Sanyo Eneloop AA NiMH Pre-Charged Rechargeable Batteries - 8 Pack Details



Sanyo Eneloop AA NiMH Pre-Charged Rechargeable Batteries - 8 Pack Details


Product Description

The Eneloop 8 pack AA 2000 mAh is pre-charged and ready to use right out of the pack, very slow self discharge maintains 85% residual capacity, and combines all the features of an alkaline battery with the benefits of Rechargeable.


  • eneloop 8 pack AA 2000 mAh Pre-Charged and Ready to use right out of the pack.
  • Very slow self discharge maintains 85% residual capacity
  • Greater Power and Better Performance in lower temp than Alkaline.
  • Reused up to 1000 times and no need to worry about memory effect,able to charge only the amount you need.
  • eneloop combines all the features of an alkaline battery with the benefits of Rechargeable

Where to buy Sanyo Eneloop AA NiMH Pre-Charged Rechargeable Batteries - 8 Pack



Sanyo Eneloop AA NiMH Pre-Charged Rechargeable Batteries - 8 Pack Reviews


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1,863 of 1,895 people found the following review helpful
5.0 out of 5 stars Some new facts about LSD cells you should know..., January 6, 2007
By 
NLee the Engineer (Nashua, NH) - See all my reviews
(HALL OF FAME REVIEWER)    (TOP 10 REVIEWER)   
[Updated Oct 24, 2008]
My original review on the Sanyo eneloop NiMH cells was written nearly two years ago. Since then, I have learned a lot more about the characteristics about eneloop and other low-self-discharge cells. So it is time to clear up some inaccurate information I wrote about eneloop's self-discharge rate.

1. I was told that the Sanyo eneloop cells were not 100% fully charged when they leave factory. This makes sense because new cells are fast-charged in the factory to save time. In order to avoid problem with heat and gas built-up, they cannot be charged to 100%. I have tested some eneloop cells that were manufactured 20 months ago, and they still maintained about 70% charge. On the other hand, cells manufactured 6 months ago contain about 75% charge. This confirmed that the discharge rate is much lower than I previously estimated.

2. The self-discharge rate of eneloop (and other LSD cells) is not linear! My own testing showed that a fully... Read more
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1,800 of 1,842 people found the following review helpful
5.0 out of 5 stars LSD is great.... just keep away from heat!, January 8, 2007
By 
NLee the Engineer (Nashua, NH) - See all my reviews
(HALL OF FAME REVIEWER)    (TOP 10 REVIEWER)   
This review is from: Sanyo Eneloop AA NiMH Pre-Charged Rechargeable Batteries - 8 Pack (Accessory)
[IMPORTANT NOTE]
My original review below was written back in 2007, when the Sanyo eneloop first became available
through Amazon.com. Part of my initial estimation about eneloop's self-discharge rate turns out to be inaccurate. Please see my other Amazon spotlight review for updated information.

[Original Review follows]

According to Sanyo, the new eneloop LSD (low self-discharge) NiMH batteries can maintain 85% of its original charge after 1 year of storage. This claim is slightly misleading, because it is based on simulation test at 20 degree C. At higher temperature, the self-discharge rate is likely to be much higher.

I have tested five of those AA cells (details are given in my review for the eneloop 4-pack). The average energy loss is about 26% after less than 6 months of storage, based on manufacturer date codes. This self-discharge rate is about 3 times higher than what Sanyo claimed. However, it is still 6 times lower than that of... Read more
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351 of 358 people found the following review helpful
5.0 out of 5 stars After all It is not only about milliampere hours, March 12, 2007
By 
Vlad G (Boston, USA) - See all my reviews
(VINE VOICE)   
Amazon Verified Purchase( What's this?)
I received several sets of Eneloops in February and label told they were produced in April - so they sat at warehouse for nine month. I put them into camera and they worked just fine. Kudos Sanyo!

I should also mention that Sanyo includes reusable battery holders with each set of four. These holders do not look very sturdy, but they perfectly usable.

Technically, Sanyo solved the main problem with NiMh technology - frightening self-discharge rate (up to 40% a month for standard cells). By doing this Sanyo reduced cell capacity down to 2000 mAh from today's top line of 2700 mAh.

Simple calculation shows that due to self-discharge a good 2700 mAh battery holds only around 2000 mAh after a month and a half.

So the answer to the question "which battery is better - Eneloop or standard NiMh" - lies in the usage pattern.

If you always keep batteries in your camera in top-notch charged condition, then standard 2700 mAh set is a winner... Read more
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