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#1
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July 19th - Doin' the Charleston
We pulled into the Charleston area early in the morning after an absolutely marvelous sail. Lydia had gone down to sleep after letting me sleep longer than the expected midnight change, and in return, I kept at it until past dawn and our entrance. That sleep deprivation would come back to haunt me later, as the out of sequence posting demonstrated a few days ago. We got Larry on the phone and were directed to a special entrance we'd missed both when looking at the electronic and paper charts of the area. We were also directed to the City Marina as necessary for us to accomplish what might be refrigeration repair (more difficult for a service person to dinghy out), electrical troubleshooting, instrument repairs and the like. As much as it's against my religion and our budget, we bit the bullet and signed up for the Franklin plus daily fees to be at the (very VERY long dock - the MegaDock, where the big guys park) end of the outside floating dock. Larry had his hand-held VHF radio with him and was able to hear our traffic with the control for docking and thus was waiting for us when we landed. We quickly connected to shore power and commenced to troubleshooting while Lydia went off to discover who she'd chat up in THIS marina (if you let her off the boat, she's gone for hours, as there isn't anyone she meets who doesn't turn into a conversation, some of which involve geneology, let alone hail-fellow-well-met). We quickly determined that we weren't getting nearly enough power to the batteries which appeared to be OK, but very low. Larry's first supposition was that the batteries were dead, but futher digging showed that the charger wasn't putting out anything like the 70 amps it was rated for. Out come the manuals and to cut it short, the charger and its controller were fried, literally (see gallery pix). So, the first order of business, as long as we're on someone else' (expensive - a surcharge of $6 per day) electricity, we need to get something to accelerate the charging, so it's off to West Marine. New charger installed, we're topping up the batteries. To do our tests, we've turned on everything we can find to generate lots of load. If our charger is up to the task, it should shoulder all the load and have some left over. However, as we put all that we can find into the system's load, it turns out that it's high enough to take all the charger has to offer. As it's a relatively small charger, that's not really surprising - we have lots of time when connected to regular 110V power, so it's not worrying. However... Then, while it's working, we check the alternator (the busy thing on the engine which is supposed to not only supply the electrical needs while operating, but have lots left over to bring the battery up to cover the non-running times' consumption. We'd assumed we had high output alternators based on the markings on at least one of our spares. NOT! Just like the case marking sez, they're suitable for charging the starting battery, and nothing else. No wonder we've got low power. We've been assuming all along that our alternator was not only keeping up with the running load, but could easily cover other loads (like this computer!) as well. Instead, we've been steadily sucking out the supply, rendering us nearly bankrupt in power terms. (You look at a boat's electrical system like income and spending, with the bank - except it can't be filled beyond a certain point - supplying the extra, such as drawing from your savings. We were making far less than we were spending, and our "bank account" - the battery bank - was nearly empty...) It does its thing overnight - so, now it's the 20th. More working in the engine room. As it's cooled down a bit, I go in with one of the two spare alternators I have, and change it out, on the thought that perhaps the one which has been on the engine since we bought it was somehow defective. Ever hopeful, perhaps this one is 70 amps? Nope. Same basic output. If we load up everything possible at the same time, it's more than the alternator can supply, let alone fill the battery with the excess. All this alternator testing makes for a very hot engine compartment, and heats the rest of the boat. Our marvelous extraction fans do a great job of pulling the hot air out of the engine room, but are awfully hungry for electricity to feed them. As we're trying desperately to charge up the batteries, that's not a good thing. So, I continue to work on in the heat. Making it worse, I got only a few hours of sleep last night, as we were up until the wee hours. Tonight's no different - I was so out of it from the heat and lack of sleep that I posted our third day of the trip before the second! So, we'll continue this saga at a later time. In the meantime, it's been great to actually meet the guy with whom we've been corresponding, skyping (internet telephone, with pictures, sometimes, even), phoning and otherwise picking his brain. Later, we'll do some basic touring, but save the high activity levels for our return trip when we're not trying to get to NYC. L8R Skip Morgan 461 #2 SV Flying Pig KI4MPC See our galleries at www.justpickone.org/skip/gallery ! Follow us at http://groups.google.com/group/flyingpiglog and/or http://groups.yahoo.com/group/TheFlyingPigLog "You are never given a wish without also being given the power to make it come true. You may have to work for it however." (and) "There is no such thing as a problem without a gift for you in its hands. You seek problems because you need their gifts." (Richard Bach, in The Reluctant Messiah) |
#2
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On Jul 23, 8:32 am, Skip Gundlach wrote:
July 19th - I go in with one of the two spare alternators I have, and change it out, on the thought that perhaps the one which has been on the engine since we bought it was somehow defective. Ever hopeful, perhaps this one is 70 amps? Nope. Same basic output. If we load up everything possible at the same time, it's more than the alternator can supply, let alone fill the battery with the excess. Skip............. just how many amps do you use in a day?!?!!!!? Bob |
