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Old 04-14-2016, 10:09 PM   #61
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What am I missing so far?
Perhaps you are missing an engine room monkey.
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Old 04-14-2016, 11:32 PM   #62
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What am I missing so far?
An alternative way to charge the genset batt.
What voltages did you get on the genset batt. Open circuit I know, but better than nothing.
I have an inexpensive batt voltage and load tester (Ebay), it (not Lucas) smokes when the load goes on.
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Old 04-14-2016, 11:59 PM   #63
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Perhaps you are missing an engine room monkey.
Most definitely!

Terminals are good. Reconnected the genset battery and still nothing. I am going to pronounce it dead. Now I need to find a group 31 battery tomorrow.

The current battery is a group 31. I didn't see anything in the Northern Lights manual on setting a charge profile in the alternator. Does it matter? I would prefer an AGM since all the other batteries are AGM. However since the genny charges its own Battery with its alternator it wouldn't matter. I just have to remember to check the electrolyte.

If I went with an AGM, what about an Optima Yellow top? Not a deep cycle, but the battery would be used only for starting.
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Old 04-15-2016, 12:18 AM   #64
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I get all my batts from Battery Plus store. Great batts, fair price, good service... at least in the one I frequent.
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Old 04-15-2016, 01:09 AM   #65
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Ok, I thought this was a group 31 battery. Now that I have wrestled it out of its hiding place, I think it may be a group 27 battery. It is 12v 100AH. I think it may be a sealed lead acid. Can't tell as all the markings are in Chinese. Definitely the original battery.
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Old 04-15-2016, 01:10 AM   #66
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What voltage are you getting off gen battery , with everything disconnected?
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Old 04-15-2016, 01:13 AM   #67
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I think it is there equivalent of a 4d.
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Old 04-15-2016, 02:31 AM   #68
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A sealed LA works as a start batt. My genset SLA, size (we call) 150AH (?= a 6D) per Onan Manual. Yours lasted 6 years, that`s ok, may have lasted longer if kept fully charged.
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Old 04-15-2016, 03:19 AM   #69
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What voltage are you getting off gen battery , with everything disconnected?
About 12

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I think it is there equivalent of a 4d.
Not as big as a 4d thank goodness.

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A sealed LA works as a start batt. My genset SLA, size (we call) 150AH (?= a 6D) per Onan Manual. Yours lasted 6 years, that`s ok, may have lasted longer if kept fully charged.
I was thinking that a sealed LA might work well. Also be a whole lot cheaper than AGM. This battery that I took out could be a sealed LA.
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Old 04-15-2016, 06:35 AM   #70
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A gen set will start easily with an M24 Starting type for a long time as long as the alternator works.
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Old 04-15-2016, 09:13 AM   #71
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Dave

"Sealed" LA Battery is BS Hype, pardon the phrase, but, promotion hungry advertiders on Masison Ave. want people to believe there is never water needed to be added to a "sealed" LA batt. Not true!

Although it does help batt sales when batts fail due to lack of water.

Fact that it is water borne acid in a batt means it HAS to vent during chargings! East Penn (good batts) is batt mfg for Batteries Plus chain of hundreds of stores. Their "sealed" LA batts have plastic strip on top that when peeled back reveals screw-on, vinyl gasket water holes for batt plates. I fill (top off to correct height in cells) my "sealed" batts with distilled water about once a year. They last 10 yrs. or longer no problem.

Happy Batt-Choice Daze - Art
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Old 04-15-2016, 10:41 AM   #72
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A gen set will start easily with an M24 Starting type for a long time as long as the alternator works.
I will look at that size as well. I don't want more battery than I need and the way the boat is setup, the genset battery can't be crosslinked to any other batteries, so as small as will work will be the best. It was a pain extricating the group 27 or 31 or whatever it is from its location as it was.

