Shelf Life Information for DC Battery
- Thread starter mbowmanr
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hbiss
EC, Westchester, New York NEC: 2014
- Location
- Hawthorne, New York NEC: 2014
- Occupation
- EC
Re: Shelf Life Information for DC Battery
I was wondering if someone out there knows a non-biased source?
What makes you think that the manufacturers data is biased and other sources are more reliable?
-Hal
I was wondering if someone out there knows a non-biased source?
What makes you think that the manufacturers data is biased and other sources are more reliable?
-Hal
Re: Shelf Life Information for DC Battery
hbis
I presume you do not have any information that I was looking for?
You asked, "What makes you think that the manufacturers data is biased and other sources are more reliable? "
I don?t, you assumed I do because I asked for non-biased.
You stated, "I certainly would rely on what the manufacturer has to say."
I do to, that is why I compile mfr data.
I make it a practice to look at all sources I can find. Then make a determination based on the data provided. Manufactures are always considered.
You Stated, "Besides, if you use any of the various types it isn't rocket science to figure out what the approximate shelf life is anyway."
You assumed that we think it is hard, and we don?t think it is. We simply asked for more information on the subject.
When you have time look up the fallacy of begging the question.
hbis
I presume you do not have any information that I was looking for?
You asked, "What makes you think that the manufacturers data is biased and other sources are more reliable? "
I don?t, you assumed I do because I asked for non-biased.
You stated, "I certainly would rely on what the manufacturer has to say."
I do to, that is why I compile mfr data.
I make it a practice to look at all sources I can find. Then make a determination based on the data provided. Manufactures are always considered.
You Stated, "Besides, if you use any of the various types it isn't rocket science to figure out what the approximate shelf life is anyway."
You assumed that we think it is hard, and we don?t think it is. We simply asked for more information on the subject.
When you have time look up the fallacy of begging the question.
brian john
Senior Member
- Location
- Leesburg, VA
Re: Shelf Life Information for DC Battery
While Bennie is right there are formulas to determine the shelf life base upon capacity at time of storage, temperature ect????.The standard shelf life for sealed lead acid batteries and flooded lead acid batteries, based upon keeping the manufacture warranty intact is 6 months.
AT some point during storage the cells will require a refreshing charge. This charge rate will be based upon the temperature, type of cell AND THE MANUFACTURE SPECIFICATIONS.
Documentation of all inspections, charging and storage dates will assist the end user in any future warranty issues.
This is based upon new cells, should the battery be other than new , you will NEED to contact the manufacture, warranty, warranty, warranty.
While Bennie is right there are formulas to determine the shelf life base upon capacity at time of storage, temperature ect????.The standard shelf life for sealed lead acid batteries and flooded lead acid batteries, based upon keeping the manufacture warranty intact is 6 months.
AT some point during storage the cells will require a refreshing charge. This charge rate will be based upon the temperature, type of cell AND THE MANUFACTURE SPECIFICATIONS.
Documentation of all inspections, charging and storage dates will assist the end user in any future warranty issues.
This is based upon new cells, should the battery be other than new , you will NEED to contact the manufacture, warranty, warranty, warranty.
hbiss
EC, Westchester, New York NEC: 2014
- Location
- Hawthorne, New York NEC: 2014
- Occupation
- EC
Re: Shelf Life Information for DC Battery
I presume you do not have any information that I was looking for?
You asked, I gave you the benefit of my knowledge. I seriously doubt that you will find any reliable information from other than the manufacturers. You might try Consumer Reports for consumer type batteries.
One thing that p****s me off is when I take the time to give advice and the person who asked for it chastises me because they don't like it.
Guess what Bud, if you don't like what I or anybody else tells you here go somewhere else. I don't know where you are from but that's not the way we act around here!
-Hal
I presume you do not have any information that I was looking for?
You asked, I gave you the benefit of my knowledge. I seriously doubt that you will find any reliable information from other than the manufacturers. You might try Consumer Reports for consumer type batteries.
One thing that p****s me off is when I take the time to give advice and the person who asked for it chastises me because they don't like it.
Guess what Bud, if you don't like what I or anybody else tells you here go somewhere else.
I don't know where you are from but that's not the way we act around here!-Hal
Re: Shelf Life Information for DC Battery
Brian Gaquin
I do not have full control of procurement I can only advise our folks in procurement. So what I am doing is looking at the manufacturing processes, material used, and manufactures recommended shelf life data. Since procurement looks at best value only, quality will select the most stringent shelf life for a category of an item. We do this because we do not know what manufacture may get the contract.
