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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
Posted to rec.crafts.metalworking
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Forklift battery info
Here's a little info I got from trying to find out info on my
forklift. My battery part number is stamped on one of the lead crossbars near the positve terminal. The numbers stamped into the side of the steel case (BB1 HL149) are meaningless I guess. My P/N is 18 7523, which was explained to me as this, first two numbers "18" indicate the number of cells. IE 18 cells = 36 volts. Last two numbers are the number of plates in the battery, "23" Each cell will start and end with a negative plate, so the number of negative plates will always be an even number and one more than positve plates. This means my battery will have 12 negative plates and 11 positve plates in each cell. The "75" number is AMP/HR rating of each positve plate. 11 plates times 75a/H per plate gives me a battery of 825 A/Hr. total capacity. Which seems to make sense beacuse there is a 825 stamped right under the 18 7523. You then need a charger rated to match the battery A/Hr rating so you can charge the battery in 8 hours, give it 8 hours cool down and then get an 8 hour work shift out of it. This lift will see only occasinal use so I'm not worried about matching up a charger. Hope someone finds this trivia useful. Thank You, Randy Remove 333 from email address to reply. |
#2
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Forklift battery info
Randy writes:
You then need a charger rated to match the battery A/Hr rating so you can charge the battery in 8 hours, give it 8 hours cool down and then get an 8 hour work shift out of it. Total nominal charge of 825 AH * 36 volts = 30 KWH. In 8 hours that proportions to a 3.7 KW charger. Thus the whopping big 3-phase chargers you see for these things. You're not gonna charge this thing from a 120VAC outlet, at least not quickly. Lead price today: $1.52/lb. Ah, electric vehicles. A toxic, hazardous "fuel tank" that costs $1000s, weighs tons, holds the energy equivalent of a few gallons of gasoline, takes all day to refill from a pump that itself costs more $1000s, and wears out in a few years. You can automatically dismiss as fools any greens promoting electric vehicles. |
#3
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Forklift battery info
In article ,
Richard J Kinch wrote: Ah, electric vehicles. A toxic, hazardous "fuel tank" that costs $1000s, weighs tons, holds the energy equivalent of a few gallons of gasoline, takes all day to refill from a pump that itself costs more $1000s, and wears out in a few years. You can automatically dismiss as fools any greens promoting electric vehicles. There is always hydrogen fuel cells. A city in CA has been running a fleet of them and averaging over $50/mile. Free men own guns - www(dot)geocities(dot)com/CapitolHill/5357/ |
#4
Posted to rec.crafts.metalworking
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Forklift battery info
"Richard J Kinch" wrote in message . .. Total nominal charge of 825 AH * 36 volts = 30 KWH. ... Ah, electric vehicles. A toxic, hazardous "fuel tank" that costs $1000s, weighs tons, holds the energy equivalent of a few gallons of gasoline, A quick calculation on the back of a used envelope tells me that 30 KWH is actually less than the energy equivalent of ONE gallon of gasoline. Now you know why it is so damn hard to build a practical electric car. Vaughn |
#5
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Forklift battery info
"nick hull" wrote in message .. . In article , Richard J Kinch wrote: Ah, electric vehicles. A toxic, hazardous "fuel tank" that costs $1000s, weighs tons, holds the energy equivalent of a few gallons of gasoline, takes all day to refill from a pump that itself costs more $1000s, and wears out in a few years. You can automatically dismiss as fools any greens promoting electric vehicles. There is always hydrogen fuel cells. A city in CA has been running a fleet of them and averaging over $50/mile. $50 a mile? If an 80,000 lb. semi can travel 7 miles on diesel at $4 a gallon that be about 57¢ a mile. Hydrogen might be a great fuel, but how much would it cost to build hydrogen filling stations all across the country, and unless we build a whole lot of nuclear power plants, where are we going to get the power to make all of the hydrogen? -- Roger Shoaf About the time I had mastered getting the toothpaste back in the tube, then they come up with this striped stuff. |
#6
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Forklift battery info
On Fri, 29 Feb 2008 19:31:33 -0800, with neither quill nor qualm,
"Roger Shoaf" quickly quoth: "nick hull" wrote in message .. . There is always hydrogen fuel cells. A city in CA has been running a fleet of them and averaging over $50/mile. That ain't cheap! I thought you were mistaken, but see you're not: http://www.autoobserver.com/2008/02/...en-fuel-c.html $50 a mile? If an 80,000 lb. semi can travel 7 miles on diesel at $4 a gallon that be about 57¢ a mile. Hydrogen might be a great fuel, but how much would it cost to build hydrogen filling stations all across the country, and unless we build a whole lot of nuclear power plants, where are we going to get the power to make all of the hydrogen? We need the nuke power to replace that extremely dirty coal we're now burning. -- An idealist believes the short run doesn't count. A cynic believes the long run doesn't matter. A realist believes that what is done or left undone in the short run determines the long run. -- Sydney J. Harris |
#7
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Forklift battery info
Roger Shoaf writes:
Hydrogen might be a great fuel, ... Yes, as a hydrocarbon, not as the element. |
#8
Posted to rec.crafts.metalworking
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Forklift battery info
Randy,