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Fact that it is water borne acid in a batt means it HAS to vent during chargings! East Penn (good batts) is batt mfg for Batteries Plus chain of hundreds of stores. Their "sealed" LA batts have plastic strip on top that when peeled back reveals screw-on, vinyl gasket water holes for batt plates. I fill (top off to correct height in cells) my "sealed" batts with distilled water about once a year. They last 10 yrs. or longer no problem.
Thanks Art. I wouldn't think that for this application they would gas much as the only charging is after the battery has started the generator and then it is just from its alternator. I should get back up to charge pretty quickly. Anytime the genset is running, there is going to be air exchange in the ER from the genset air intake. Not like a house bank that is being charged when the engine isn't running such as when plugged into shore power. I like the price. I can buy 2-3 sealed LA batteries for the price of an AGM.
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Old 04-15-2016, 10:50 AM   #73
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I will look at that size as well. I don't want more battery than I need and the way the boat is setup, the genset battery can't be crosslinked to any other batteries, so as small as will work will be the best. It was a pain extricating the group 27 or 31 or whatever it is from its location as it was.



Thanks Art. I wouldn't think that for this application they would gas much as the only charging is after the battery has started the generator and then it is just from its alternator. I should get back up to charge pretty quickly. Anytime the genset is running, there is going to be air exchange in the ER from the genset air intake. Not like a house bank that is being charged when the engine isn't running such as when plugged into shore power. I like the price. I can buy 2-3 sealed LA batteries for the price of an AGM.
Yup n' Yup!!

However, if you are planning to keep LA batt in good condition for many years (10 +)... better keep tabs on cell water levels. They will drop eventually. If kept up the batt-life should be much extended. I've a 12 yr old Interstate batt in pickup... still cranks like crazy... I keeps dem cells filled with distilled wtr.
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Old 04-15-2016, 11:10 AM   #74
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I keeps dem cells filled with distilled wtr.
In my case as I am inherently lazy, I used the distillate that came out of the dehumidifier. I had a hose that ran into a water bottle in the galley sink. It would fill, overflow and the excess would drain out of the boat. When I would get the boat I would check my wet cells and top them off with the water bottle, empty it and then repeat.

Now, I wouldn't use it for my wife's c-pap machine, but for wet cells it is good enough.
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Old 04-15-2016, 11:34 AM   #75
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In my case as I am inherently lazy, I used the distillate that came out of the dehumidifier. I had a hose that ran into a water bottle in the galley sink. It would fill, overflow and the excess would drain out of the boat. When I would get the boat I would check my wet cells and top them off with the water bottle, empty it and then repeat.
Now, I wouldn't use it for my wife's c-pap machine, but for wet cells it is good enough.
Sounds as though might be just fine. Gallon of distilled (with surely NO contaminants) sitting next to my batts is cheep to purchase every couple years. Fool proof and Ezzie Peezie too!!
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Old 04-15-2016, 06:36 PM   #76
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Ok, I ended up with a group 27 AGM. Installed and the genset runs fine.
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Old 04-15-2016, 06:44 PM   #77
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The genset battery got me to thinking about the other batteries, so I started to dig around. The engine start battery is a Lifeline 4d AGM. It is the only battery that has been change on this boat.

The house bank consists of 3 x 4D sealed LA batteries originally rated a at 200ah each. Since they are 6 years old, I don't expect them to last much longer.
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Old 04-15-2016, 07:07 PM   #78
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Ok, I ended up with a group 27 AGM. Installed and the genset runs fine.
Yea!
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Old 04-15-2016, 07:47 PM   #79
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Bloated fenders

Another rather silly and trivial issue.

The boat came with a set of Polyform HTM 3 fenders. The boat is also equipped with some basket type rail mounted fender holders. The fenders were never in the holders when we saw the boat. Now I know why.

The fenders don't fit in the baskets. The Polyvue HTM 3 fender is supposed to be 10.5" in diameter. The baskets are 12" in diameter. It appears as it the fenders have been over inflated and stretched out. I tried deflating one but it still wouldn't fit.

This happen to anyone else? Both the fenders and baskets are valuable and I would like to be able to use the baskets to get the fenders out of the way on deck. Any ideas?
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Old 04-15-2016, 08:26 PM   #80
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New fenders at 50 bucks a pop.
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