Here are some examples of what I have ran into on one category -
Battery - Lead Acid - Dry
Some manufactures use a pure lead tin some do not pure lead data shows a longer shelf life.
I have found four different manufacturing processes.
Some will introduce electrolyte, charge, remove electrolyte and bake the battery.
Some will introduce electrolyte, charge, remove and then introduce a preservative.
Some will introduce electrolyte, charge, remove some of the electrolyte but leave some in the casing.
Some will never introduce electrolyte.
The processes have an impact on shelf life as well.
The longest mfr shelf life I have is 24 months and because of the various storage conditions, manufacturing processes and control of procurement we shorten that shelf life.
We deal with all types of batteries anyone with any information would be appreciated.
Thank you,
Mark
Brian Gaquin
I do not have full control of procurement I can only advise our folks in procurement. So what I am doing is looking at the manufacturing processes, material used, and manufactures recommended shelf life data. Since procurement looks at best value only, quality will select the most stringent shelf life for a category of an item. We do this because we do not know what manufacture may get the contract.
Here are some examples of what I have ran into on one category -
Battery - Lead Acid - Dry
Some manufactures use a pure lead tin some do not pure lead data shows a longer shelf life.
I have found four different manufacturing processes.
Some will introduce electrolyte, charge, remove electrolyte and bake the battery.
Some will introduce electrolyte, charge, remove and then introduce a preservative.
Some will introduce electrolyte, charge, remove some of the electrolyte but leave some in the casing.
Some will never introduce electrolyte.
The processes have an impact on shelf life as well.
The longest mfr shelf life I have is 24 months and because of the various storage conditions, manufacturing processes and control of procurement we shorten that shelf life.
We deal with all types of batteries anyone with any information would be appreciated.
Thank you,
Mark
Re: Shelf Life Information for DC Battery
Hal
I am here for information and to share what I know in the hopes that we all benefit from the information. You did not provide any information but just to comment and questioned my request for information. I replied to your questions and comments and you are offended. I am sorry to have offended you.
Do you yourself practice this policy?
You said "Guess what Bud, if you don't like what I or anybody else tells you here go somewhere else."
Hal
I am here for information and to share what I know in the hopes that we all benefit from the information. You did not provide any information but just to comment and questioned my request for information. I replied to your questions and comments and you are offended. I am sorry to have offended you.
Do you yourself practice this policy?
You said "Guess what Bud, if you don't like what I or anybody else tells you here go somewhere else."
Re: Shelf Life Information for DC Battery
I use rechargeable batteries for my digital and video cameras.
The digital uses AA 1.2V 1800mAh NI-MH batteries.
My video camera uses 7.2V 2500mAh Lithium-ion batteries. Cost $100. each.
I'm not concerned with shelf life on these batteries, I only want length of use between charges.
The time of use should be in line with shelf life. The higher mAh capacity should last longer.
I use rechargeable batteries for my digital and video cameras.
The digital uses AA 1.2V 1800mAh NI-MH batteries.
My video camera uses 7.2V 2500mAh Lithium-ion batteries. Cost $100. each.
I'm not concerned with shelf life on these batteries, I only want length of use between charges.
The time of use should be in line with shelf life. The higher mAh capacity should last longer.
Re: Shelf Life Information for DC Battery
Bennie
Your right at the consumer end your worried about the service life of the item.
The shelf life has an impact on service life.
Shelf life on some of the NiHH is extendable (requires testing) with a 36-month shelf life.
The same battery from a different manufacture is five years. NiMH and NiCD both store better fully discharged. That?s why on the consumer end when we want to use that new electronic device were plugging it into an electrical outlet and charging it for x amount of hours.
Bennie
Your right at the consumer end your worried about the service life of the item.
The shelf life has an impact on service life.
Shelf life on some of the NiHH is extendable (requires testing) with a 36-month shelf life.
The same battery from a different manufacture is five years. NiMH and NiCD both store better fully discharged. That?s why on the consumer end when we want to use that new electronic device were plugging it into an electrical outlet and charging it for x amount of hours.
Re: Shelf Life Information for DC Battery
Dereck
I work Quality Assurance in Aviation. I was handed a project to review various sizes and makes of batteries US Government uses.
We do manage flooded station batteries. Was there a question you had about them?
I am going to ISO9000 School next week and hope to receive more information during this class. I have knowledge of batteries but I am not an expert on all of the kinds that are out there.