I believe your arithmatic is faulty. In your battery description, you add your cell amp/hr rating and the cells are arranged in series. That is incorrect. Cell amp/hr ratings are only additive when placed in parallel. So in your case, the entire 36V battery has a 75 Amp/hr rating, which makes much more sense as these batteries are designed for deep discharge, use thicker plates and a lower plate surface area. Consequently, the charge rate should not exceed 10% of its Amp/hr rating or 7.5 Amps. Steve "Randy" wrote in message ... Here's a little info I got from trying to find out info on my forklift. My battery part number is stamped on one of the lead crossbars near the positve terminal. The numbers stamped into the side of the steel case (BB1 HL149) are meaningless I guess. My P/N is 18 7523, which was explained to me as this, first two numbers "18" indicate the number of cells. IE 18 cells = 36 volts. Last two numbers are the number of plates in the battery, "23" Each cell will start and end with a negative plate, so the number of negative plates will always be an even number and one more than positve plates. This means my battery will have 12 negative plates and 11 positve plates in each cell. The "75" number is AMP/HR rating of each positve plate. 11 plates times 75a/H per plate gives me a battery of 825 A/Hr. total capacity. Which seems to make sense beacuse there is a 825 stamped right under the 18 7523. You then need a charger rated to match the battery A/Hr rating so you can charge the battery in 8 hours, give it 8 hours cool down and then get an 8 hour work shift out of it. This lift will see only occasinal use so I'm not worried about matching up a charger. Hope someone finds this trivia useful. Thank You, Randy Remove 333 from email address to reply. |
#9
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Forklift battery info
"Steve Lusardi" wrote in message ... Randy, I believe your arithmatic is faulty. In your battery description, you add your cell amp/hr rating and the cells are arranged in series. That is incorrect. Cell amp/hr ratings are only additive when placed in parallel. So in your case, the entire 36V battery has a 75 Amp/hr rating, which makes much more sense as these batteries are designed for deep discharge, use thicker plates and a lower plate surface area. Consequently, the charge rate should not exceed 10% of its Amp/hr rating or 7.5 Amps. Steve He's talking about amp hours per plate. The 825 sounds quite close for for a fork lift battery although many are much larger. "Randy" wrote in message ... Here's a little info I got from trying to find out info on my forklift. My battery part number is stamped on one of the lead crossbars near the positve terminal. The numbers stamped into the side of the steel case (BB1 HL149) are meaningless I guess. My P/N is 18 7523, which was explained to me as this, first two numbers "18" indicate the number of cells. IE 18 cells = 36 volts. Last two numbers are the number of plates in the battery, "23" Each cell will start and end with a negative plate, so the number of negative plates will always be an even number and one more than positve plates. This means my battery will have 12 negative plates and 11 positve plates in each cell. The "75" number is AMP/HR rating of each positve plate. 11 plates times 75a/H per plate gives me a battery of 825 A/Hr. total capacity. Which seems to make sense beacuse there is a 825 stamped right under the 18 7523. You then need a charger rated to match the battery A/Hr rating so you can charge the battery in 8 hours, give it 8 hours cool down and then get an 8 hour work shift out of it. This lift will see only occasinal use so I'm not worried about matching up a charger. Hope someone finds this trivia useful. Thank You, Randy Remove 333 from email address to reply. |
#10
Posted to rec.crafts.metalworking
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Forklift battery info
Yes, that is my point, There is one positive and one negative plate per
cell. They are connected in series, 2 Volts per cell. In series, voltage is additive, not amp/hrs. In parallel, the amp/hrs are additive not the voltage. Please do not confuse the cold start amp rating with amp/hrs, they are completely different. Steve "NewsGroups" spar@plaus wrote in message . .. "Steve Lusardi" wrote in message ... Randy, I believe your arithmatic is faulty. In your battery description, you add your cell amp/hr rating and the cells are arranged in series. That is incorrect. Cell amp/hr ratings are only additive when placed in parallel. So in your case, the entire 36V battery has a 75 Amp/hr rating, which makes much more sense as these batteries are designed for deep discharge, use thicker plates and a lower plate surface area. Consequently, the charge rate should not exceed 10% of its Amp/hr rating or 7.5 Amps. Steve He's talking about amp hours per plate. The 825 sounds quite close for for a fork lift battery although many are much larger. "Randy" wrote in message ... Here's a little info I got from trying to find out info on my forklift. My battery part number is stamped on one of the lead crossbars near the positve terminal. The numbers stamped into the side of the steel case (BB1 HL149) are meaningless I guess. My P/N is 18 7523, which was explained to me as this, first two numbers "18" indicate the number of cells. IE 18 cells = 36 volts. Last two numbers are the number of plates in the battery, "23" Each cell will start and end with a negative plate, so the number of negative plates will always be an even number and one more than positve plates. This means my battery will have 12 negative plates and 11 positve plates in each cell. The "75" number is AMP/HR rating of each positve plate. 11 plates times 75a/H per plate gives me a battery of 825 A/Hr. total capacity. Which seems to make sense beacuse there is a 825 stamped right under the 18 7523. You then need a charger rated to match the battery A/Hr rating so you can charge the battery in 8 hours, give it 8 hours cool down and then get an 8 hour work shift out of it. This lift will see only occasinal use so I'm not worried about matching up a charger. Hope someone finds this trivia useful. Thank You, Randy Remove 333 from email address to reply. |
