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#1
posted to rec.boats
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Gonna change the oil
JimH,
This is exactly what I need, it uses one tenth the power of a 12 volt bulb. I saw that there were some all around LED lights to replace the 12 volt bulbs, but they were substantially more expensive, and only saved 1/2 the power. I forgot to mention that the Gel Deep Cycle battery also powered the refrigerator, so that is probably why it always died during the night. " JimH" wrote in message ... "Reggie Smithers" wrote in message ... JimH, I have a deep cycle gel battery, When I use my anchor light, it has never made it through the night without being completely discharged. Is this normal? " JimH" wrote in message ... "Eisboch" wrote in message ... " JimH" wrote in message ... "Bill McKee" wrote in message .net... "Eisboch" wrote in message news 
wrote in message ups.com... First version, otherwise why use 6 resistors instead of one single lower ohmage one of higher power. I was trying to roughly calculate the power requirements. You said 600 ohm resistors, correct? The voltage drop on the LED will be minimal when forward biased or "on", so each branch must be about .02 amps, times six equals .12 amps, so the power must be about 12v times .12 or about 1.4 watts. Probably a bit more when you factor in the LED drop, whatever it is. Significantly less than a regular light bulb! Eisboch Most LED's are in the 400mw range. How about the standard 12v bulb used for anchor lights? I don't know what their wattage rating typically is. My guess would be somewhere between 10 - 20 watts, given that they are required to be seen, what, 2 miles away at night? Eisboch What is the benefit for a boater on the hook overnight besides having a brighter anchor light? Is there a significant less draw on the house battery over a 10 hour period? I never had that problem. Something you can consider is a portable anchor light such as this one http://tinyurl.com/akeg7 |
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#2
posted to rec.boats
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Gonna change the oil
I'll bet it was the bulb in the refrigerator that did it!
On Fri, 30 Dec 2005 10:37:53 -0500, "Reggie Smithers" wrote: JimH, This is exactly what I need, it uses one tenth the power of a 12 volt bulb. I saw that there were some all around LED lights to replace the 12 volt bulbs, but they were substantially more expensive, and only saved 1/2 the power. I forgot to mention that the Gel Deep Cycle battery also powered the refrigerator, so that is probably why it always died during the night. " JimH" wrote in message ... "Reggie Smithers" wrote in message ... JimH, I have a deep cycle gel battery, When I use my anchor light, it has never made it through the night without being completely discharged. Is this normal? " JimH" wrote in message ... "Eisboch" wrote in message ... " JimH" wrote in message ... "Bill McKee" wrote in message .net... "Eisboch" wrote in message news
wrote in message ups.com... First version, otherwise why use 6 resistors instead of one single lower ohmage one of higher power. I was trying to roughly calculate the power requirements. You said 600 ohm resistors, correct? The voltage drop on the LED will be minimal when forward biased or "on", so each branch must be about .02 amps, times six equals .12 amps, so the power must be about 12v times .12 or about 1.4 watts. Probably a bit more when you factor in the LED drop, whatever it is. Significantly less than a regular light bulb! Eisboch Most LED's are in the 400mw range. How about the standard 12v bulb used for anchor lights? I don't know what their wattage rating typically is. My guess would be somewhere between 10 - 20 watts, given that they are required to be seen, what, 2 miles away at night? Eisboch What is the benefit for a boater on the hook overnight besides having a brighter anchor light? Is there a significant less draw on the house battery over a 10 hour period? I never had that problem. Something you can consider is a portable anchor light such as this one http://tinyurl.com/akeg7 -- John H. "Divide each difficulty into as many parts as is feasible and necessary to resolve it." Rene Descartes |
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#3
posted to rec.boats
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Gonna change the oil
JohnH,
