Overview: All Eneloop batteries 2005-2018

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klrman
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I looked at amazon.jp and only found one listing for the HR-3UTGA-8SL but in the title they say it is AAA so not correct in their description. If ordering other than amazon.jp, yeah, not so easy.

ChibiM
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I was looking at auctions.yahoo.co.jp it was even hard for me to order while living in Japan... 

klrman
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I saw that on yahoo auctions too but it seemed too complicated so I moved on lol

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Hahaha.  yep..

WalkIntoTheLight
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I ran some tests on the capacity of old Eneloops vs new (standard) Eneloops, and I thought the findings very interesting.

The old Eneloops are from June 2006, so 12 years old. The new ones are just a few months old, fresh out of the package.

First, the new ones. I did discharge capacity tests on four AA’s and four AAA’s. (At a 250mA discharge, down to 0.9v.)

For the AA’s, the first cycle average is 1917 mAh.
The second cycle average is 1972 mAh.

So, cycling increased their capacity by 2.9%. Not much, but perhaps worth doing if you want to squeeze the most out of them.

For the AAA’s, the first cycle average is 754 mAh.
The second cycle average is 778 mAh.
A 3.2% gain in capacity by cycling. So, similar to the AA’s.

Finally, I ran capacity tests on eight AA’s that are 12 years old. Probably around 200-300 cycles on them.

The average was 1852 mAh. The lowest value was 1797 mAh.

That means that Eneloops only lost 6.1% capacity after 12 years of use! Assuming they had the same initial capacity as my new cells, after a couple of cycles.

I was expecting 20%-30% loss in capacity, but they’re holding up extremely well. They can still be used for high-drain lights, though their internal resistance is noticeably higher than new cells.

With results like that after 12 years, I expect I’ll still be using them after 20 years.

I have NiMH cells that are a bit older than 2006 (which is when I switched over to Eneloops), but all of them have internal resistance ridiculously high, so are only useful for very low-drain applications. Their capacities average around 1000mAh.

klrman
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Thanks for those tests, very positive  for Eneloops.  I purchased Eneloops from Costo eons ago when they were sanyo's and remembered they all failed early.  Yesterday I was reading reviews on amazon.ca and the reviewers that gave one star, 2% of them,  mostly had the same experience with the  new Eneloops as I did in the past.  it seems a certain percentage of these batteries are duds and Panasonic does not stand behind them and has no written warranty on them.  Am I wrong or is it true that Panasonic does not warranty eneloops?

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@walkintothelights: That is awesome. Enough proof that they are the best NiMH batteries in the world. lol. So only a minor % they lost over the years.. show me any other brand that has that. 

 

@klrman: I haven't heard of too many eneloops failing within a few years except for the PRO or heavy used ones. Other batteries would probably have died way earlier in thos situation!

 

I just watched some comments on Amazon, and they confirm my suspicion. 1. they don't know anything about batteries. 2. they use a bad charger, 3. they dont know how to charge them. 4. they probably don't know what happened to the application they used them in. (water, reversed inserted etc)

I may be wrong, but I'd like to see those batteries with my own eyes, or read from a reputable source that eneloops die within 1 week or don't hold a charge.. that is just unbelievable. The people who complain are generally not very convincing.

Really the people who are giving them 1 star are just regular people who don't know how to use batteries in general. Big Smile

I almost want to copy some of the comments here for critique, but I may sound even more like a @$$^(^&(  Big Smile

But I need to add that I saw some cases that they definitely have a point! 

LightUpTheDark
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I still have and use Costco AA Eneloops from 2008 in my 6-cell lights (one a Fenix TK40 with MC-E and a ROP-Lo Mag2D) . Well they are used as standby emergency lights but they still give a voltage reading of 1.3+ volts after sitting on the shelf or cabinet for 4months plus.

