Overview: All Eneloop batteries 2005-2021

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ca999
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Yes there are 4 vents at the positive terminal. Are they the 4th gen like mine? And what is the date code format?

Leif
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Okay, your packet says made in China, so those are probably genuine, but not Japanese. The latter are the best, and made by FDK in Japan. The Chinese ones are inferior, and probably Panasonic Evolta under the skin. Evolta replaced Infinium, but might have been little more than a name change. They are a good battery, but do not last as many charge cycles as Japan made Eneloop.

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Lilien
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ca999 wrote:
I just bought a set of 4th gen eneloops, from a local retailer. The code printed is BK-3MCCE. I am not sure whether they are legit.

Seems legit, but made in China (cells made in Japan are better).
ca999
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Yup, I am aware that mine are the inferior chinese build. They are the best I can get from my local retailer. I dont mind using them, I just dont trust fake product. If they are fake, I will ask for a refund.

myhken
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Ordered the new editions:
BK-4MCC/8TN
BK-3MCC/8TN
directly from Japan now. (I just wanted the newest). But they was not free…$6.5/battery when I order two 8 packages of AA and one packages of AAA.

Anybody that know the real price per package in Japan?

16.December 2015:

Kenneth Myhre

ChibiM
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Prices in Japan go up and down almost daily. These are new, so probably around 20-25 usd, shipping would be another $4 per pack. PayPal eats $1,50 and they take a $1 exchange fee again when you withdraw the money in Japanese yen. 

You can do the math. But 6,5usd per battery you paid is quite a lot.

myhken
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ChibiM wrote:

Prices in Japan go up and down almost daily. These are new, so probably around 20-25 usd, shipping would be another $4 per pack. PayPal eats $1,50 and they take a $1 exchange fee again when you withdraw the money in Japanese yen. 

You can do the math. But 6,5usd per battery you paid is quite a lot.

It was from the first and then only seller in Japan I got them, now there is several sellers from Japan, and the price is down to around $3.75/battery. Still direct from Japan.
Can you read the circular picture on the package (from my picture in my last thread) and confirm/not confirm that this is the 10 years batteries as well? I can see the number 10 there, but don’t understand the rest.

Kenneth Myhre

ChibiM
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No, that means it's a 10th anniversary edition.

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ChibiM wrote:

No, that means it’s a 10th anniversary edition.

ok.So only export batteries have 10 years shelf life?

Kenneth Myhre

arow55
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Wonder why eneloops are not sold alongside the rayovac, energizer, durecell in most retailers? Or at least a rebranded 2000 mah version?

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arow55 wrote:
Wonder why eneloops are not sold alongside the rayovac, energizer, durecell in most retailers? Or at least a rebranded 2000 mah version?

Might be because most people don't know about them, and therefore sellers are less likely to sell them. With this in mind, they are usually more expensive than other brands outside Japan, that it's difficult to sell them..

Don't know exactly but I thought this could be the case Wink 

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Atrayus wrote:
Here you go guys no more hunting or guessing. The new eneloop................. Fujitsu Ready to use hr3utc http://www.amazon.com/Fujitsu-Ready-rechargeable-battery-1900mAh/dp/B00P... Unless you are really die hard and want to keep ordering the paneneloops direct from from Japan or over ebay for more money. Sidenote im rather new and think I found an answer to the situation*, please excuse me if i am late to the party, just trying to spread the knowledge(as little as it maybe) :)

Yep, marked as spam. Just like your other post. No meaning of posting double, stuff everybody knows already.

Atrayus
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Werd, flag away flag boy

arow55
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All the talk about fakes has me worried about ordering online. What about a trusted source like walmart with their free store pick up like this http://www.walmart.com/ip/Panasonic-K-KJ17MCC82A-Panasonic-K-KJ17MCC82A-...

arow55
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kiriakos wrote:
arow55 wrote:
What about a trusted source like walmart with their free store pick up like this

Why spending that amount of money about buying a pile of plastic + one old technology charger + only few cells?
Just buy a package of eight cells instead, this comes in a better price if your search a bit.