You might be correct, we keep the refrigerator door open so we could have a nightlight on. ; ) "JohnH" wrote in message ... I'll bet it was the bulb in the refrigerator that did it! On Fri, 30 Dec 2005 10:37:53 -0500, "Reggie Smithers" wrote: JimH, This is exactly what I need, it uses one tenth the power of a 12 volt bulb. I saw that there were some all around LED lights to replace the 12 volt bulbs, but they were substantially more expensive, and only saved 1/2 the power. I forgot to mention that the Gel Deep Cycle battery also powered the refrigerator, so that is probably why it always died during the night. " JimH" wrote in message ... "Reggie Smithers" wrote in message ... JimH, I have a deep cycle gel battery, When I use my anchor light, it has never made it through the night without being completely discharged. Is this normal? " JimH" wrote in message ... "Eisboch" wrote in message ... " JimH" wrote in message ... "Bill McKee" wrote in message .net... "Eisboch" wrote in message news
wrote in message ups.com... First version, otherwise why use 6 resistors instead of one single lower ohmage one of higher power. I was trying to roughly calculate the power requirements. You said 600 ohm resistors, correct? The voltage drop on the LED will be minimal when forward biased or "on", so each branch must be about .02 amps, times six equals .12 amps, so the power must be about 12v times .12 or about 1.4 watts. Probably a bit more when you factor in the LED drop, whatever it is. Significantly less than a regular light bulb! Eisboch Most LED's are in the 400mw range. How about the standard 12v bulb used for anchor lights? I don't know what their wattage rating typically is. My guess would be somewhere between 10 - 20 watts, given that they are required to be seen, what, 2 miles away at night? Eisboch What is the benefit for a boater on the hook overnight besides having a brighter anchor light? Is there a significant less draw on the house battery over a 10 hour period? I never had that problem. Something you can consider is a portable anchor light such as this one http://tinyurl.com/akeg7 -- John H. "Divide each difficulty into as many parts as is feasible and necessary to resolve it." Rene Descartes |
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#4
posted to rec.boats
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Gonna change the oil
"Reggie Smithers" wrote in message . .. JohnH, You might be correct, we keep the refrigerator door open so we could have a nightlight on. ; ) "JohnH" wrote in message ... I'll bet it was the bulb in the refrigerator that did it! On Fri, 30 Dec 2005 10:37:53 -0500, "Reggie Smithers" wrote: JimH, This is exactly what I need, it uses one tenth the power of a 12 volt bulb. I saw that there were some all around LED lights to replace the 12 volt bulbs, but they were substantially more expensive, and only saved 1/2 the power. I forgot to mention that the Gel Deep Cycle battery also powered the refrigerator, so that is probably why it always died during the night. " JimH" wrote in message ... "Reggie Smithers" wrote in message ... JimH, I have a deep cycle gel battery, When I use my anchor light, it has never made it through the night without being completely discharged. Is this normal? " JimH" wrote in message ... "Eisboch" wrote in message ... " JimH" wrote in message ... "Bill McKee" wrote in message .net... "Eisboch" wrote in message news
wrote in message ups.com... First version, otherwise why use 6 resistors instead of one single lower ohmage one of higher power. I was trying to roughly calculate the power requirements. You said 600 ohm resistors, correct? The voltage drop on the LED will be minimal when forward biased or "on", so each branch must be about .02 amps, times six equals .12 amps, so the power must be about 12v times .12 or about 1.4 watts. Probably a bit more when you factor in the LED drop, whatever it is. Significantly less than a regular light bulb! Eisboch Most LED's are in the 400mw range. How about the standard 12v bulb used for anchor lights? I don't know what their wattage rating typically is. My guess would be somewhere between 10 - 20 watts, given that they are required to be seen, what, 2 miles away at night? Eisboch What is the benefit for a boater on the hook overnight besides having a brighter anchor light? Is there a significant less draw on the house battery over a 10 hour period? I never had that problem. Something you can consider is a portable anchor light such as this one http://tinyurl.com/akeg7 -- John H. "Divide each difficulty into as many parts as is feasible and necessary to resolve it." Rene Descartes It also keeps the cabin cool. ;-) |
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#5
posted to rec.boats
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Gonna change the oil
Nah. The light in the fridge goes out when you close the
