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3 thoughts on “Sanyo NEW 1500 eneloop 4 Pack AAA Ni-MH Pre-Charged Rechargeable Batteries

  1. NLee the Engineer says:
    style=”margin-bottom:0.5em;”> 1,256 of 1,283 people found the following review helpful:
     5.0 out of 5 stars are genuine second-generation eneloop cells – as far as I can tell , 20th April 2011
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    I have done extensive testing on the target = original eneloop batteries since early 2007, shortly after they were introduced in the United States. I have also tested the blue second-generation eneloop cells from the Costco eneloop package back in 2010. But this is the first time I have seen second-generation eneloop in white packaging sold in the United States. Concerns with so much talk about counterfeit eneloop, I was understandably cautious when I SANYO NEW 1500 eneloop 8 Pack AA Ni-MH batteries charged . Tested
    I have four of these cells, a with my old <. target = "_top"> La Crosse BC-900 battery charger
    – Right out of the package, their average remaining charge 1568mAh, or nearly 80% of the rated capacity of 2000mAh. The spread is also very small, from 1558 to 1577mAh. This proves that they are indeed low-self-discharge type. (Date code on my cells says “11-01”, or Jan 2011)
    – After one recharge / discharge cycle, the average capacity improved
    2115mAh – After two more recharge / discharge cycles, the average capacity leveled off at 2133mAh, or more than 6% higher than the rated capacity.
    The above results are very consistent with what I previously observed, while testing second-generation eneloop cells in the Costco package. Therefore, I am convinced that the fact is true second generation Sanyo eneloop cells. (See the scans I uploaded Customer Images section, if you need to distinguish between old and new eneloop cells)
    On the other hand, currently the prices of those new eneloop cells are about 25-50% higher than that of original eneloop cells. One may ask: to have the new eneloop cells offer sufficient improvement over the old, justify the price be? Let’s compare the following factors:
    – Cycle Life: The 2nd Generation eneloop claims that “charging up to 1500 cycles”, while the original only claims 1000 cycles. This 50% improvement looks great on paper, but note that if you recharge your eneloop twice a week, it will take 10 years to reach 1000 cycles. So in real life, most average users never notice the difference
    – Self-Discharge Rate:. The new eneloop cells claim to “maintain 75% charge after 3 years”, while the original only claims “80% after 2 years.” In real life, most people will never notice the difference
    – Capacity:. First-tions eneloop AA cells have “Typ 2000mAh, Min 1900mAh” printed on them, while the second Generation eneloop AA cells only say “Min 1900mAh”. But in fact they have the same capacity rating of 2000mAh (typical) according to official Sanyo web site. My measured capacity numbers are actually around 2100mAh for both versions
    BOTTOM LINE:.
    Both the old and new eneloop cells are excellent products. You can mix and sure to tell them in any application, and no one can make the difference in the next 10 years. But if you can not decide which version is a better value … Only a coin and pick one – you can not lose either way
    [update on 31 July 2011]
    Long-term self-discharge data: I have tested a pair of new eneloop AA cells after 104 days sitting on the shelf (the batteries, not me). The average remaining charge to 88.7%. This charge-retention rate is slightly better than that of the original eneloop, but the difference is in error for my experiment.
    [Update 8 May 2012]
    Today the second-tions eneloop cells are typically priced lower than the original. . So you should definitely get the newer version in case you for my “Sanyo eneloop FAQ” Just looking
    , it can now be found here: http://www.amazon
    . com/review/R9VPVQ0UO2MKH

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  • NLee the Engineer says:
    style=”margin-bottom:0.5em;”> 295 of 307 people found the following review helpful:
     5.0 out of 5 stars Second-tions eneloop better than the first – by a hair , 30th April 2011
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    target = NLee the engineer (Nashua, NH) –
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    This review is from: Sanyo NEW 1500 eneloop 4 Pack AAA Ni-MH-charged batteries (Electronics)

