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#1
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Ni-Cad Battery Storage
Hi;
I picked up an 18 volt Dewalt Cordless Drill and a Dewalt Impact gun that use the same batteries. Each item came with 2 batteries so I now have 4 batteries. Batteries cost 90 dollars each and I have four of them. I would like to store two of them for a couple years. I would use two of them now, and then when they go bad, break out the other two. Is it possible to store these batteries? What is the best way to accomplish this if it is possible? Thanks Pat |
#2
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Ni-Cad Battery Storage
On Fri, 4 Jan 2008 12:03:21 -0800 (PST), komobu
wrote: Hi; I picked up an 18 volt Dewalt Cordless Drill and a Dewalt Impact gun that use the same batteries. Each item came with 2 batteries so I now have 4 batteries. Batteries cost 90 dollars each and I have four of them. I would like to store two of them for a couple years. I would use two of them now, and then when they go bad, break out the other two. Is it possible to store these batteries? What is the best way to accomplish this if it is possible? Thanks Pat They can be stored for years and years without maintenance or degradation. Just store them in a mostly discharged state preferably in a cool area. Never freeze a Ni-Cad or run the battery down below ..8 volts per cell. |
#3
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Ni-Cad Battery Storage
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#5
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Ni-Cad Battery Storage
In article ,
wrote: On Fri, 04 Jan 2008 17:58:54 -0800, Smitty Two wrote: In article , wrote: On Fri, 4 Jan 2008 12:03:21 -0800 (PST), komobu wrote: Hi; I picked up an 18 volt Dewalt Cordless Drill and a Dewalt Impact gun that use the same batteries. Each item came with 2 batteries so I now have 4 batteries. Batteries cost 90 dollars each and I have four of them. I would like to store two of them for a couple years. I would use two of them now, and then when they go bad, break out the other two. Is it possible to store these batteries? What is the best way to accomplish this if it is possible? Thanks Pat They can be stored for years and years without maintenance or degradation. Just store them in a mostly discharged state preferably in a cool area. Never freeze a Ni-Cad or run the battery down below .8 volts per cell. Hmm. Wouldn't storing them for years run the voltage down below .8 volts per cell? It may go below .8volts but it's not being run down so the answer is no. So you can let a nicad sit on the shelf dead for years? I didn't know that. Same with other rechargeable chemistries? |
#6
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Ni-Cad Battery Storage
On Sat, 05 Jan 2008 08:40:34 -0800, Smitty Two
They can be stored for years and years without maintenance or degradation. Just store them in a mostly discharged state preferably in a cool area. Never freeze a Ni-Cad or run the battery down below .8 volts per cell. Hmm. Wouldn't storing them for years run the voltage down below .8 volts per cell? It may go below .8volts but it's not being run down so the answer is no. So you can let a nicad sit on the shelf dead for years? Yes. Some tool manufacturers recommend a discharged battery for long term storage. I didn't know that. Same with other rechargeable chemistries? Li-ion 40% charge in cool area for long term storage. NiMH ? |
#7
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Ni-Cad Battery Storage
"Smitty Two" wrote in message news In article , wrote: On Fri, 04 Jan 2008 17:58:54 -0800, Smitty Two wrote: In article , wrote: On Fri, 4 Jan 2008 12:03:21 -0800 (PST), komobu wrote: Hi; I picked up an 18 volt Dewalt Cordless Drill and a Dewalt Impact gun that use the same batteries. Each item came with 2 batteries so I now have 4 batteries. Batteries cost 90 dollars each and I have four of them. I would like to store two of them for a couple years. I would use two of them now, and then when they go bad, break out the other two. Is it possible to store these batteries? What is the best way to accomplish this if it is possible? Thanks Pat They can be stored for years and years without maintenance or degradation. Just store them in a mostly discharged state preferably in a cool area. Never freeze a Ni-Cad or run the battery down below .8 volts per cell. Hmm. Wouldn't storing them for years run the voltage down below .8 volts per cell? It may go below .8volts but it's not being run down so the answer is no. So you can let a nicad sit on the shelf dead for years? I didn't know that. Same with other rechargeable chemistries? Pretty expensive batteries. Around here they run $47-48. |
#8