I’ve got a thrower, a flooder, and an EDC too. Still looking for a bigger thrower, flooder, and a new EDC, give or take a few. I’m a flashaholic.

klrman
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ChibiM wrote:

 

I just watched some comments on Amazon, and they confirm my suspicion. 1. they don't know anything about batteries. 2. they use a bad charger, 3. they dont know how to charge them. 4. they probably don't know what happened to the application they used them in. (water, reversed inserted etc)

 

 

aaaaahhhh.......probably me years ago   I got the Sanyo's from Costco at the time and used whatever charger I had at home.  As I look through my old chargers today, I'm pretty sure it was my Rayovac PS33 charger which probably cooked them too much?

ChibiM
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hahaha. Sure, me as well Smile My first 'real' charger was a Voltcraft 1PLC (or something) which is equal to the BC700 Lacrosse, but it died on me. I still have another one I gave to my parents (which they didnt know how to use) and replaced it with a BQ-CC55 charger for them... just pop them in and be done with it. 

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I just updated the different PDFs on the website with the overviews..
all regular eneloop batteries 2005-2018 and all eneloop limited editions 2009-2018

Tanner
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I’ve found that my 11 year old eneloops are mostly still well over 1900. Although mine did start out higher than advertised. Out of a batch of 16 I only had two at 1720 and 1767. Not bad at all. I used them mostly in my 2 x AA flash lights, my camping lantern and my hand held GPS. They have been constantly in use. My AAA’s of the same age have had very little use and they are still above the rating on the label. They have saved me lots of money over the years!

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Tanner wrote:
I've found that my 11 year old eneloops are mostly still well over 1900. Although mine did start out higher than advertised. Out of a batch of 16 I only had two at 1720 and 1767. Not bad at all. I used them mostly in my 2 x AA flash lights, my camping lantern and my hand held GPS. They have been constantly in use. My AAA's of the same age have had very little use and they are still above the rating on the label. They have saved me lots of money over the years!

Exactly!

It's a little investment that pays back 100%!

Tanner
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I don’t know what the best deals on Eneloops are right now, but I’ve been ordering them from Horizon Battery on eBay. I just got some in the mail and they are still the made in Japan version, all 12 tested above 2000, most where 2050MaH or so. I have some of my 10, 11 and 12 year old ones that measure about the same. These batteries last a long time at rated capacity. I paid $24.95 last week for mine, looks like they are $28.79 now: Horizon Battery

I put four AA’s in service back in 2006 to power my handheld Garmin I mounted on my dual sport motorcycle, those batteries are still in use and still holding a full charge today. I keep two in the Garmin all the time and two are in reserve in the bike’s luggage. Those batteries have been cycled many times, I saved a lot of money using the Eneloops over alkyleaks. I started using these in 2006, those were my first set I bought. Haven’t thrown any away.

The two that are in the 1700’s I let get discharged for too long in my Fenix torch that I lost for a couple years or so. Found it under a car seat covered in dust stuck under the carpet partially, the batteries were very low. So those two were abused, the light was low on power when I lost it, but the batteries are still usable today in my computer mouse. Tough little suckers.

ChibiM
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Tough little suckers.. That's an excellent conclusion. 

I've seen horizon battery mentioned a couple of times. It looks like they are probably a trustable source to get them from. Do they ship worldwide?

Tanner
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They do appear to ship to many countries. On eBay I think its US only, but they have international shipping options on the website :“Horizon Eneloops”:https://horizonbattery.com/collections/aa-rechargeable-batteries-low-dis...

The prices on eBay have been less in the past for US buyers, but right now the prices are a little lower on their website. Probably best for US buyers, they are located up in New Jersey.

I actually paid $24.76 for 12 AA’s during a sale on eBay. They are in packs of 4 wrapped in clear plastic. The prices went up last week, they are around $27 now with shipping. Still a good price for 12 Japanese batteries that will last for many years.

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Tanner wrote:
I don’t know what the best deals on Eneloops are right now, but I’ve been ordering them from Horizon Battery on eBay. I just got some in the mail and they are still the made in Japan version, all 12 tested above 2000, most where 2050MaH or so.

What charger do you test them in?
Tanner
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Pete7874 wrote:
Tanner wrote:
I don’t know what the best deals on Eneloops are right now, but I’ve been ordering them from Horizon Battery on eBay. I just got some in the mail and they are still the made in Japan version, all 12 tested above 2000, most where 2050MaH or so.
What charger do you test them in?

