger continuously connected is better than a once a month top up.
A trickle charger is needed even if you take the batteries home. If you don't have a trickle charger, then the battery cables should be disconnected to avoid any small parasitic loads that are common on boats. AGM batteries self-discharge at a much lower rate than wet cells. This article is a black eye for PS The writer is not well informed. On another matter I was shocked to read about Saga and Allan Poole. The Saga was a a piece of.
Car and Deep Cycle Battery FAQ, Battery Manufacturers and Brand Names List, and
Too bad Bob Perry put his name on it! You need to do your home work. Owners will tell you how great the boat was because they want to sell you the boat. You might also question why Allan Poole has earned such a bad reputation. You may find this offensive, but it is honest. I have always counted on Practical Sailor to provide objective, science based, tested information but that doesn't appear to be the case for this article.
A fully charged lead acid battery at or near 1.
Deep Cycle Battery Maintenance | U.S. Battery | Since
As cold as C in my case on Georgian Bay. A charged lead acid battery will self discharge far less in cold temperature than in warm or hot conditions. I heartily endorse the reference to Mainesail's testing that another commenter referenced below. Although I think there is a good amount of data, both real Mainesails's write up and anecdotal my experience and that of other commenters supporting leaving batteries in place over the winter, perhaps this is a topic that could be scientifically evaluated by cold climate contributors for Practical Sailor in a future article.
In the mean time, it may be prudent to remove this article and related links to maintain PS's otherwise good reputation for fact based data on sailing equipment and maintenance practices.
Hi my name is Mark Polk
Removing them is a Herculean task, so I have always charged them to full capacity, disconnected all terminals, and let them lie in the boat, which is stored covered and on the hard each winter. So far, so good. I am hoping to find around Posted by: tomsailscssc gmail. Wrestle 's of pounds of batteries out of boat for no reason and store on blocks of wood Who's writing these? For actual empirical data on battery discharge over the winter months and how batteries should be stored: www. Looks like you've included some of the old wives' tail precautions putting the batteries on a block of wood off the concrete.
The best thing foe long term storage of batteries is cold. They do not discharge as fast. As temps usually stay below freezing through the winter on western Lake Superior, my batteries never need charging when kept on the boat on the hard and after more than 3 years, still have No backaches or hernias lifting batteries on and off the boat, either.