#11
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Forklift battery info
On Sun, 2 Mar 2008 09:30:52 +0100, "Steve Lusardi"
wrote: I normally do not top post but as you did ..... Each cell has 11 plates in PARALELL. The AH of each cell is therefore 11 x 75 = 825AH 18 CELLS in series is 36v at 825AH Richard Yes, that is my point, There is one positive and one negative plate per cell. They are connected in series, 2 Volts per cell. In series, voltage is additive, not amp/hrs. In parallel, the amp/hrs are additive not the voltage. Please do not confuse the cold start amp rating with amp/hrs, they are completely different. Steve "NewsGroups" spar@plaus wrote in message ... "Steve Lusardi" wrote in message ... Randy, I believe your arithmatic is faulty. In your battery description, you add your cell amp/hr rating and the cells are arranged in series. That is incorrect. Cell amp/hr ratings are only additive when placed in parallel. So in your case, the entire 36V battery has a 75 Amp/hr rating, which makes much more sense as these batteries are designed for deep discharge, use thicker plates and a lower plate surface area. Consequently, the charge rate should not exceed 10% of its Amp/hr rating or 7.5 Amps. Steve He's talking about amp hours per plate. The 825 sounds quite close for for a fork lift battery although many are much larger. "Randy" wrote in message ... Here's a little info I got from trying to find out info on my forklift. My battery part number is stamped on one of the lead crossbars near the positve terminal. The numbers stamped into the side of the steel case (BB1 HL149) are meaningless I guess. My P/N is 18 7523, which was explained to me as this, first two numbers "18" indicate the number of cells. IE 18 cells = 36 volts. Last two numbers are the number of plates in the battery, "23" Each cell will start and end with a negative plate, so the number of negative plates will always be an even number and one more than positve plates. This means my battery will have 12 negative plates and 11 positve plates in each cell. The "75" number is AMP/HR rating of each positve plate. 11 plates times 75a/H per plate gives me a battery of 825 A/Hr. total capacity. Which seems to make sense beacuse there is a 825 stamped right under the 18 7523. You then need a charger rated to match the battery A/Hr rating so you can charge the battery in 8 hours, give it 8 hours cool down and then get an 8 hour work shift out of it. This lift will see only occasinal use so I'm not worried about matching up a charger. Hope someone finds this trivia useful. Thank You, Randy Remove 333 from email address to reply. -- Richard Email address is valid but remove burrs before sending! |
#12
Posted to rec.crafts.metalworking
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Forklift battery info
"Richard Edwards" wrote in message ... On Sun, 2 Mar 2008 09:30:52 +0100, "Steve Lusardi" wrote: I normally do not top post but as you did ..... Each cell has 11 plates in PARALELL. The AH of each cell is therefore 11 x 75 = 825AH 18 CELLS in series is 36v at 825AH Steve must not have understood the oringinal post about the number of plated per cell. Richard Yes, that is my point, There is one positive and one negative plate per cell. They are connected in series, 2 Volts per cell. In series, voltage is additive, not amp/hrs. In parallel, the amp/hrs are additive not the voltage. Please do not confuse the cold start amp rating with amp/hrs, they are completely different. Steve "NewsGroups" spar@plaus wrote in message a... "Steve Lusardi" wrote in message ... Randy, I believe your arithmatic is faulty. In your battery description, you add your cell amp/hr rating and the cells are arranged in series. That is incorrect. Cell amp/hr ratings are only additive when placed in parallel. So in your case, the entire 36V battery has a 75 Amp/hr rating, which makes much more sense as these batteries are designed for deep discharge, use thicker plates and a lower plate surface area. Consequently, the charge rate should not exceed 10% of its Amp/hr rating or 7.5 Amps. Steve He's talking about amp hours per plate. The 825 sounds quite close for for a fork lift battery although many are much larger. "Randy" wrote in message ... Here's a little info I got from trying to find out info on my forklift. My battery part number is stamped on one of the lead crossbars near the positve terminal. The numbers stamped into the side of the steel case (BB1 HL149) are meaningless I guess. My P/N is 18 7523, which was explained to me as this, first two numbers "18" indicate the number of cells. IE 18 cells = 36 volts. Last two numbers are the number of plates in the battery, "23" Each cell will start and end with a negative plate, so the number of negative plates will always be an even number and one more than positve plates. This means my battery will have 12 negative plates and 11 positve plates in each cell. The "75" number is AMP/HR rating of each positve plate. 11 plates times 75a/H per plate gives me a battery of 825 A/Hr. total capacity. Which seems to make sense beacuse there is a 825 stamped right under the 18 7523. You then need a charger rated to match the battery A/Hr rating so you can charge the battery in 8 hours, give it 8 hours cool down and then get an 8 hour work shift out of it. This lift will see only occasinal use so I'm not worried about matching up a charger. Hope someone finds this trivia useful. Thank You, Randy Remove 333 from email address to reply. -- Richard Email address is valid but remove burrs before sending! |
#13
Posted to rec.crafts.metalworking
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Forklift battery info
Steve apologizes. Steve did misunderstand.