#3
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posted to rec.boats.cruising,rec.boats.building
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On Jul 23, 12:59 pm, Bob wrote:
On Jul 23, 8:32 am, Skip Gundlach wrote: July 19th - I go in with one of the two spare alternators I have, and change it out, on the thought that perhaps the one which has been on the engine since we bought it was somehow defective. Ever hopeful, perhaps this one is 70 amps? Nope. Same basic output. If we load up everything possible at the same time, it's more than the alternator can supply, let alone fill the battery with the excess. Skip............. just how many amps do you use in a day?!?!!!!? Bob Hi, Bob, We don't yet know. We're gong to do an energy audit, prolly tomorrow, to see just exactly how much each item uses. However, the root of the problem was twofold. We didn't have an effective shore power charger, for some extended period of time (we don't know how long, as it was just discovered). That meant that we were being profligate with our 12V ashore and at the dock, and running our entire, or a major part of the, load, on just the solar and wind. At the dock and at the stands, that was pretty low as compared to being out in the briny. The second problem was that, as we were motoring for most of this trip, and assuming we had plenty of amps to use pretty much whatever we wanted while motoring, in fact, either the belt was slipping and/or the alternator was not putting out enough to replace the amps being used and recharging that which was being taken otherwise. So, for a long time, and in particular in the last week, our batteries have been in severe deficit. However, they're now up to snuff, the shorepower charger does a great job in keeping up and dumping power into the battery, and the wind and solar are now again making meaningful contributions to our overall operation. We're taking all the alternators to be tested tomorrow; if they aren't up to snuff (the one I'd just put on didn't put out at all), we're in for new alternators of higher output. I've got responses from several sources about the means to achieve that in the same mounting as I have, so I'm hopeful we'll be fine about it. Once we've proven our charging sources, we'll go on the hook and prove our ability to live in our budget. Of course, in the end, it's pretty simple. We modify our lifestyle to accommodate our electrical income. If we can't make it work, we'll break out the Honda genset. If we find we use that all the time, we'll figure out some means to make it reasonable to do so. We planned on using it regularly, in any event, for powering our hookah rig, so I'm currently looking for something which won't outgas to hold the gasoline, as it uses straight, vs our outboards which are 2 cycle, and, in particular, doesn't use much of it, so we'll have small usage and some storage issues. Thanks for the interest. Stay tuned in the coming posts about our actual resolutions... L8R Skip Morgan 461 #2 SV Flying Pig KI4MPC See our galleries at www.justpickone.org/skip/gallery ! Follow us at http://groups.google.com/group/flyingpiglog and/or http://groups.yahoo.com/group/TheFlyingPigLog "You are never given a wish without also being given the power to make it come true. You may have to work for it however." (and) "There is no such thing as a problem without a gift for you in its hands. You seek problems because you need their gifts." (Richard Bach, in The Reluctant Messiah) L8R Skip Morgan 461 #2 SV Flying Pig KI4MPC See our galleries at www.justpickone.org/skip/gallery ! Follow us at http://groups.google.com/group/flyingpiglog and/or http://groups.yahoo.com/group/TheFlyingPigLog "You are never given a wish without also being given the power to make it come true. You may have to work for it however." (and) "There is no such thing as a problem without a gift for you in its hands. You seek problems because you need their gifts." (Richard Bach, in The Reluctant Messiah) |
#4
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Skip Gundlach wrote:
We don't yet know. We're gong to do an energy audit, prolly tomorrow, to see just exactly how much each item uses. Add battery capacity, any way you can, it solves a lot of problems including poor alternator performance. Lew |
#5
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On Jul 23, 8:45 pm, Lew Hodgett wrote:
Skip Gundlach wrote: We don't yet know. We're gong to do an energy audit, prolly tomorrow, to see just exactly how much each item uses. Add battery capacity, any way you can, it solves a lot of problems including poor alternator performance. Lew There is another path............. reduce load = smaller house bank, smaller battery charger, smaller alt, less engine running, quiter, cooler, also less things to fix! Bigger aint always better. My 400 Ah house bank is huge............... for me ![]() |
#6
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Bob wrote:
There is another path............. reduce load = smaller house bank, smaller battery charger, smaller alt, less engine running, quiter, cooler, also less things to fix! Bigger aint always better. My 400 Ah house bank is huge............... for me ![]() As long as you remember that you must replace 125AH for every 100AH consumed and the max sustained recharge rate is 15% of the battery bank AH capacity. Being realistic, over time, electrical consumption will increase, not decrease. These days, minimalists are few and far between. Lew |
#7
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On Jul 23, 11:21 pm, Lew Hodgett wrote:
Bob wrote: Bigger aint always better. These days, minimalists are few and far between. Lew Hi Lew: I must agree sadly with you. In my 20s I sported about the west coast on my Norton motorcycle. It was basically two tyres, a frame, and two cylinders. Light, fast, and easy to fix cause everything was right there. I just could not understand other riders who zoomed past with full dress Honda lead wings, huge faring, fiberglass saddle bag condos, AND pulling a trailer. I think there was a mortycycle under all that ****. Sorta defeated the purpose of a motorcycle I thought. Christ, they reportedly even had a reverse gear !?! But they seemed to be having fun............ I wonder what I can fix for lunch since I don't have a refer............. oh yes, boiled pasta cabbage, carrots, some unions peanut sauce fish sauce Squeeze of lime some wonderful red chili sauce with that rooster on the bottle. And a nice glass of tea Umm........ fresh crunchy............ AND NO REFER ! After lunch ? Since I don't need to install another alternator or write a daily 1000 word blog I think Ill bike over to the library and flirt with woman in the children's section. She's way cute.................. Bob |
#8
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On Jul 23, 8:00 pm, Skip Gundlach wrote:
On Jul 23, 12:59 pm, Bob wrote: Hi Skip: Do you have a way to determin a battery's level of charge? Battery Monitor? Hydrometer? Bob |
#9
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On Jul 24, 5:46 am, Bob wrote:
On Jul 23, 8:00 pm, Skip Gundlach wrote: On Jul 23, 12:59 pm, Bob wrote: Hi Skip: Do you have a way to determin a battery's level of charge? Battery Monitor? Hydrometer? Bob Somehow I think Skip would prefer to spend time writing lengthy cruising blogs, than learning about S.G. levels... =) cheers, Pete. |
#10
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On Tue, 24 Jul 2007 03:00:33 -0000, Skip Gundlach
wrote: On Jul 23, 12:59 pm, Bob wrote: On Jul 23, 8:32 am, Skip Gundlach wrote: July 19th - I go in with one of the two spare alternators I have, and change it out, on the thought that perhaps the one which has been on the engine since we bought it was somehow defective. Ever hopeful, perhaps this one is 70 amps? Nope. Same basic output. If we load up everything possible at the same time, it's more than the alternator can supply, let alone fill the battery with the excess. Skip............. just how many amps do you use in a day?!?!!!!? Bob Hi, Bob, We don't yet know. We're gong to do an energy audit, prolly tomorrow, to see just exactly how much each item uses. However, the root of the problem was twofold. We didn't have an effective shore power charger, for some extended period of time (we don't know how long, as it was just discovered). That meant that we were being profligate with our 12V ashore and at the dock, and running our entire, or a major part of the, load, on just the solar and wind. At the dock and at the stands, that was pretty low as compared to being out in the briny. The second problem was that, as we were motoring for most of this trip, and assuming we had plenty of amps to use pretty much whatever we wanted while motoring, in fact, either the belt was slipping and/or the alternator was not putting out enough to replace the amps being used and recharging that which was being taken otherwise. So, for a long time, and in particular in the last week, our batteries have been in severe deficit. However, they're now up to snuff, the shorepower charger does a great job in keeping up and dumping power into the battery, and the wind and solar are now again making meaningful contributions to our overall operation. We're taking all the alternators to be tested tomorrow; if they aren't up to snuff (the one I'd just put on didn't put out at all), we're in for new alternators of higher output. I've got responses from several sources about the means to achieve that in the same mounting as I have, so I'm hopeful we'll be fine about it. Once we've proven our charging sources, we'll go on the hook and prove our ability to live in our budget. Of course, in the end, it's pretty simple. We modify our lifestyle to accommodate our electrical income. If we can't make it work, we'll break out the Honda genset. If we find we use that all the time, we'll figure out some means to make it reasonable to do so. We planned on using it regularly, in any event, for powering our hookah rig, so I'm currently looking for something which won't outgas to hold the gasoline, as it uses straight, vs our outboards which are 2 cycle, and, in particular, doesn't use much of it, so we'll have small usage and some storage issues. Thanks for the interest. Stay tuned in the coming posts about our actual resolutions... L8R Skip Morgan 461 #2 SV Flying Pig KI4MPC See our galleries at www.justpickone.org/skip/gallery ! Follow us at http://groups.google.com/group/flyingpiglog and/or http://groups.yahoo.com/group/TheFlyingPigLog "You are never given a wish without also being given the power to make it come true. You may have to work for it however." (and) "There is no such thing as a problem without a gift for you in its hands. You seek problems because you need their gifts." (Richard Bach, in The Reluctant Messiah) L8R Skip Morgan 461 #2 SV Flying Pig KI4MPC See our galleries at www.justpickone.org/skip/gallery ! Follow us at http://groups.google.com/group/flyingpiglog and/or http://groups.yahoo.com/group/TheFlyingPigLog "You are never given a wish without also being given the power to make it come true. You may have to work for it however." (and) "There is no such thing as a problem without a gift for you in its hands. You seek problems because you need their gifts." (Richard Bach, in The Reluctant Messiah)to your system. Skip, I strongly suggest that you get a digital voltmeter with at least one decimil place readout and wire it into your system. Use a selector switch so that you can read the voltage of any battery bank. It is priceless for monitoring what is going on with the electrons. The one I have is a LED readout so it is easy to see at night. You can use it to check everything - charging? It will climb up to about 14.4 volts and then drop off to about 13.6, or if you are using a manual charger you can monitor voltages and switch the charger at the appropriate time. How much power are your nav lights using just switch them on and check the voltage. Ho! Ho! Turned the lights on and the voltage driopped 0.1 volts at 12.7 volts. A little math and you know how much power yout lights draw. Bruce in Bangkok (brucepaigeATgmailDOTcom) |
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