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#1
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posted to rec.boats.cruising
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Hi
I bought the two Nautaulis deep cycle big batteries for 139. ea. Also the motomaster 10/2 amp automatic charger regurlarily 70. I have had the 2amp charger on one of the batteries for about 6 hours or 8 hours and little bubbling going on I can hear and the charger still is not changing from red light (charging) to green light (charged). Should I keep it on the 2am for longer? Batteries are only 1 week old from Canadian Tire and charger is also new. Is the bubbling a concern? It is not boiling over, but listening very close you can hear the bubbling. http://www.canadiantire.ca/AST/brows...%2BBattery.jsp http://www.canadiantire.ca/AST/brows...BCha rger.jsp Nobody at any of the branches could give me any real advice. I wanted to treat these batteries with kid gloves so they would last more than 4 years. Any advice or help would be greatly appreciated,,, thanks |
#2
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" Tuuk" wrote in
: I have had the 2amp charger on one of the batteries for about 6 hours or 8 hours and little bubbling going on I can hear and the charger still is not changing from red light (charging) to green light (charged). Should I keep it on the 2am for longer? Batteries are only 1 week old from Canadian Tire and charger is also new. Is the bubbling a concern? It is not boiling over, but listening very close you can hear the bubbling. Got a digital voltmeter? They're only $4 at the Chinese cheap tool stores and are very accurate. With the charger running, you should not see over 14.8VDC at the battery terminals. You must be awful close if it's bubbling loud enough to hear. Don't leave it on bubbling so you can hear... Modern batteries not being overcharged use almost no water over long periods of time. If you have to refill the battery very often, you're overcharging it. While you're foraging for a DVM, buy a temperature compensated hydrometer, not the cheap crap with the floating colored balls, one that has a real thermometer buried in a rubber housing from the NAPA store or where mechanics buy auto parts. That's the ONLY way to tell what condition your battery cells are in. When it's charged, the specific gravity, compensated for temperature of the electrolyte which is the only way to get an accurate reading, should be 1.270 sp gr. All the cells should be within .005 sp gr of each other. If you find a low cell, way off from the others...bad battery needs replacment under warranty. It does happen. Remember, batteries are only refilled with PURE DISTILLED WATER, not spring water, city water or that crap in the hose on the dock....(sigh) Distilled water is available at grocery stores to put in clothes irons. Make SURE it says STEAM DISTILLED, not just demineralized by pouring it through a cheap filter gadget. -- ----- Larry If a man goes way out into the woods all alone and says something, is it still wrong, even though no woman hears him? |
#3
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posted to rec.boats.cruising
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Hi Larry
Thanks for the reply and expertise,, I do not have a dvm or specific gravitity measurer. So I should shut it off now because it is lightly bubbling on the 2am charge because it has not reached the capacity point where the automatic shut off should have shut off. I tried it on an old 12v deep cycle and it did charge it quickly (maybe an hour) and green light came on. But these two new ones which are larger in size and weight are not shutting off the automatic charger yet. I am a bit reluctant to charge it in the 10amp. The folks at the C.T. told me to bring in the batteries and they will put a 30amp on them and have them topped up in minutes but I did some reading and that can't be too good for the deepcycle batteries. Without the dvm or hydrometer I cannot really do much as I will need to know the condition of battery and maximum charge coming off that charger. I will look for those tools, thanks "Larry" wrote in message ... " Tuuk" wrote in : I have had the 2amp charger on one of the batteries for about 6 hours or 8 hours and little bubbling going on I can hear and the charger still is not changing from red light (charging) to green light (charged). Should I keep it on the 2am for longer? Batteries are only 1 week old from Canadian Tire and charger is also new. Is the bubbling a concern? It is not boiling over, but listening very close you can hear the bubbling. Got a digital voltmeter? They're only $4 at the Chinese cheap tool stores and are very accurate. With the charger running, you should not see over 14.8VDC at the battery terminals. You must be awful close if it's bubbling loud enough to hear. Don't leave it on bubbling so you can hear... Modern batteries not being overcharged use almost no water over long periods of time. If you have to refill the battery very often, you're overcharging it. While you're foraging for a DVM, buy a temperature compensated hydrometer, not the cheap crap with the floating colored balls, one that has a real thermometer buried in a rubber housing from the NAPA store or where mechanics buy auto parts. That's the ONLY way to tell what condition your battery cells are in. When it's charged, the specific gravity, compensated for temperature of the electrolyte which is the only way to get an accurate reading, should be 1.270 sp gr. All the cells should be within .005 sp gr of each other. If you find a low cell, way off from the others...bad battery needs replacment under warranty. It does happen. Remember, batteries are only refilled with PURE DISTILLED WATER, not spring water, city water or that crap in the hose on the dock....(sigh) Distilled water is available at grocery stores to put in clothes irons. Make SURE it says STEAM DISTILLED, not just demineralized by pouring it through a cheap filter gadget. -- ----- Larry If a man goes way out into the woods all alone and says something, is it still wrong, even though no woman hears him? |
#4
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posted to rec.boats.cruising
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" Tuuk" wrote in message
