I mean how many years back in date codes would you go when buying NOS impress batteries?
Thx
P.
NOS IMPRESS
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SYNTORX71MAN
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NOS IMPRESS
Is there a shelf life span when looking to purchase NOS impress batteries?
I mean how many years back in date codes would you go when buying NOS impress batteries?
Thx
P.
I mean how many years back in date codes would you go when buying NOS impress batteries?
Thx
P.
Re: NOS IMPRESS
I have heard life span on average 8-10 years.
Re: NOS IMPRESS
Depends on how they are stored. Lithium ion batteries will age much quicker than Nickel based batteries in storage. I would not expect to get much more than 4-5 years out of a stored lithium ion battery.
If the radios are charged to about 40-50% before storage they'll last a year or two longer. Also storing them at room temperature will go a long way as well.
I recommend a visit to http://www.batteryuniversity.com , there's a wealth of info there and it's one of the most informative sites I've found related to this business.
PS. I disagree with their assertion lithium batteries will last 10 years. I got a box full of Li-Ion batteries from 2001 and cannot get them over 50% in my BOSII on priming cycles..
If the radios are charged to about 40-50% before storage they'll last a year or two longer. Also storing them at room temperature will go a long way as well.
I recommend a visit to http://www.batteryuniversity.com , there's a wealth of info there and it's one of the most informative sites I've found related to this business.
PS. I disagree with their assertion lithium batteries will last 10 years. I got a box full of Li-Ion batteries from 2001 and cannot get them over 50% in my BOSII on priming cycles..
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SYNTORX71MAN
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Re: NOS IMPRESS
Ahhhh...So If you buy NOS impresses from say......2001 to 2002...already 6 to 7 years old......even though they are new...they could possibly be bad or only 50% chargable....Hmmm makes bargins look much less appealing then...Should batteries be refrigerated? I have seen people/departments do this..kinda like camera film....Thanks for the link and intellectual insight...
Sincerly
P.
Sincerly
P.
Re: NOS IMPRESS
I suspect it will be hit or miss with those Ebay batteries but also keep in mind that the Li-Ion technology was not as developed back then as it is now so things may have changed.
I would definitely not store batteries in the fridge. Ideally they should be stored at room temperature in a dry, dark location. Low temperatures will have bad effects on batteries, esp Li-Ion and NiMH, and although NiCD is not as susceptible to problems from low temperatures it still would probably cause more harm than good.
I would definitely not store batteries in the fridge. Ideally they should be stored at room temperature in a dry, dark location. Low temperatures will have bad effects on batteries, esp Li-Ion and NiMH, and although NiCD is not as susceptible to problems from low temperatures it still would probably cause more harm than good.
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MTS2000des
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Re: NOS IMPRESS
Nicad's versus Li-Ions, my personal experience:
Oldest battery I've ever had that worked, an NTN5414 with a 1992-02 date code. Rated capacity was 1085mah on an analyzer- now the self discharge rate was in check, it would be dead flat in about 3 days of storage, but would last a full 12-14 hours of use if used directly off a charger. Not a battery I would put in a rotation for public safety, but goes to show you how long a Nicad can last.
I just got an HT1000 from a board member with 3 NOS NTN7414 Jedi batteries, all of them had been initialized in 2006, but had date codes of 335 (2003). All of them are at full capacity and are working fine, have had one on my MTS2000 since about 0800 yesterday morning (and it's 0230 and still no low battery beep).
I got some NOS Lithium Ion pro series batteries last year, they had 2001 date codes, was lucky to get 40 percent capacity, and three of the five stopped taking a charge altogether within 6 months.
Nickel metal hydrides also don't seem to last as long, I've got two NiMH XTS batteries that are dead, they were NOS, same time period as the above Jedi nicads. So it appears the winner for oldest longest lasting (over time) is the good old Nickel Cadmium battery.
come to think of it, my Norelco shaver I got when I was 16 still has it's original Nicad batteries in them, and they still take a charge. I use it everyday. That seems to be where Nicad shines, with proper cycling, you can yield the longest number of charge-discharge cycles over the life of the battery.
Oldest battery I've ever had that worked, an NTN5414 with a 1992-02 date code. Rated capacity was 1085mah on an analyzer- now the self discharge rate was in check, it would be dead flat in about 3 days of storage, but would last a full 12-14 hours of use if used directly off a charger. Not a battery I would put in a rotation for public safety, but goes to show you how long a Nicad can last.
I just got an HT1000 from a board member with 3 NOS NTN7414 Jedi batteries, all of them had been initialized in 2006, but had date codes of 335 (2003). All of them are at full capacity and are working fine, have had one on my MTS2000 since about 0800 yesterday morning (and it's 0230 and still no low battery beep).
I got some NOS Lithium Ion pro series batteries last year, they had 2001 date codes, was lucky to get 40 percent capacity, and three of the five stopped taking a charge altogether within 6 months.
Nickel metal hydrides also don't seem to last as long, I've got two NiMH XTS batteries that are dead, they were NOS, same time period as the above Jedi nicads. So it appears the winner for oldest longest lasting (over time) is the good old Nickel Cadmium battery.
come to think of it, my Norelco shaver I got when I was 16 still has it's original Nicad batteries in them, and they still take a charge. I use it everyday. That seems to be where Nicad shines, with proper cycling, you can yield the longest number of charge-discharge cycles over the life of the battery.
The views here are my own and do not represent those of anyone else or the company, the boss, his wife, his dog or distant relatives.
Re: NOS IMPRESS
I think you're confusing the technologies. Lithium (aka primary lithium) are one-shot, non-rechargable batteries - such as the Energizer E^2 Lithium AAs commonly recommended for photo applications, or the primary lithium packs made by Multiplier. Lithium-ion/lithium-polymer are entirely different beasts.escomm wrote:PS. I disagree with their assertion lithium batteries will last 10 years. I got a box full of Li-Ion batteries from 2001 and cannot get them over 50% in my BOSII on priming cycles..
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SYNTORX71MAN
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Re: NOS IMPRESS
But is a Cadex battery conditioning system better than a mototola impress charger for nicads?...Seeing how they are supposed to be discharged, conditioned(cadex) Vs smartcharging (impress)?
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videonerd
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Re: NOS IMPRESS
I don't have any fancy schmancy Impres displays, only a single unit Impress charger. FWIW, there were a few old XTS and Jedi NiCAD batteries it wouldn't charge (yellow light for a day) - I put 'em in an old Jedi overnight charger for a few hours, and then the Impres charger was happily charging them afterwards.