Steve "NewsGroups" spar@plaus wrote in message ... "Richard Edwards" wrote in message ... On Sun, 2 Mar 2008 09:30:52 +0100, "Steve Lusardi" wrote: I normally do not top post but as you did ..... Each cell has 11 plates in PARALELL. The AH of each cell is therefore 11 x 75 = 825AH 18 CELLS in series is 36v at 825AH Steve must not have understood the oringinal post about the number of plated per cell. Richard Yes, that is my point, There is one positive and one negative plate per cell. They are connected in series, 2 Volts per cell. In series, voltage is additive, not amp/hrs. In parallel, the amp/hrs are additive not the voltage. Please do not confuse the cold start amp rating with amp/hrs, they are completely different. Steve "NewsGroups" spar@plaus wrote in message news:mJmdnYAL3eSTvVfanZ2dnUVZ_viunZ2d@wightman. ca... "Steve Lusardi" wrote in message ... Randy, I believe your arithmatic is faulty. In your battery description, you add your cell amp/hr rating and the cells are arranged in series. That is incorrect. Cell amp/hr ratings are only additive when placed in parallel. So in your case, the entire 36V battery has a 75 Amp/hr rating, which makes much more sense as these batteries are designed for deep discharge, use thicker plates and a lower plate surface area. Consequently, the charge rate should not exceed 10% of its Amp/hr rating or 7.5 Amps. Steve He's talking about amp hours per plate. The 825 sounds quite close for for a fork lift battery although many are much larger. "Randy" wrote in message ... Here's a little info I got from trying to find out info on my forklift. My battery part number is stamped on one of the lead crossbars near the positve terminal. The numbers stamped into the side of the steel case (BB1 HL149) are meaningless I guess. My P/N is 18 7523, which was explained to me as this, first two numbers "18" indicate the number of cells. IE 18 cells = 36 volts. Last two numbers are the number of plates in the battery, "23" Each cell will start and end with a negative plate, so the number of negative plates will always be an even number and one more than positve plates. This means my battery will have 12 negative plates and 11 positve plates in each cell. The "75" number is AMP/HR rating of each positve plate. 11 plates times 75a/H per plate gives me a battery of 825 A/Hr. total capacity. Which seems to make sense beacuse there is a 825 stamped right under the 18 7523. You then need a charger rated to match the battery A/Hr rating so you can charge the battery in 8 hours, give it 8 hours cool down and then get an 8 hour work shift out of it. This lift will see only occasinal use so I'm not worried about matching up a charger. Hope someone finds this trivia useful. Thank You, Randy Remove 333 from email address to reply. -- Richard Email address is valid but remove burrs before sending! |
#14
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Forklift battery info
On Sun, 2 Mar 2008 09:30:52 +0100, "Steve Lusardi"
wrote: Yes, that is my point, There is one positive and one negative plate per cell. They are connected in series, 2 Volts per cell. In series, voltage is additive, not amp/hrs. In parallel, the amp/hrs are additive not the voltage. Please do not confuse the cold start amp rating with amp/hrs, they are completely different. Steve A whole lot more than 2 plates per cell, Bucko!!! "NewsGroups" spar@plaus wrote in message ... "Steve Lusardi" wrote in message ... Randy, I believe your arithmatic is faulty. In your battery description, you add your cell amp/hr rating and the cells are arranged in series. That is incorrect. Cell amp/hr ratings are only additive when placed in parallel. So in your case, the entire 36V battery has a 75 Amp/hr rating, which makes much more sense as these batteries are designed for deep discharge, use thicker plates and a lower plate surface area. Consequently, the charge rate should not exceed 10% of its Amp/hr rating or 7.5 Amps. Steve He's talking about amp hours per plate. The 825 sounds quite close for for a fork lift battery although many are much larger. "Randy" wrote in message ... Here's a little info I got from trying to find out info on my forklift. My battery part number is stamped on one of the lead crossbars near the positve terminal. The numbers stamped into the side of the steel case (BB1 HL149) are meaningless I guess. My P/N is 18 7523, which was explained to me as this, first two numbers "18" indicate the number of cells. IE 18 cells = 36 volts. Last two numbers are the number of plates in the battery, "23" Each cell will start and end with a negative plate, so the number of negative plates will always be an even number and one more than positve plates. This means my battery will have 12 negative plates and 11 positve plates in each cell. The "75" number is AMP/HR rating of each positve plate. 11 plates times 75a/H per plate gives me a battery of 825 A/Hr. total capacity. Which seems to make sense beacuse there is a 825 stamped right under the 18 7523. You then need a charger rated to match the battery A/Hr rating so you can charge the battery in 8 hours, give it 8 hours cool down and then get an 8 hour work shift out of it. This lift will see only occasinal use so I'm not worried about matching up a charger. Hope someone finds this trivia useful. Thank You, Randy Remove 333 from email address to reply. -- Posted via a free Usenet account from http://www.teranews.com |