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Ni-Cad Battery Storage
Smitty Two wrote:
In article , wrote: On Fri, 4 Jan 2008 12:03:21 -0800 (PST), komobu wrote: Hi; I picked up an 18 volt Dewalt Cordless Drill and a Dewalt Impact gun that use the same batteries. Each item came with 2 batteries so I now have 4 batteries. Batteries cost 90 dollars each and I have four of them. I would like to store two of them for a couple years. I would use two of them now, and then when they go bad, break out the other two. Is it possible to store these batteries? What is the best way to accomplish this if it is possible? Thanks Pat They can be stored for years and years without maintenance or degradation. Just store them in a mostly discharged state preferably in a cool area. Never freeze a Ni-Cad or run the battery down below .8 volts per cell. Hmm. Wouldn't storing them for years run the voltage down below .8 volts per cell? Best to use them in rotation schedule. They'll actually last longer that way in the end as you'll get the rated # of charges accurately and if one battery is NG it'll show up faster so you can get it replaced. NiCads don't actually have an indefinite shelf life. Permanently storing two of them is almost sure to give you headaches when you come to try to use them, especially based on some of the pure SWAGS I see posted here for you. Storage longer than a year is never recommended with 6 months being the "norm", under proper conditions. The basics of storage of such batteries can even vary by manufacturer and process, so it's always wise to use the horse's mouth for info rather than the other end as some of the posts here are providing. Had anyone (or YOU) taken the time, you could have found these two links and many more in just a second or so: http://users.frii.com/dlc/battery.htm and http://www.powerstream.com/Storage.htm which says, and which many other links agree with: Store NiCad batteries in a dry location with low humidity, no corrosive gasses, and at temperature range of -20°C to +45°C. Storing batteries where humidity is extremely high, or where temperatures fall below -20°C or above +45°C Because long term storage can accelerate battery self-discharge, and lead to the deactivation of reactants, locations where the temperature ranges between +10°C and +30°C are suitable for long term storage. When storing batteries for more than one year, charge *at least* once a year to prevent leakage and deterioration of performance due to self-discharging. When using a rapid voltage detection charger carry out charge and discharge at least once ever 6 months. ------------------------------- |
#9
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Ni-Cad Battery Storage
snip
When storing batteries for more than one year, charge *at least* once a year to prevent leakage and deterioration of performance due to self-discharging. When using a rapid voltage detection charger carry out charge and discharge at least once ever 6 months. ------------------------------- " charge *at least* once a year" snip "deterioration of performance" The above is if you plan on taking the batteries out of storage and using them at that time. If your storage is truly long term and you can take the time to charge and discharge a few times to bring the battery back into service and back to their rated capacity then there would be no reason to " charge *at least* once a year" You only get so many cycles out of a Ni-Cad. Why waste them? |
#11
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Ni-Cad Battery Storage
"komobu" wrote in message ... Hi; I picked up an 18 volt Dewalt Cordless Drill and a Dewalt Impact gun that use the same batteries. Each item came with 2 batteries so I now have 4 batteries. Batteries cost 90 dollars each and I have four of them. I would like to store two of them for a couple years. I would use two of them now, and then when they go bad, break out the other two. Is it possible to store these batteries? What is the best way to accomplish this if it is possible? Thanks Pat Make sure they are really ni-cads. Some of the other recharagabel batteries have a life time of around 2 to 3 years even if you do not use them. I think I would rotate all of the batteries. |
#12
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Ni-Cad Battery Storage
On Sun, 6 Jan 2008 15:02:08 -0500, Ralph Mowery wrote:
"komobu" wrote in message ... Hi; I picked up an 18 volt Dewalt Cordless Drill and a Dewalt Impact gun that use the same batteries. Each item came with 2 batteries so I now have 4 batteries. Batteries cost 90 dollars each and I have four of them. I would like to store two of them for a couple years. I would use two of them now, and then when they go bad, break out the other two. Is it possible to store these batteries? What is the best way to accomplish this if it is possible? Thanks Pat Make sure they are really ni-cads. Some of the other recharagabel batteries have a life time of around 2 to 3 years even if you do not use them. I think I would rotate all of the batteries. My experience is that nicads will last nearly forever as long as they are in use. Typically I'll recharge once or twice a week with universal remote control batteries getting least at about every three months. Leave the batteries unused in a draw somewhere for 9 months and they'll be ruined. Recharging twice a year might not be bad advice. |
#13
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Ni-Cad Battery Storage
On Sun, 06 Jan 2008 19:26:14 -0000, AZ Nomad
wrote: On Sun, 06 Jan 2008 13:58:40 -0500, wrote: snip When storing batteries for more than one year, charge *at least* once a year to prevent leakage and deterioration of performance due to self-discharging. When using a rapid voltage detection charger carry out charge and discharge at least once ever 6 months. ------------------------------- " charge *at least* once a year" snip "deterioration of performance" The above is if you plan on taking the batteries out of storage and using them at that time. If your storage is truly long term and you can take the time to charge and discharge a few times to bring the battery back into service and back to their rated capacity then there would be no reason to " charge *at least* once a year" You only get so many cycles out of a Ni-Cad. Why waste them? Do you expect somebody to store them for five thousand years? Of course not. Let's be a little more realistic. Pick 20 years. Would you rather fire up your vintage whatever with a battery charged/discharged two or three times a year for the last 20 years or would you rather retrieve a 20 year old unused Ni-Cad and bring it to life? |
#14
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Ni-Cad Battery Storage
My experience is that nicads will last nearly forever as long as they are in use. Typically I'll recharge once or twice a week with universal remote control batteries getting least at about every three months. My experience, 25 plus years tells me they will NOT even come close to lasting 25 years, even with normal use. Leave the batteries unused in a draw somewhere for 9 months and they'll be ruined. Recharging twice a year might not be bad advice. Please site a link as to how a Ni-Cad becomes unusable (non recoverable) after non use of 9 months. |
#16
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Ni-Cad Battery Storage
wrote:
On Sun, 06 Jan 2008 19:26:14 -0000, AZ Nomad wrote: On Sun, 06 Jan 2008 13:58:40 -0500, wrote: snip When storing batteries for more than one year, charge *at least* once a year to prevent leakage and deterioration of performance due to self-discharging. When using a rapid voltage detection charger carry out charge and discharge at least once ever 6 months. ------------------------------- " charge *at least* once a year" snip "deterioration of performance" The above is if you plan on taking the batteries out of storage and using them at that time. If your storage is truly long term and you can take the time to charge and discharge a few times to bring the battery back into service and back to their rated capacity then there would be no reason to " charge *at least* once a year" You only get so many cycles out of a Ni-Cad. Why waste them? Do you expect somebody to store them for five thousand years? Of course not. Let's be a little more realistic. Pick 20 years. Would you rather fire up your vintage whatever with a battery charged/discharged two or three times a year for the last 20 years or would you rather retrieve a 20 year old unused Ni-Cad and bring it to life? Except: You're just about guaranteed to not be able to bring it back to life after 20 years on the shelf. |
#17
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Ni-Cad Battery Storage
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#18
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Ni-Cad Battery Storage
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#19
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Ni-Cad Battery Storage
On Sun, 06 Jan 2008 23:12:21 GMT, Twayne wrote:
wrote: My experience is that nicads will last nearly forever as long as they are in use. Typically I'll recharge once or twice a week with universal remote control batteries getting least at about every three months. My experience, 25 plus years tells me they will NOT even come close to lasting 25 years, even with normal use. Leave the batteries unused in a draw somewhere for 9 months and they'll be ruined. Recharging twice a year might not be bad advice. Please site a link as to how a Ni-Cad becomes unusable (non recoverable) after non use of 9 months. If you've been reading, you already have a link available for that information. He hasn't the skill. |