I thought the charger was actually a smart charger with individual charging.
arow55
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Thanks for the explanation. What about just picking up duracells since they would not be fakes?

myhken
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I have not used Eneloop for a very long time, but is the statement made in this thread (Reply #2) http://www.ittsb.eu/forum/index.php?topic=1126.0

Quote:
No I am not an idiot and I am capable reading text in English. If I took seriously their printing information, this is saying that in five years time Eneloop cell capacity will deteriorate down to 70% , this translates that in ten years this will further deteriorate and become about 50%, this translates to 1000mAh capacity. Now their text about 10 Years, this translates that never used products them will retain from initial charge at the factory, about 70% of charge.

My understanding of the 90% after one year, 70% after 5 years etc just say that if you buy a package and it’s one year old, the batteries has 90% capacity. If you charge the battery, it will have 100% capacity again. And you can recharge it to 100% 2100 times, or 1900 times or what it says on the package? Anything else will be bad practice, if a 5 year old battery, new out of the box, just can be charged to 70% max, all 2100 times.

Kenneth Myhre

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No, that is not correct guys. 

This can actually be found in this thread anyhow. Just read.

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kiriakos wrote:
ChibiM wrote:

No, that is not correct guys. 

This can actually be found in this thread anyhow. Just read.

This thread have only marketing data collected over the internet, them are not measure up as true product performance indicators. These data are good only for product packaging identification.

Please read again.

ChibiM
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kiriakos wrote:
myhken wrote:
My understanding of the 90% after one year, 70% after 5 years etc just say that if you buy a package and it's one year old, the batteries has 90% capacity. When a battery is fully charged, and stored away for 1 year, it will have 90% capacity left, compared to a fully charged cell, not a battery that is new in a package, because eneloops never come fully charged out of the package
Battery capacity when new, this is known and measurable in Milli-ampere-hours. This simile to a number of good working pixels in a modern flat screen of 42" , them can be lets say 4200 pixels. Panasonic words about capacity them are interpreted always as this to be remaining number of good pixels in a LCD screen. Supposedly one good working battery which this has not yet a number of 2100 recharge times, this will have in five years 30% capacity damage.(70% does not mean it has capacity damage, its about what % is left after it has been charged fully, and stored away for 5 years...... Second generation Eneloop this was predicting such capacity damage at three years,No, its not about capacity damage! and I do agree that Eneloop they did posted a honest prediction. My own samples they do measure 30% capacity damage at about three years time of normal use. Low self discharge estimated percentage over time, this is a second number, this is a different parameter. I think that Panasonic marketing people them are not familiar with electrical specifications, and they do cause confusion to people. For now what I do accept as published specification from Panasonic, this is that my latest (2015) Eneloop then will shown 30% internal damage in five years. And this, it is an improvement if this get proved again as true (in five years from now). :)
myhken
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kiriakos wrote:
You are free to believe what ever you like.
I have buy and use almost every Eneloop generation of cells.

If you have that much of faith in your words, then only buy first generation Eneloop made back in 2009.
You will find them even today heavily discounted.
In your eyes they will look still fresh and undamaged.

You know that you talk to a guy that lived for some time in Japan and is VERY updated on Eneloops. I think you don’t know what you are talking about.

Kenneth Myhre

ChibiM
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kiriakos wrote:
You are free to believe what ever you like. I have buy and use almost every Eneloop generation of cells. If you have that much of faith in your words, then only buy first generation Eneloop made back in 2009. You will find them even today heavily discounted. In your eyes they will look still fresh and undamaged.

I think there are enough tests here and at CPF that will show what I meant.

What do you mean by "buy first generation eneloop made back in 2009"?
In Japan its very hard to find anything older than 4th generation eneloops, and in Holland I havent seen them anywhere for sale yet (in a street store). And in 2009 we got 2nd gen cells.