#15
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Forklift battery info
Randy wrote:
Here's a little info I got from trying to find out info on my forklift. My battery part number is stamped on one of the lead crossbars near the positve terminal. The numbers stamped into the side of the steel case (BB1 HL149) are meaningless I guess. My P/N is 18 7523, which was explained to me as this, first two numbers "18" indicate the number of cells. IE 18 cells = 36 volts. Last two numbers are the number of plates in the battery, "23" Each cell will start and end with a negative plate, so the number of negative plates will always be an even number and one more than positve plates. This means my battery will have 12 negative plates and 11 positve plates in each cell. That 12 and 11 plate thing makes no sense at all to me. Does anyone else understand what he's trying to say? Jeff -- Jeffry Wisnia (W1BSV + Brass Rat '57 EE) The speed of light is 1.98*10^14 fathoms per fortnight. snipped |
#16
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Forklift battery info
Richard J Kinch wrote:
Roger Shoaf writes: Hydrogen might be a great fuel, ... Yes, as a hydrocarbon, not as the element. I may not be around to see it, but I'd put my money on solar energy becoming our saving grace as solar cell efficiency gets improved and manufacturing costs lowered. The electricity they generated could be used to make hydrogen if needed. Jeff -- Jeffry Wisnia (W1BSV + Brass Rat '57 EE) The speed of light is 1.98*10^14 fathoms per fortnight. |
#17
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Forklift battery info
Jeff Wisnia writes:
That 12 and 11 plate thing makes no sense at all to me. Does anyone else understand what he's trying to say? I suspect he means that each cell has (of course) two poles, positive and negative, but that each is made of 11 or 12 connected lead grids (plates). |
#18
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Forklift battery info
On Sun, 02 Mar 2008 20:12:38 -0500, Jeff Wisnia
wrote: Randy wrote: Here's a little info I got from trying to find out info on my forklift. My battery part number is stamped on one of the lead crossbars near the positve terminal. The numbers stamped into the side of the steel case (BB1 HL149) are meaningless I guess. My P/N is 18 7523, which was explained to me as this, first two numbers "18" indicate the number of cells. IE 18 cells = 36 volts. Last two numbers are the number of plates in the battery, "23" Each cell will start and end with a negative plate, so the number of negative plates will always be an even number and one more than positve plates. This means my battery will have 12 negative plates and 11 positve plates in each cell. That 12 and 11 plate thing makes no sense at all to me. Does anyone else understand what he's trying to say? Jeff Yes the negative plates shed electrons, so for the positive plates to ALL be active on both sides, each cell MUST have one more negative plate than positives. For economy,(of lead and active material used, and therefore weight) those outer negative plates COULD be single sided (half plates) but that would require 3 kinds of negative, and one kind of positive plate to be made for each cell. Not very economically feasible on the long run -- Posted via a free Usenet account from http://www.teranews.com |
#19
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Forklift battery info
On Sun, 02 Mar 2008 20:16:14 -0500, Jeff Wisnia
wrote: Richard J Kinch wrote: Roger Shoaf writes: Hydrogen might be a great fuel, ... Yes, as a hydrocarbon, not as the element. I may not be around to see it, but I'd put my money on solar energy becoming our saving grace as solar cell efficiency gets improved and manufacturing costs lowered. The electricity they generated could be used to make hydrogen if needed. Jeff But the efficiency of converting solar electricity to hydrogen needs to be significantly higher than the efficiency of charging batteries for this to become reality. I'm still expecting a breakthrough in battery or ultracapacitor technology to make straight electrical vehicle power feasible - which would allow solar energy to really come into its own. At this point, ALL the technology to make a commercially acceptable electric car is not only available, but proven and mature, EXCEPT for the battery. As for hydrogen technology, which type are we proposing? Hydrogen combustion (heat engine) or hydrogen/electric (fuel cell)? Hydrogen as an engine fuel has many hurdles to become a commercially acceptable solution. Hydrogen fuel cell technology is closer, but still has hurdles. -- Posted via a free Usenet account from http://www.teranews.com |