    This package ( Sanyo SEC HR4U4BPN ) contains four second-generation eneloop AAA. I have tested this with my old cell La Crosse BC-900 Advanced Battery Charger . Here are my findings:
    – Right out of the package, the average remaining charge is 640mAh, or 80% of rated capacity (800mAh)
    – increased after the first charging cycle, the average capacity of 839mAh.
    – After two more recharge / discharge cycles, the average capacity leveled off at 843mAh, or 5% higher than rated capacity
    The above is very consistent with the results that I received last year. When testing the second Generation eneloop AAA cells from the Costco package “_top”> . Therefore, I have no doubt that those batteries are genuine. Date stamping them fitted says: “10-12”, which means Dec 2010 (see my upload in the “Customer Images” section, if you know where to find the date code). After
    Sanyo press releases, these second-generation eneloop cells several advantages over the original eneloop “_top”>
    :
    – Can charged “up to 1500 cycles” (vs. ” 1000 cycles “for the original) are
    – Can hold” 75% charge after 3 years “(vs.” 80% after 2 years “)
    – Works up to -20 degree C (vs. – 10 degrees C
    ) In real life, however, it is almost impossible for the average user to experience those benefits. Note that even if you recharge your cells twice a week, take it to reach almost 10 years up to 1000 cycles. Moreover, the self-discharge advertised for new and old eneloop cells are actually the same during the first 2 years
    What capacity. Original eneloop AAA cells have “type 800mAh, 750mAh Min ..” printed on them. The new eneloop AAA cells only say “Min 750mAh”. This has confusion for some people who have the new version have a lower capacity created. But according to Sanyo web site, the capacity of the new AAA is also 800mAh typical. My own test results have shown that the measured capacity of the original eneloop is around 4% higher than rated, whereas the capacity of the new eneloop is about 5% higher than rated. Again, the difference is so small that most users never notice
    BOTTOM LINE:. do
    Second generation eneloop cells offer several improvements over the original, but the actual benefit is very hard to verify in real life. In my case, the price I paid for this new eneloop AAA package is only 10% higher than that of the old one, so I think it is a good deal. If the price difference is much larger, then you must decide whether it is worthwhile to pay extra for those perceived benefits.
    [update on 31 May, 2011]
    Prices for the new eneloop AAA came down further during the last month, so now it’s an even better deal. But only if you’re looking for a bigger bargain, you can ReCkyo GP Pre-Charged AAA cells
    . They are priced lower than Sanyo eneloop, and have slightly higher capacity (rated 850mAh, measured 880mAh)
    [update on 31 July 2011]
    Long-term self-discharge data:. I tested a pair of new eneloop AAA cells after 92 days sitting on the shelf (the batteries, not me). The average remaining charge is 89.4%. This charge-retention rate is slightly better than that of the original eneloop, but the difference is in error for my experiment.
    [Update 3 July 2012]
    Amazon reunited several Sanyo eneloop products (many AA / AAA packages and different chargers) to see in a single product. This makes it very difficult for people to find reviews for a particular product. Especially my “Sanyo eneloop FAQ” was previously on the product page of Sanyo eneloop 4 Pack AA , but now it can only be found at the following link:

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  • NLee the Engineer says:
    style=”margin-bottom:0.5em;”> 251 of 263 people found the following review helpful:
     4.0 out of 5 stars > Excellent batteries, mediocre charger , 5 May 2011
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    This package ( SANYO NEW 1500 eneloop 4 Pack AA Rechargeable Ni-MH Pre-Charged Batteries w / Charger ) contains four second-generation ‘1500 cycles’ eneloop AA cells plus the “MQN06” 4-cell charger
    I checked this new second-generation eneloop cells about one year ago by the Costco eneloop package , and more recently by the SANYO NEW 1500 eneloop 8 Pack AA . I can honestly say that, while have the old and new eneloop are excellent products, their difference in performance is hardly noticeable. Both versions exactly the same capacity rating of ‘Type 2000mAh, 1900mAh Min “. Actual measured capacity, using my old La Crosse BC-900 , is actually about 5% higher at about 2100mAh average .
    Some advertised improvements of the new eneloop cells looked impressive on paper, but not easy to verify in real life. For example, the new cells to make 50% longer life have (from 1000 to 1500 cycles). But note that even if you recharge your eneloop twice a week, it takes about ten years before you can realize the difference in battery life. The new eneloop also claims to “hold 75% charge after 3 years” in storage, while the old only claims “80% after two years.” In real life, most users never see any difference. But then again, it does a warm and fuzzy feeling to know that you. always get the latest and best batteries on the market (At least until the 2500mAh Sanyo “eneloop-XX” is)
    Mechanically, there are some very minor differences between original and new eneloop cells (See my upload in the Customer Images section distinguish between old and new). Note that assert some confusion about “vents” on the latest eneloop cells. Some poeple even that cells are fakes with no visible vents. But I have tested two batches of new eneloop cells with and without the “air holes” and found them to be identical electrically . So I am confident that the latest batch I received are genuine.
    MQN06 Sanyo 4-cell battery (included in this and many other eneloop packages) is a big disappointment. Here’s what I do not like about this charger:..
    – It charges in pairs only, this is very inconvenient for appliances that take odd number of cells when loading a cell depleted try along with a half-full cell, the charging process stops as soon as the second cell full, which means
    the first cell is still half empty – The charging current is very low. 300mA for AA cells, 150mA for AAA cells That is, it takes about 7 hours to make a pair. exhausted eneloop AA cells charge
    . – If you leave a pair of charged cells in an unplugged MQN06, there is a leakage current of 0.5 mA, this means a loss of 12mAh per day in other words, is.. set of 2000mAh cells in approximately 5 months are exhausted .. That wipes the ‘low-self-discharge’ benefit eneloop cells

    CONCLUSION:
    Over the past four years, I’ve found the original Sanyo eneloop cells to be the most consistent and reliable NiMH cells I have ever used. I can recommend the new eneloop based on my past experience. On the other hand, I find it inexcusable that Sanyo continues the best rechargeable batteries with such a mediocre bundle. So you might want a package that comes with a better charger, such as the Sony Cycle Energy BCG34HRE4KN needed , and then buy more Sanyo eneloop cells. The SONY charger can handle each cell individually, and it can be used to recharge any other brands of LSD cells.

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