should i buy Sanyo Eneloop AA 16 Pack reviews

An extra of 500 charging cycles - instead of being rechargeable 1000 times, the new eneloop is even rechargeable up to 1500 times. Improved self-dischcharge. Even though the self discharge of the old eneloop was already very impressive, you can store the new eneloop for 3 years and still it will retain 75% of its capacity. You need a battery, which is reliable even when having cold temperatures? Before eneloop was suitable for temperatures as low as -10°C - now even until -20°C. The new eneloop is even more environment-friendly as it is pre-charged with solar energy in Japan There are some heated accusations asserting that those new (1500 cycles) eneloop cells sold by Amazon partners are counterfeit products. However, notice that none of the accusers actually bothered to test the batteries they received, to verify whether those are indeed fake eneloop cells. They simply recited (mis)information circulating on the Internet as 'proof'.

I ordered the new  and they arrived in two 4-packs. The packages are shiny and looked different from the blue/green version found on other product pages (such as the . With so much talk about counterfeit eneloop going around on the Internet, I was initially suspicious about the authenticity of those cells. However, after carefully examining and testing them, I am convinced that those are 100% genuine eneloop cells.

Here are my test results, using the old :
- Right out of the package, their average remaining charge is 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, their average capacity improved to 2115mAh
- After two more recharge/discharge cycles, their average capacity leveled off at 2133mAh, or more than 6% higher than the rated capacity.

The above results are very consistent with what I have previously observed, while testing second-gen eneloop cells in the  last year.

To debunk some of the Internet mis-information about alleged counterfeit eneloop cells:

- 'Misprint' found on the battery?
The original eneloop cell contains this warning statement:
"DO NOT DISPOSE OF IN FIRE, NOR SHORT-CIRCUIT."
The newer (1500 cycles) eneloop cell contains this statement:
"DO NOT DISPOSE IN FIRE,NOR SHORT-CIRCUIT."
Some people claim that the missing space between 'FIRE,' and 'NOR' means it is counterfeit. However, the exact same prints are found on the 2nd-gen eneloop cells from the Costco package last year, and even on the newest cells. See the customer image I uploaded to 'Customer Images' section.

- Lack of 'vent holes' on the positive terminal?
Most people don't realize that the actual positive terminal of a NiMH cell is flat. The 'bump' we see is just an attachment, to make the cell physically compatible with old zinc-carbon cells. Those slits we see on the original eneloop cell are not vent holes at all, because the real vent is part of the cell, and is hidden underneath the 'bump'. Sanyo has changed the shape of the 'bump' in the new eneloop cells for cosmetic appearance (I presume), and it has no bearings on the quality of the battery.

In conclusion: Not everything found on the Internet is true (Shocking, I know). So do your own research and find out the truth. At least as of right now, I have seen no evidence that any new 1500-cycle eneloop cells sold by Amazon partners are counterfeits. As Bill Murray said in 'Stripes': "That's the fact, Jack!"

[Update on July 31, 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 is 88.7%. This charge-retention rate is slightly better than that of the original eneloop, but the difference is within margin of error for my experiment. This is the third time I've ordered eneloops from amazon.
As far as batteries go, these are great. don't have much to compare them to, but the fact they can be charged over and over and over has me buying more and more of these which saves money in the long run.

This loses one star for the following 2 non-performance reasons:
1. They NEVER (these included) come fully charged. These most recent ones have been charging for an hour and they still aren't charged up. My other two purchases took around 3 hours to be fully charged after unpacking(where normal charging is something in the area of 7-8 (I've never timed it).
2. This "16-pack" is advertised as coming with a case. But what it doesn't tell you is the case only works for 4 batteries, not the "16-pack" it is marketed as. And of course, it doesn't come as a 16-pack anyway. The same person that packaged the 4 separate packages of 4 batteries each included just one single 4-pack plastic holder.

Wow! These batteries came amazingly fast, I couldn't have asked for anything better and they were delivered faster than I could have ever thought possible!

The batteries come in 4 separate 4-packs. They also came with 2 battery cases! One that holds 8 batteries and the other holds 4 batteries. This is perfect for me.

Also, the batteries had a full charge when I opened them! I expected less, much less, closer to 50%, I couldn't believe they were still holding full charges, all 16 batteries!

This is my first set of rechargeables and I chose these Eneloop's after reading every single review I could find out there on them. I must say, I'm very impressed. I did date my batteries and categorize into groups of 4 - group A,B,C,D. I'll charge and use each set of 4 together...