#20
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Forklift battery info
I'm still expecting a breakthrough in battery or ultracapacitor
technology to make straight electrical vehicle power feasible As long as your continging on a breakthrough, you ought to choose a more plausible and more valuable breakthrough. Like room-temperature superconductors or cold fusion. Then the clean, abundant energy problems are solved. Wishing and hoping for better batteries is like dreaming about a pony who doesn't eat much. |
#21
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Forklift battery info
Jeff Wisnia writes:
I may not be around to see it, but I'd put my money on solar energy becoming our saving grace as solar cell efficiency gets improved and manufacturing costs lowered. Solar energy density is inherently weak. Physics requires it. Hoping won't change that. Sort of like the blood in the hospital in the movie _The Killing Fields_. The doctors had plenty of blood, but it was spread all over the floor instead of inside bottles. |
#22
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Forklift battery info
On Sun, 02 Mar 2008 20:12:38 -0500, Jeff Wisnia
wrote: Randy wrote: Here's a little info I got from trying to find out info on my forklift. My battery part number is stamped on one of the lead crossbars near the positve terminal. The numbers stamped into the side of the steel case (BB1 HL149) are meaningless I guess. My P/N is 18 7523, which was explained to me as this, first two numbers "18" indicate the number of cells. IE 18 cells = 36 volts. Last two numbers are the number of plates in the battery, "23" Each cell will start and end with a negative plate, so the number of negative plates will always be an even number and one more than positve plates. This means my battery will have 12 negative plates and 11 positve plates in each cell. That 12 and 11 plate thing makes no sense at all to me. Does anyone else understand what he's trying to say? Jeff see http://en.wikipedia.org/wiki/Lead-acid_battery Each cell has alternating lead plates with a separator inbetween them, one plate forms the positive and one plate forms the negative, these plates are laid up side by side until a cell of 2 volts is created. The size of the plates in square inches of surface area determines its amp/hour capacity. More clear? Thank You, Randy Remove 333 from email address to reply. |
#23
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Forklift battery info
On Mon, 03 Mar 2008 09:08:24 -0500, Randy wrote:
On Sun, 02 Mar 2008 20:12:38 -0500, Jeff Wisnia wrote: Randy wrote: Here's a little info I got from trying to find out info on my forklift. My battery part number is stamped on one of the lead crossbars near the positve terminal. The numbers stamped into the side of the steel case (BB1 HL149) are meaningless I guess. My P/N is 18 7523, which was explained to me as this, first two numbers "18" indicate the number of cells. IE 18 cells = 36 volts. Last two numbers are the number of plates in the battery, "23" Each cell will start and end with a negative plate, so the number of negative plates will always be an even number and one more than positve plates. This means my battery will have 12 negative plates and 11 positve plates in each cell. That 12 and 11 plate thing makes no sense at all to me. Does anyone else understand what he's trying to say? Jeff see http://en.wikipedia.org/wiki/Lead-acid_battery Each cell has alternating lead plates with a separator inbetween them, one plate forms the positive and one plate forms the negative, these plates are laid up side by side until a cell of 2 volts is created. The size of the plates in square inches of surface area determines its amp/hour capacity. More clear? Thank You, Randy Remove 333 from email address to reply. Still wrong. Only takes 2 plates to make 2 volts The extra plates, in parallel, produce more CAPACITY. -- Posted via a free Usenet account from http://www.teranews.com |
#24
Posted to rec.crafts.metalworking
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Forklift battery info
On Mon, 03 Mar 2008 12:36:51 -0500, clare at snyder dot ontario dot