There are enought tests, that show that after sitting idle for several years, they came back to full capacity after charging. (or after a break-in/refresh if you like). Here one that had been stored for 3 years http://www.candlepowerforums.com/vb/showthread.php?412914-Eneloop-5th-Anniversary-GLITTER-AAs-38-month-test

HKJ
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kiriakos wrote:
I have just receive an answer from Panasonic Europe and I am sharing it here ... "http://www.ittsb.eu/forum/index.php?topic=1126.msg2725#msg2725":http://www.ittsb.eu/forum/index.php?topic=1126.msg2725#msg2725 My forum this is copyright protected.

They just confirm the 70% energy left after 10 years, i.e. nothing about the full capacity of the battery, that must be at least 70%, but as know from other testers it is larger.

And do you claim copyright on a Panasonic email?

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

light-wolff
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  • Capacity
  • Charge
  • Energy

Unfortunately, these terms always get mixed up. Almost everywhere.

Capacity (Ah) (more exactly: discharge capacity) is how much charge a battery can hold. Like the capacity of a bucket.

Charge (Ah) is how much is actually inside, i.e. how many Ah you can draw from it until it's empty.

Energy (Wh) is, well, energy. Similar to charge, but voltage also taken into account.

 

If a 2000mAh/2400mWh battery after 10 years has 70% capacity left, it is degraded to a 1400mAh battery.

If it has 70% charge left, then there are still 1400mAh inside, but it could still be a full capacity 2000mAh battery (i.e. one can recharge it an then discharge 2000mAh).

If it has 70% energy left, this means 2400mWh x 0.7 = 1680mWh energy. It says nothing about charge or capacity.

ggf31416
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Hello, I purchased these batteries from ebay from the vendor named shopgl, it came in a battery box, not in retail package. I would like to know if they look like genuine eneloops or do they look fake? There is no crown symbol on the batteries. The white line is not present in the batteries, it’s just overexposure of the picture.

They came with a voltage of about 1.35v, the date codes are 15-07 in one, and 15-10 in the other 3. The xtar vc4 charger reports that it charged 698, 895, 925 and 664mAh before termination (I think those numbers are not very reliable). I’m having some issues with the amperimeter mode in my DMM so i can’t test reliably their discharge rate at the moment.

264
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ggf31416 wrote:
Hello, I purchased these batteries from ebay from the vendor named shopgl, it came in a battery box, not in retail package. I would like to know if they look like genuine eneloops or do they look fake? There is no crown symbol on the batteries. The white line is not present in the batteries, it’s just overexposure of the picture.

They came with a voltage of about 1.35v, the date codes are 15-07 in one, and 15-10 in the other 3. The xtar vc4 charger reports that it charged 698, 895, 925 and 664mAh before termination (I think those numbers are not very reliable). I’m having some issues with the amperimeter mode in my DMM so i can’t test reliably their discharge rate at the moment.

!{width:60%}http://i.imgur.com/5yUjwKz.jpg!

I am not a battery expert. Your batteries look like mine. The positive end with the button is light grey, off white on mine. The latest version of Eneloops do not have a crown symbol printed on the AA size. Sounds like your Eneloops were partially discharged when you charged them hence the low amp reading.

ggf31416
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Thank you for responding. I just wanted a quick visual check, so in the case they were fake I would know what to expect of them, as the thread suggested they would have a crown. I already had some eneloops from a 10AA/4AAA pack from Amazon , but as they are a color edition rather than the clear one I could not compare them directly (except in size, weight and voltage).
I believe they are genuine now.

The only lsd battery that is somewhat available locally appears to be the Sony Energy, I don’t think the other locally available batteries (mainly Philips Multilife and budget chinese brands) are lsd.

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ggf31416 wrote:
Hello, I purchased these batteries from ebay from the vendor named shopgl, it came in a battery box, not in retail package. I would like to know if they look like genuine eneloops or do they look fake? There is no crown symbol on the batteries. The white line is not present in the batteries, it’s just overexposure of the picture.

I have bought eneloops and fujitsu batteries from that ebay seller in the past. They turned out to be good batteries – all were authentic. Smile

malkoff junkie
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Chibm, are you back selling batteries again ?.

Malkoff !

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Just picked up the Costco pack for $30. I’ve read that they’re cheaper than that sometimes, but not too bad for 8 AA, 4 AAA, 2C holders, 2D holders and a charger.

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