... Hi Larry Thanks for the reply and expertise,, I do not have a dvm or specific gravitity measurer. So I should shut it off now because it is lightly bubbling on the 2am charge because it has not reached the capacity point where the automatic shut off should have shut off. I tried it on an old 12v deep cycle and it did charge it quickly (maybe an hour) and green light came on. But these two new ones which are larger in size and weight are not shutting off the automatic charger yet. I am a bit reluctant to charge it in the 10amp. The folks at the C.T. told me to bring in the batteries and they will put a 30amp on them and have them topped up in minutes but I did some reading and that can't be too good for the deepcycle batteries. Without the dvm or hydrometer I cannot really do much as I will need to know the condition of battery and maximum charge coming off that charger. I will look for those tools, thanks I don't think one charge like this would do much harm if you decide to have them do it. They're under warranty, right? Make sure you document when this is done, then if there's a problem, you've got some leverage. After, I would monitor the batteries condition closely for a few weeks, then check them regularly thereafter. -- "j" ganz @@ www.sailnow.com |
#5
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![]() "Capt. JG" wrote in message easolutions... The folks at the C.T. told me to bring in the batteries and they will put a 30amp on them and have them topped up in minutes but I did some reading and that can't be too good for the deepcycle batteries. I don't think one charge like this would do much harm if you decide to have them do it. Now's that's the voice of experience! Ignore any advice from this knucklehead he's blowing smoke from his ass. |
#6
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posted to rec.boats.cruising
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"Mac Donald" wrote in news:2tn979.6g0.19.1
@news.alt.net: "Capt. JG" wrote in message easolutions... The folks at the C.T. told me to bring in the batteries and they will put a 30amp on them and have them topped up in minutes but I did some reading and that can't be too good for the deepcycle batteries. I don't think one charge like this would do much harm if you decide to have them do it. Now's that's the voice of experience! Ignore any advice from this knucklehead he's blowing smoke from his ass. Mac? Don't you have 4 500A alternators in parallel so you can charge the house batteries in 5 minutes, like some boats I know?....(c;] (It's not funny...I actually saw one like this!....with kids aboard going offshore!) -- ----- Larry If a man goes way out into the woods all alone and says something, is it still wrong, even though no woman hears him? |
#7
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posted to rec.boats.cruising
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Capt. JG wrote:
" Tuuk" wrote in message ... Hi Larry Thanks for the reply and expertise,, I do not have a dvm or specific gravitity measurer. So I should shut it off now because it is lightly bubbling on the 2am charge because it has not reached the capacity point where the automatic shut off should have shut off. I tried it on an old 12v deep cycle and it did charge it quickly (maybe an hour) and green light came on. But these two new ones which are larger in size and weight are not shutting off the automatic charger yet. I am a bit reluctant to charge it in the 10amp. The folks at the C.T. told me to bring in the batteries and they will put a 30amp on them and have them topped up in minutes but I did some reading and that can't be too good for the deepcycle batteries. Without the dvm or hydrometer I cannot really do much as I will need to know the condition of battery and maximum charge coming off that charger. I will look for those tools, thanks I don't think one charge like this would do much harm if you decide to have them do it. They're under warranty, right? Make sure you document when this is done, then if there's a problem, you've got some leverage. After, I would monitor the batteries condition closely for a few weeks, then check them regularly thereafter. Actually, the Amperage is of secondary importance, even though every charger is identified by its max current output. The important thing is the Voltage. If the charger is gentle (or intelligent) it will keep the Voltage at a level that's appropriate for the state of the battery. Your 100 Amp-hour batteries can accept about 20-25 Amps as long as the charger start tapering off the charge as it gets past about 85-90%. If it is really putting in 30 Amps, then the Voltage is probably too high, and the batteries will start gassing. (An undersized charger will likely not be able to hold the Voltage high on a discharged battery.) Of course then you have to figure out whether your CT man is just some bozo who is BS'ing you while he trashes your battery, or a professional who knows exactly how much the battery can handle and will monitor it carefully so that no damage is done. Worse, you have to figure out if that already happened while the battery was sitting in the store all winter. This unfortunately is a "crap shoot" but I try to maximize my odds by getting new batteries as part of the Spring shipment to a golf cart vendor. |
#8
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posted to rec.boats.cruising
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" Tuuk" wrote in
: I tried it on an old 12v deep cycle and it did charge it quickly (maybe an hour) and green light came on. But these two new ones which are larger in size and weight are not shutting off the automatic charger yet. I am a bit reluctant to charge it in the 10amp. The folks at the C.T. told me to bring in the batteries and they will put a 30amp on them and have them topped up in minutes but I did some reading and that can't be too good for the deepcycle batteries. Yes, by all means take them to some dunderheads who think they can recharge batteries in 30 minutes flat. How horrible most are. Boaters typically charge the house batteries for 20 minutes at full current, thinking wrongly they are recharging them....They're not. 10A charging is fine. Huge batteries take forever to charge on 2A, of course assuming they're discharged. I can't imagine 2A bubbling anything not fully charged. Are you SURE there's no loads, at all, on this tiny charger? Aren't these batteries also hooked to the house circuit? -- ----- Larry If a man goes way out into the woods all alone and says something, is it still wrong, even though no woman hears him? |