door........................................I think. "JohnH" wrote in message ... I'll bet it was the bulb in the refrigerator that did it! On Fri, 30 Dec 2005 10:37:53 -0500, "Reggie Smithers" wrote: JimH, This is exactly what I need, it uses one tenth the power of a 12 volt bulb. I saw that there were some all around LED lights to replace the 12 volt bulbs, but they were substantially more expensive, and only saved 1/2 the power. I forgot to mention that the Gel Deep Cycle battery also powered the refrigerator, so that is probably why it always died during the night. " JimH" wrote in message ... "Reggie Smithers" wrote in message ... JimH, I have a deep cycle gel battery, When I use my anchor light, it has never made it through the night without being completely discharged. Is this normal? " JimH" wrote in message ... "Eisboch" wrote in message ... " JimH" wrote in message ... "Bill McKee" wrote in message .net... "Eisboch" wrote in message news
wrote in message ups.com... First version, otherwise why use 6 resistors instead of one single lower ohmage one of higher power. I was trying to roughly calculate the power requirements. You said 600 ohm resistors, correct? The voltage drop on the LED will be minimal when forward biased or "on", so each branch must be about .02 amps, times six equals .12 amps, so the power must be about 12v times .12 or about 1.4 watts. Probably a bit more when you factor in the LED drop, whatever it is. Significantly less than a regular light bulb! Eisboch Most LED's are in the 400mw range. How about the standard 12v bulb used for anchor lights? I don't know what their wattage rating typically is. My guess would be somewhere between 10 - 20 watts, given that they are required to be seen, what, 2 miles away at night? Eisboch What is the benefit for a boater on the hook overnight besides having a brighter anchor light? Is there a significant less draw on the house battery over a 10 hour period? I never had that problem. Something you can consider is a portable anchor light such as this one http://tinyurl.com/akeg7 -- John H. "Divide each difficulty into as many parts as is feasible and necessary to resolve it." Rene Descartes |
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#6
posted to rec.boats
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Gonna change the oil
On Fri, 30 Dec 2005 17:59:18 GMT, "JIMinFL"
wrote: Nah. The light in the fridge goes out when you close the door........................................I think. ==================================== It had better, otherwise it will keep Schrodinger's cat awake. http://www.phobe.com/s_cat/s_cat.html |
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#7
posted to rec.boats
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Gonna change the oil
"Reggie Smithers" wrote in message ... I forgot to mention that the Gel Deep Cycle battery also powered the refrigerator, so that is probably why it always died during the night. WHACK on the head! All my calculations for naught .... Eisboch |
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#8
posted to rec.boats
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Gonna change the oil
Since my boat came with 2 batteries, and this is similar to most of the
smaller cruisers I have seen, how do most people handle the refrigerator at night, do they only keep it on when the engine is running? Without some major work, it would be hard to add a 3 rd battery in the bilge. "Eisboch" wrote in message ... "Reggie Smithers" wrote in message ... I forgot to mention that the Gel Deep Cycle battery also powered the refrigerator, so that is probably why it always died during the night. WHACK on the head! All my calculations for naught .... Eisboch |
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#9
posted to rec.boats
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Gonna change the oil
"Reggie Smithers" wrote in message ... Since my boat came with 2 batteries, and this is similar to most of the smaller cruisers I have seen, how do most people handle the refrigerator at night, do they only keep it on when the engine is running? Without a generator, a cooler and lotsa ice is your best bet. A refer will kill a group 24 or 27 battery in about 4-6 hours. Eisboch |
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#10
posted to rec.boats
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Gonna change the oil
"Eisboch" wrote in message ... "Reggie Smithers" wrote in message ... Since my boat came with 2 batteries, and this is similar to most of the smaller cruisers I have seen, how do most people handle the refrigerator at night, do they only keep it on when the engine is running? Without a generator, a cooler and lotsa ice is your best bet. A refer will kill a group 24 or 27 battery in about 4-6 hours. Eisboch We never had a problem running a refrigerator while away from shorepower overnight. But the boat had 3 group 31 deep cycle batteries though. |
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