So far, these batteries, straight out of the packaging, with no charging have out performed my 8X Lithium Ions I've been using for the last several years! I used these now in my Speedlights and I'm extremely impressed so far with the performance!

Wow, they say that I'll get 1500 recharges out of these, if I get half of that, I'd be thrilled! These batteries put money right back into my pocket! I'll keep 1 pack of the 8X lithium Ions in my camera bag for emergencies, due to their long shelf life, but I'm telling you, I don't think I'll ever need them! These are really great!

I wound up ordering these with some degree of skepticism towards the reviews on line. I had always been used to rechargeables that you had best charge (and trickle charge) up to the point of using them. I have a set of four AA's that I keep in my Canon 430EX II flash and it is ready to go in seconds and delivers rapid recharge times even after sitting in my gear bag for months! I posted a video of this on youtube which can be see if you search for "canon speedlite 430EXII Flash demo." Even on heavier use items (flashlights, wireless headsets, game controllers, camera's) they hold a charge well. Worth every penny with a surprising shelf life! I received my batteries today, one pack was pre-opened. The batteries had a charge and didn't look used but still odd.

The free AA battery holder is REALLY cheap. I will add a customer photo that shows it. It will probably handle being closed and opened < 10 times and then the plastic hinge will fail.With my flash extenders (8 - AA's each) + 4 more AA's in the flash, over 200 strobes flashed for the shoot, and there was still power & ability left. So far I'm real happy with these, and hope I'll get the 1500+ charges out of these! And that they hold their charge while in storage (that will be the next test).Went through the highly discounted overseas purchase of NiMH AA rechargables--they proved to be unreliable and won't take a full charge to their states mA rating. These Sanyo batteries are time-tested and clearly perform as they're supposed to. Currently running 40 of them on a nightly basis without any problemsI bought this pack along with the La Crosse BC-700 charger. The batteries are great, I use them in many devices ranging from keyboards, scales to mice. I have not had any problems with them so far and I've owned them for almost a year now. From what I've gathered online, these batteries are the same exact batteries that Apple sells as their rechargeable batteries. So basically Apple takes the Eneloops and rebrands them with the Apple sticker and logo and marks them up. You are paying a lot less for the same batteries that Apple is selling out there right now, that made me very interested in purchasin these batteries. Again, so far so good, it's been almost a year and they've held up to my use.I have been using these for a year now and they are still as good as new. I use them in my Canon 580 EXII flash at weddings and they will usually last an entire day, depending on how often I use the flash. I can usually get about 300 to 400 flashes at 1/4 power out of these batteries, which is incredible. I ordered the big pack because I now use these batteries in everything from Xbox controllers to remote controls to my beard trimmer. They last forever and recharge quicklyJust got my batteries April 17, 2012 and all 4 packages have expiration date Feb 2011. Only 1 cheesy 4-pk battery case although I really don't care about that I figured I'd mention it for those that do care. I'm very upset about having expired batteries though. At nearly $2.50 per battery, I feel this is inexcusable.be happier.
I learned the hard way about rechargeable batteries discharging when I got to an event and found my batteries were near dead. (I had back-up non-rechargeables in my bag).
Either way, I ordered this set of 16 yesterday morning and got back from lunch to find them sitting on my desk at the office!
Packaging appears to be retail.

Wow! These batteries came amazingly fast, I couldn't have asked for anything better and they were delivered faster than I could have ever thought possible!

The batteries come in 4 separate 4-packs. They also came with 2 battery cases! One that holds 8 batteries and the other holds 4 batteries. This is perfect for me.

Also, the batteries had a full charge when I opened them! I expected less, much less, closer to 50%, I couldn't believe they were still holding full charges, all 16 batteries!

This is my first set of rechargeables and I chose these Eneloop's after reading every single review I could find out there on them. I must say, I'm very impressed. I did date my batteries and categorize into groups of 4 - group A,B,C,D. I'll charge and use each set of 4 together...

So far, these batteries, straight out of the packaging, with no charging have out performed my 8X Lithium Ions I've been using for the last several years! I used these now in my Speedlights and I'm extremely impressed so far with the performance!

Wow, they say that I'll get 1500 recharges out of these, if I get half of that, I'd be thrilled! These batteries put money right back into my pocket! I'll keep 1 pack of the 8X lithium Ions in my camera bag for emergencies, due to their long shelf life, but I'm telling you, I don't think I'll ever need them! These are really great!