#9
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posted to rec.boats.cruising
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"Larry" wrote in message
... " Tuuk" wrote in : I have had the 2amp charger on one of the batteries for about 6 hours or 8 hours and little bubbling going on I can hear and the charger still is not changing from red light (charging) to green light (charged). Should I keep it on the 2am for longer? Batteries are only 1 week old from Canadian Tire and charger is also new. Is the bubbling a concern? It is not boiling over, but listening very close you can hear the bubbling. Got a digital voltmeter? They're only $4 at the Chinese cheap tool stores and are very accurate. With the charger running, you should not see over 14.8VDC at the battery terminals. You must be awful close if it's bubbling loud enough to hear. Don't leave it on bubbling so you can hear... Modern batteries not being overcharged use almost no water over long periods of time. If you have to refill the battery very often, you're overcharging it. While you're foraging for a DVM, buy a temperature compensated hydrometer, not the cheap crap with the floating colored balls, one that has a real thermometer buried in a rubber housing from the NAPA store or where mechanics buy auto parts. That's the ONLY way to tell what condition your battery cells are in. When it's charged, the specific gravity, compensated for temperature of the electrolyte which is the only way to get an accurate reading, should be 1.270 sp gr. All the cells should be within .005 sp gr of each other. If you find a low cell, way off from the others...bad battery needs replacment under warranty. It does happen. Remember, batteries are only refilled with PURE DISTILLED WATER, not spring water, city water or that crap in the hose on the dock....(sigh) Distilled water is available at grocery stores to put in clothes irons. Make SURE it says STEAM DISTILLED, not just demineralized by pouring it through a cheap filter gadget. I agree with this... I'd be very concerned about bubbling and temp rise. I've never been able to actually hear any bubbling, although small bubbles do form and I can see them if I take a look. Make sure everything is OFF (and I mean EVERYTHING) and wear eye protection if you decide to open the fill holes. Obviously, you want to ensure nothing metal comes in contact with the terminals. A friend of my father's died from a car battery explosion. I'd turn off everything, get a volt meter, and try again. Check the water level before you restart the charging, and if it's low, I'd be even more concerned. -- "j" ganz @@ www.sailnow.com |
#10
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What about leaving the charger on overnight?
The battery hasn't shut off the 2amp automatic charger yet and its only been about 8 hours. Could or should i try leaving it on the 2amp auto off, sure it is light bubbling as i can hear it, and see what it looks like in the morning. If battery light shows red and continuing charge, then return the batteries and charger to C.T. and explain and have them test and replace as necessary as this is simply normal operations and they said do it anyway. If battery light shows green then all should be good to go. I just worry about hearing the light bubbling and know it would go on all night. I read somewhere the bubbling wasn't good for the deepcycle plates and reduces their efficiencies and capacity. I gots to know. "Capt. JG" wrote in message easolutions... "Larry" wrote in message ... " Tuuk" wrote in : I have had the 2amp charger on one of the batteries for about 6 hours or 8 hours and little bubbling going on I can hear and the charger still is not changing from red light (charging) to green light (charged). Should I keep it on the 2am for longer? Batteries are only 1 week old from Canadian Tire and charger is also new. Is the bubbling a concern? It is not boiling over, but listening very close you can hear the bubbling. Got a digital voltmeter? They're only $4 at the Chinese cheap tool stores and are very accurate. With the charger running, you should not see over 14.8VDC at the battery terminals. You must be awful close if it's bubbling loud enough to hear. Don't leave it on bubbling so you can hear... Modern batteries not being overcharged use almost no water over long periods of time. If you have to refill the battery very often, you're overcharging it. While you're foraging for a DVM, buy a temperature compensated hydrometer, not the cheap crap with the floating colored balls, one that has a real thermometer buried in a rubber housing from the NAPA store or where mechanics buy auto parts. That's the ONLY way to tell what condition your battery cells are in. When it's charged, the specific gravity, compensated for temperature of the electrolyte which is the only way to get an accurate reading, should be 1.270 sp gr. All the cells should be within .005 sp gr of each other. If you find a low cell, way off from the others...bad battery needs replacment under warranty. It does happen. Remember, batteries are only refilled with PURE DISTILLED WATER, not spring water, city water or that crap in the hose on the dock....(sigh) Distilled water is available at grocery stores to put in clothes irons. Make SURE it says STEAM DISTILLED, not just demineralized by pouring it through a cheap filter gadget. I agree with this... I'd be very concerned about bubbling and temp rise. I've never been able to actually hear any bubbling, although small bubbles do form and I can see them if I take a look. Make sure everything is OFF (and I mean EVERYTHING) and wear eye protection if you decide to open the fill holes. Obviously, you want to ensure nothing metal comes in contact with the terminals. A friend of my father's died from a car battery explosion. I'd turn off everything, get a volt meter, and try again. Check the water level before you restart the charging, and if it's low, I'd be even more concerned. -- "j" ganz @@ www.sailnow.com |
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