canada wrote: On Mon, 03 Mar 2008 09:08:24 -0500, Randy wrote: On Sun, 02 Mar 2008 20:12:38 -0500, Jeff Wisnia wrote: Randy wrote: Here's a little info I got from trying to find out info on my forklift. My battery part number is stamped on one of the lead crossbars near the positve terminal. The numbers stamped into the side of the steel case (BB1 HL149) are meaningless I guess. My P/N is 18 7523, which was explained to me as this, first two numbers "18" indicate the number of cells. IE 18 cells = 36 volts. Last two numbers are the number of plates in the battery, "23" Each cell will start and end with a negative plate, so the number of negative plates will always be an even number and one more than positve plates. This means my battery will have 12 negative plates and 11 positve plates in each cell. That 12 and 11 plate thing makes no sense at all to me. Does anyone else understand what he's trying to say? Jeff see http://en.wikipedia.org/wiki/Lead-acid_battery Each cell has alternating lead plates with a separator inbetween them, one plate forms the positive and one plate forms the negative, these plates are laid up side by side until a cell of 2 volts is created. The size of the plates in square inches of surface area determines its amp/hour capacity. More clear? Thank You, Randy Remove 333 from email address to reply. Still wrong. Only takes 2 plates to make 2 volts The extra plates, in parallel, produce more CAPACITY. Yep, I'm wrong. All the neg's are connected together in parallel and and all the pos's are connected together in parallel. so one of each would be 2 volts. Thank You, Randy Remove 333 from email address to reply. |
#25
Posted to rec.crafts.metalworking
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Forklift battery info
On Mon, 03 Mar 2008 13:08:26 -0500, with neither quill nor qualm,
Randy quickly quoth: On Mon, 03 Mar 2008 12:36:51 -0500, clare at snyder dot ontario dot canada wrote: On Mon, 03 Mar 2008 09:08:24 -0500, Randy wrote: On Sun, 02 Mar 2008 20:12:38 -0500, Jeff Wisnia wrote: Randy wrote: Here's a little info I got from trying to find out info on my forklift. My battery part number is stamped on one of the lead crossbars near the positve terminal. The numbers stamped into the side of the steel case (BB1 HL149) are meaningless I guess. My P/N is 18 7523, which was explained to me as this, first two numbers "18" indicate the number of cells. IE 18 cells = 36 volts. Last two numbers are the number of plates in the battery, "23" Each cell will start and end with a negative plate, so the number of negative plates will always be an even number and one more than positve plates. This means my battery will have 12 negative plates and 11 positve plates in each cell. That 12 and 11 plate thing makes no sense at all to me. Does anyone else understand what he's trying to say? Jeff see http://en.wikipedia.org/wiki/Lead-acid_battery Each cell has alternating lead plates with a separator inbetween them, one plate forms the positive and one plate forms the negative, these plates are laid up side by side until a cell of 2 volts is created. The size of the plates in square inches of surface area determines its amp/hour capacity. More clear? Thank You, Randy Remove 333 from email address to reply. Still wrong. Only takes 2 plates to make 2 volts The extra plates, in parallel, produce more CAPACITY. Yep, I'm wrong. All the neg's are connected together in parallel and and all the pos's are connected together in parallel. so one of each would be 2 volts. In a 2 volt battery, you're right. In a 12V battery, they're connected in series, each set producing 2V. Larger plates increases capacity. -+ -+ -+ -+ = 2V -+-+-+-+-+-+ = 12V -+ -+ -- An idealist believes the short run doesn't count. A cynic believes the long run doesn't matter. A realist believes that what is done or left undone in the short run determines the long run. -- Sydney J. Harris |
#26
Posted to rec.crafts.metalworking
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Forklift battery info
On Mon, 03 Mar 2008 10:37:09 -0800, Larry Jaques
wrote: On Mon, 03 Mar 2008 13:08:26 -0500, with neither quill nor qualm, Randy quickly quoth: On Mon, 03 Mar 2008 12:36:51 -0500, clare at snyder dot ontario dot canada wrote: On Mon, 03 Mar 2008 09:08:24 -0500, Randy wrote: On Sun, 02 Mar 2008 20:12:38 -0500, Jeff Wisnia wrote: Randy wrote: Here's a little info I got from trying to find out info on my forklift. My battery part number is stamped on one of the lead crossbars near the positve terminal. The numbers stamped into the side of the steel case (BB1 HL149) are meaningless I guess. My P/N is 18 7523, which was explained to me as this, first two numbers "18" indicate the number of cells. IE 18 cells = 36 volts. Last two numbers are the number of plates in the battery, "23" Each cell will start and end with a negative plate, so the number of negative plates will always be an even number and one more than positve plates. This means my battery will have 12 negative plates and 11 positve plates in each cell. That 12 and 11 plate thing makes no sense at all to me. Does anyone else understand what he's trying to say? Jeff see http://en.wikipedia.org/wiki/Lead-acid_battery Each cell has alternating lead plates with a separator inbetween them, one plate forms the positive and one plate forms the negative, these plates are laid up side by side until a cell of 2 volts is created. The size of the plates in square inches of surface area determines its amp/hour capacity. More clear? Thank You, Randy Remove 333 from email address to reply. Still wrong. Only takes 2 plates to make 2 volts The extra plates, in parallel, produce more CAPACITY. Yep, I'm wrong. All the neg's are connected together in parallel and and all the pos's are connected together in parallel. so one of each would be 2 volts. In a 2 volt battery, you're right. In a 12V battery, they're connected in series, each set producing 2V. Larger plates increases capacity. -+ -+ -+ -+ = 2V -+-+-+-+-+-+ = 12V -+ -+ I was refering to a single cell. A 12 volt battery is 6 cells of 2 volts each. So inside each cell the plates are parallelled for more current, and then the cells are connected in series to provide the voltage needed in a complete battery. I hope everyone reading this thread now knows what I was trying to say. Thank You, Randy Remove 333 from email address to reply. |