#20
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Ni-Cad Battery Storage
On Sun, 06 Jan 2008 15:20:07 -0500, wrote:
On Sun, 06 Jan 2008 19:26:14 -0000, AZ Nomad wrote: On Sun, 06 Jan 2008 13:58:40 -0500, wrote: snip When storing batteries for more than one year, charge *at least* once a year to prevent leakage and deterioration of performance due to self-discharging. When using a rapid voltage detection charger carry out charge and discharge at least once ever 6 months. ------------------------------- " charge *at least* once a year" snip "deterioration of performance" The above is if you plan on taking the batteries out of storage and using them at that time. If your storage is truly long term and you can take the time to charge and discharge a few times to bring the battery back into service and back to their rated capacity then there would be no reason to " charge *at least* once a year" You only get so many cycles out of a Ni-Cad. Why waste them? Do you expect somebody to store them for five thousand years? Of course not. Let's be a little more realistic. Pick 20 years. Would you rather fire up your vintage whatever with a battery charged/discharged two or three times a year for the last 20 years or would you rather retrieve a 20 year old unused Ni-Cad and bring it to life? 20-40 extra cycles is nothing. |
#21
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Ni-Cad Battery Storage
Please site a link as to how a Ni-Cad becomes unusable (non recoverable) after non use of 9 months. If you've been reading, you already have a link available for that information. 9 months? Ridiculous to suggest it. A Ni-Cad sitting on a shelf may be unusable and drained but not unrecoverable. |
#22
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Ni-Cad Battery Storage
From the post you were responding to.......... Please site a link as to how a Ni-Cad becomes unusable (non recoverable) after non use of 9 months. ************************************* Please take a reading comprehension course. Which word in "my experience" don't you understand? I've had at least ten sets of batteries run for 2-3 years with no problems, go out of use, and then be unuseable after 7-12 months. I'll quote you "Please take a reading comprehension course." Does unusable equal unrecoverable? Who is it that needs the refresher? |
#23
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Ni-Cad Battery Storage
On Sun, 06 Jan 2008 23:12:21 GMT, "Twayne"
wrote: wrote: My experience is that nicads will last nearly forever as long as they are in use. Typically I'll recharge once or twice a week with universal remote control batteries getting least at about every three months. My experience, 25 plus years tells me they will NOT even come close to lasting 25 years, even with normal use. Leave the batteries unused in a draw somewhere for 9 months and they'll be ruined. Recharging twice a year might not be bad advice. Please site a link as to how a Ni-Cad becomes unusable (non recoverable) after non use of 9 months. If you've been reading, you already have a link available for that information. Please quote. I'll wait............. |
#24
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Ni-Cad Battery Storage
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#25
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Ni-Cad Battery Storage
On Mon, 07 Jan 2008 21:32:55 -0000, AZ Nomad
wrote: On Mon, 07 Jan 2008 16:11:52 -0500, wrote: From the post you were responding to.......... Please site a link as to how a Ni-Cad becomes unusable (non recoverable) after non use of 9 months. ************************************* Please take a reading comprehension course. Which word in "my experience" don't you understand? I've had at least ten sets of batteries run for 2-3 years with no problems, go out of use, and then be unuseable after 7-12 months. I'll quote you "Please take a reading comprehension course." I'll ask you again: which word in "my experience" don't you understand? I don't understand why you continue to talk apples when I have repeatedly talked oranges and pointed out the difference between the two. Does unusable equal unrecoverable? Who is it that needs the refresher? They are the same. Recovering nicads is a myth. Zap them and they'll fail again within a few weeks. A uncharged Ni-Cad is unusable but is certainly recoverable and then usable, so how can they be the same? Example: Ni-Cads sitting on the shelf at the local K-Mart for a year or more either as spare parts or included with a cordless phone. Are they unusable? Are they unrecoverable? |
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