This is what I was originally looking for and have found some since organizations (that should not be biased) like:
SAE Storage Battery Standards
http://forums.sae.org/access/dispatch.cgi/TEVEES4
NEMA National Electric Manufacturing Association
ISO International Organization of Standards
http://www.iso.ch/iso/en/ISOOnline.frontpage
Power Engineering Society - Stationary Battery Committee
http://grouper.ieee.org/groups/stationary-battery/
Thank you
Mark
Dereck
I work Quality Assurance in Aviation. I was handed a project to review various sizes and makes of batteries US Government uses.
We do manage flooded station batteries. Was there a question you had about them?
I am going to ISO9000 School next week and hope to receive more information during this class. I have knowledge of batteries but I am not an expert on all of the kinds that are out there.
This is what I was originally looking for and have found some since organizations (that should not be biased) like:
SAE Storage Battery Standards
http://forums.sae.org/access/dispatch.cgi/TEVEES4
NEMA National Electric Manufacturing Association
ISO International Organization of Standards
http://www.iso.ch/iso/en/ISOOnline.frontpage
Power Engineering Society - Stationary Battery Committee
http://grouper.ieee.org/groups/stationary-battery/
Thank you
Mark
Re: Shelf Life Information for DC Battery
Mark the reason I ask is because I know of a couple of people who set on The IEEE panel who write the standards for station battery maintenace,testing, own/operate a testing company, and one engineer with C&D who designed the Lucent the "Round Cell". Thought they might be of some help with station batteries.
Mark the reason I ask is because I know of a couple of people who set on The IEEE panel who write the standards for station battery maintenace,testing, own/operate a testing company, and one engineer with C&D who designed the Lucent the "Round Cell". Thought they might be of some help with station batteries.
Re: Shelf Life Information for DC Battery
Bennie
Service and shelf life are equally important. We try to move the product to the user with cost savings and the impact on performance in mind. We play a part in the service life, by making sure the specs of the contract meet the application of the end item. Dealing with Aviation requires me to be vigilant and I deal with allot of paperwork. Quality Assurance is a paper trail cradle to grave.
Mark
Bennie
Service and shelf life are equally important. We try to move the product to the user with cost savings and the impact on performance in mind. We play a part in the service life, by making sure the specs of the contract meet the application of the end item. Dealing with Aviation requires me to be vigilant and I deal with allot of paperwork. Quality Assurance is a paper trail cradle to grave.
Mark
- Location
- Bremerton, Washington
- Occupation
- Master Electrician
Re: Shelf Life Information for DC Battery
I work for a municipality, we install, use and maintain a variety of batteries. We have battery analyzers that take battery, discharge and charge it three times, and then display the amphours. We have found some 25 % capacity batteries can be recovered to over 100% of rated capacity. this tester has interchangeable modules for different batteries, will analyze ni-cad, gel cel and NiHydride, etc. I have found the best ni-cad battery chager is one that pulses the battery with a higher voltage DC pulse. I have a small solar panel on my personal pickup, it puts out a 18 vdc pulse and maintains the battery, it does not let sulfates build up at the bottom of the battery.
For home camera use I have been using the RayoVac Ic3 battery system, it charges the battery in 15 minutes, and they have a fairly high capacity of 2,000 mA hours, which we have tested at 1800.
I work for a municipality, we install, use and maintain a variety of batteries. We have battery analyzers that take battery, discharge and charge it three times, and then display the amphours. We have found some 25 % capacity batteries can be recovered to over 100% of rated capacity. this tester has interchangeable modules for different batteries, will analyze ni-cad, gel cel and NiHydride, etc. I have found the best ni-cad battery chager is one that pulses the battery with a higher voltage DC pulse. I have a small solar panel on my personal pickup, it puts out a 18 vdc pulse and maintains the battery, it does not let sulfates build up at the bottom of the battery.
For home camera use I have been using the RayoVac Ic3 battery system, it charges the battery in 15 minutes, and they have a fairly high capacity of 2,000 mA hours, which we have tested at 1800.
ceb
Senior Member
- Location
- raeford,nc
Re: Shelf Life Information for DC Battery
I keep my batteries for flashlights,testers and such in the fridge net to the mayo and mustard. They seem to last longer. (Don't know if its the cold or the mayo.) o'h well time to make a sandwich.
I keep my batteries for flashlights,testers and such in the fridge net to the mayo and mustard. They seem to last longer. (Don't know if its the cold or the mayo.) o'h well time to make a sandwich.
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