#27
Posted to rec.crafts.metalworking
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Forklift battery info
Randy wrote:
On Mon, 03 Mar 2008 10:37:09 -0800, Larry Jaques wrote: In a 2 volt battery, you're right. In a 12V battery, they're connected in series, each set producing 2V. Larger plates increases capacity. -+ -+ -+ -+ = 2V -+-+-+-+-+-+ = 12V -+ -+ I was refering to a single cell. A 12 volt battery is 6 cells of 2 volts each. So inside each cell the plates are parallelled for more current, and then the cells are connected in series to provide the voltage needed in a complete battery. I hope everyone reading this thread now knows what I was trying to say. Thank You, Randy OK I'll try some fancy ASCII art work too: :-) | - + | | - + | | - + | | - + | | - + | | - + | ---| - + |---| - + |---| - + |---| - + |---| - + |---| - + |---(+)12V | - + | | - + | | - + | | - + | | - + | | - + | There is your 12V "BATTERY" with multiple plates in each "CELL". :-) Aint ASCII art fun? ...lew...(nothing better to do till supper) |
#28
Posted to rec.crafts.metalworking
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Forklift battery info
On Mon, 03 Mar 2008 10:37:09 -0800, Larry Jaques
wrote: On Mon, 03 Mar 2008 13:08:26 -0500, with neither quill nor qualm, Randy quickly quoth: On Mon, 03 Mar 2008 12:36:51 -0500, clare at snyder dot ontario dot canada wrote: On Mon, 03 Mar 2008 09:08:24 -0500, Randy wrote: On Sun, 02 Mar 2008 20:12:38 -0500, Jeff Wisnia wrote: Randy wrote: Here's a little info I got from trying to find out info on my forklift. My battery part number is stamped on one of the lead crossbars near the positve terminal. The numbers stamped into the side of the steel case (BB1 HL149) are meaningless I guess. My P/N is 18 7523, which was explained to me as this, first two numbers "18" indicate the number of cells. IE 18 cells = 36 volts. Last two numbers are the number of plates in the battery, "23" Each cell will start and end with a negative plate, so the number of negative plates will always be an even number and one more than positve plates. This means my battery will have 12 negative plates and 11 positve plates in each cell. That 12 and 11 plate thing makes no sense at all to me. Does anyone else understand what he's trying to say? Jeff see http://en.wikipedia.org/wiki/Lead-acid_battery Each cell has alternating lead plates with a separator inbetween them, one plate forms the positive and one plate forms the negative, these plates are laid up side by side until a cell of 2 volts is created. The size of the plates in square inches of surface area determines its amp/hour capacity. More clear? Thank You, Randy Remove 333 from email address to reply. Still wrong. Only takes 2 plates to make 2 volts The extra plates, in parallel, produce more CAPACITY. Yep, I'm wrong. All the neg's are connected together in parallel and and all the pos's are connected together in parallel. so one of each would be 2 volts. In a 2 volt battery, you're right. In a 12V battery, they're connected in series, each set producing 2V. Larger plates increases capacity. -+ -+ -+ -+ = 2V -+-+-+-+-+-+ = 12V -+ -+ You are still wrong. Each cell in ANY lead acid battery is 2 volts, and virtually all have parallel connected, interleaving plates in each cell. Larger OR more plated gives increased capacity. There really is no such thing as a 2 volt battery. lead-acid wise. It's only a cell - and a battery, by definition, is multiple cells. No such thing as an A, AA, AAA,C or D battery either. They are all single cells. A 9 volt is a battery.. -- Posted via a free Usenet account from http://www.teranews.com |
#29
Posted to rec.crafts.metalworking
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Forklift battery info
Randy fired this volley in
: Each cell has alternating lead plates with a separator inbetween them, one plate forms the positive and one plate forms the negative, these plates are laid up side by side until a cell of 2 volts is created. ............ More clear? It was, Randy, until you said that! Just two plates =2V. So does 20 plates. So does 200. The number of plates per cell affects the surface area, which in turn affects the ampacity of the cell. The number of plates in parallel has no effect whatsoever on the voltage of the cell. LLoyd |
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