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battery tender during storage
- pepmyster
- Admiral
- Posts: 966
- Joined: June 5th, 2018, 7:17 am
- Vessel Info: 2004 Carver 360 Sport Sedan
8.1 Volvo Penta
Fresh water boating - Location: Ottawa
- Has thanked: 435 times
- Been thanked: 190 times
Re: battery tender during storage
- bud37
- Admiral
- Posts: 4677
- Joined: April 23rd, 2015, 10:22 pm
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Re: battery tender during storage
Back wont take hauling them in and out anymore........
- Midnightsun
- CYO Supporter
- Posts: 2838
- Joined: March 27th, 2016, 2:27 pm
- Vessel Info: The Midnight Sun
2007 41CMY
Volvo D6-370's - Location: Montreal, Canada
- Has thanked: 254 times
- Been thanked: 1095 times
Re: battery tender during storage
- pepmyster
- Admiral
- Posts: 966
- Joined: June 5th, 2018, 7:17 am
- Vessel Info: 2004 Carver 360 Sport Sedan
8.1 Volvo Penta
Fresh water boating - Location: Ottawa
- Has thanked: 435 times
- Been thanked: 190 times
Re: battery tender during storage
- bud37
- Admiral
- Posts: 4677
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Re: battery tender during storage
Midnightsun wrote:Source of the post Whats the deal with "case cleaning" Am I missing something, never seen a dirty case on a boat installation. Cars get nasty but boats?
You should have seen the batteries that came out of our boat after I bought it and for that matter almost every other one we have bought.....
While in normal use and charging cycles, batteries naturally off gas and small particles of acid solution lay on the battery tops, not visibly dirty just a very fine film. Like I said check the case top with a good meter. Not a real big deal but nevertheless exists and depending on the battery placement could lead to a parastic drain/corrosion issues if they get bad enough or there gets to be water/moisture up to the case bottoms.
Hans I am sure you will not have any of this as from what I have seen in your pics your boat is spotless... .
- Midnightsun
- CYO Supporter
- Posts: 2838
- Joined: March 27th, 2016, 2:27 pm
- Vessel Info: The Midnight Sun
2007 41CMY
Volvo D6-370's - Location: Montreal, Canada
- Has thanked: 254 times
- Been thanked: 1095 times
Re: battery tender during storage
-
- CYO Supporter
- Posts: 5803
- Joined: July 10th, 2015, 9:58 pm
- Vessel Info: 1989 Carver 3807 Aft Cabin
- Location: Ontario, Canada
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Re: battery tender during storage
pepmyster wrote:Source of the post All valide points. I know it's a pain, but, basically, the batteries sleep from Nov to May. That's a long sleep with-out getting a charge. Seen it too many times in cars where the car is not being used and not getting a trinkle charge, the battery becomes a paper weight....
Not trying to convince anybody one way or the other, just putting some information out there. I know what you mean with cars though, but seldom does the average Joe think of disconnecting car batteries even when a long term storage is planned. In that case, yes it's no wonder they wouldn't make it, totally different application and conditions though.
In our winter temps, providing they are disconnected, a battery's natural discharge rate slows right down to a negligible amount. At home under warmer conditions, yes one will find themselves topping up more often as they will discharge at a faster rate in warmer temps. Before the advent of smart chargers and maintainers, people were actually ruining their batteries by taking them home as they would simply plug them into an automotive charger, and usually forget about them, which lead to overcharging.
I remember the days when removing batteries out of all the boats marinas winterized was the norm. They would be brought into the shop or storage room where it was also common practice at the time to keep them all on charge. It was a service provided for extra income but those in the know knew it didn't make them last any longer. Man, I can remember walking into some of those rooms and litteraly have my eyes buring from the off-gassing! Even when they were properly monitored, it was no guarranty that they'd be fine for the following season. That caused more problems with customers than it was worth. After all, while it's no guarranty it would make them reach their expected lifespan, customers still expected that to be the case if they were paying for that service. In my experience though, the practice never increased the longevity of the batteries over and above those left in the boats. For this same reason, along with newer technologies, the trouble, and expense if you weren't on the ball, I seldom see a marina doing this now.
On a final note, if you can't sleep at night wondering about the condition of your batteries over the winter, don't get a boat with DTS engines. Having said that, it's the way the industry is going so you'll have little choice eventually. If batteries are disconnected for extended periods; our Canadian and northern US winters, you'll be paying a technician to reprogram all the settings every Spring, and I'm okay with that
- Midnightsun
- CYO Supporter
- Posts: 2838
- Joined: March 27th, 2016, 2:27 pm
- Vessel Info: The Midnight Sun
2007 41CMY
Volvo D6-370's - Location: Montreal, Canada
- Has thanked: 254 times
- Been thanked: 1095 times
Re: battery tender during storage
As for cars, they have no battery off switch and there is a constant albeit small drain all the time on the battery especially now since we have intelligent key fobs and remote starters. No way will a car survive a few months, lucky to make 6 weeks before you need a boost.
- pepmyster
- Admiral
- Posts: 966
- Joined: June 5th, 2018, 7:17 am
- Vessel Info: 2004 Carver 360 Sport Sedan
8.1 Volvo Penta
Fresh water boating - Location: Ottawa
- Has thanked: 435 times
- Been thanked: 190 times
Re: battery tender during storage
- Midnightsun
- CYO Supporter
- Posts: 2838
- Joined: March 27th, 2016, 2:27 pm
- Vessel Info: The Midnight Sun
2007 41CMY
Volvo D6-370's - Location: Montreal, Canada
- Has thanked: 254 times
- Been thanked: 1095 times
Re: battery tender during storage
One huge issue in the newer vehicles is the fob. Yes the BCM goes to sleep however when the fob is in range it stays awake because it thinks you are there and want to use the car. Most people do not know this like my dad who keeps his fob in the car. Good thing he knows how to use a battery charger. Same goes for garaged cars where one keeps the spare hanging on the wall or somewhere in the garage. Someone who is used to driving into their garage normally leave the keys in the car, this does not fair well any more. This is a decent article explaining the issue that all should be aware of. https://www.autoserviceprofessional.com ... ems?Page=2
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