Those were put on a 4 slot LiitoKala Lii-500. I had it on the 700 mah setting.

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Tanner wrote:
Pete7874 wrote:
Tanner wrote:
I don’t know what the best deals on Eneloops are right now, but I’ve been ordering them from Horizon Battery on eBay. I just got some in the mail and they are still the made in Japan version, all 12 tested above 2000, most where 2050MaH or so.
What charger do you test them in?

Those were put on a 4 slot LiitoKala Lii-500. I had it on the 700 mah setting.

Hmm… I’ve never tried testing my Eneloop capacity on Li-500. I guess I should try it. On my Opus, none of them go above 1900 mAh.
ChibiM
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I just passed the 100 likes on the eneloop101 facebook page. Soon I will do a giveaway, so if you want to join, go over to https://www.facebook.com/eneloop101/ and like the page.. 

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Liked!  :THUMBS-UP:

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The giveaway has started..

Like the FB page, and join the giveaway by guessing a number between 1 and 100,000

closest number wins 

https://www.facebook.com/eneloop101/

 

alternety
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I just looked at the link for Horizon Battery. They have 800 mah AAA Eneloops for $10.15/4. They also have an Ansmann AAA for $9.79/4. They are rated for 1100 mah.

Any info on that Ansmann? Seems a bit excessive.

ChibiM
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alternety wrote:
I just looked at the link for Horizon Battery. They have 800 mah AAA Eneloops for $10.15/4. They also have an Ansmann AAA for $9.79/4. They are rated for 1100 mah. Any info on that Ansmann? Seems a bit excessive.

 

I don't know anything to say about the Ansmann, but you could start a new thread or look for HKJs tests. 

If you gonna use them 1 by 1, you should probably be okay with the Ansmann. In series I dont know how reliable they are. Eneloops are usually the same in performance and only differ very minimally. While other brands tend to have a much greater difference between batteries, so one might have less capacity and be drained deeper during discharge than the other batteries. This will only get worse the more you use them together.

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Not sure if I can ask here, since this is the Eneloop thread, but I have a question about FDK/Fujitsu LSD NiMh.

I saw in local stores of 2 kinds of FDK AAA NiMh — they look similar, but one is marked HR-4UTC(2B) while another is marked HR-4UTCEX(2B).
The difference is the HR-4UTC(2B) is in Japanese (and while I can’t read Japanese, I think the numbers seem to indicate 70% capacity remain after 10 years).
The HR-4UTCEX(2B) is in English (and the card box indicates “retains 70% after 5 years”).

So it would seem the HR-4UTC(2B) is better (10 years retain 70% vs 5 years for the other), although these could just be changes in markings.
Are they from the same generation (maybe just sourced from different markets)?

ChibiM
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The former looks the newer version with the 10 years claim. If they both cost the same and if thats a reason for deciding, I would go with the newer ones. 

alternety
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chibim – I looked at the table you have published. It shows for the AAA a part number of BK-4MCC A/E for both a 5 year and 10 year version. How can the correct item be identified as the newer 10 year lifetime? I am not seeing a clear differentiator when trying to buy some.

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Hi alternaty, you are correct. The product number is 4mcce or 4mcca (usa) both for the older and newer one. The only way you can see it, is by looking at the 10years vs 5 years claim. 

 

Some sellers might not even now it, and leave the original specs and product pictures of the older version online. 

 

Just make sure you can see they have the 70% after 10 years...which by now all major stores/online stores should have anyhow, because the newest eneloops already have been on the market for 3 years.

 

Take care.

lohtse
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I know this has probably been answered else where but couldn’t quite find the answer..

What CAN’T you use these batteries for??

Can we use them in ANY device that takes AA/AAA batteries???

regards
Lohtse

Caving, Climbing, Mountaineering, Kayaking, Diving etc any time anywhere!!! If you in the UK let me know and lets Play!
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They can be used in Most devices that take Alkaline batteries. 

Especially in flashlights it's common to use rechargeable batteries.

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