Rechargeable Up To 1500X; Low Self Discharge-Batteries Maintain 75% Charge After 3 Years Of Non-Use; Pre Charged & Ready To Use; 2000 Mah; No Memory Effect; Aa; 4 Pk

• Recharge up to 1500 times


• Low Self Discharge: Batteries maintain 75% charge after 3 years of non-use


• Pre charged and ready to use


• 2000 mAH power


• No memory effect

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The new SEC-MQN064N 4-AA eneloop with AC charger pack utilizes SANYO's advanced rechargeable battery technology allowing them to last longer than ever before! They provide excellent performance-to-cost advantages over both conventional alkaline and other rechargeable batteries. Unlike disposable batteries which can only be used only once and are wasteful to the environment the new eneloop batteries can be recharged up to 1500 times. They also maintain 75% of their charge up to 3 years when not in use. The come pre-charged and can be used immediately out of the pack eneloop batteries deliver reliable battery performance when you need it the most!

• Recharge up to 1500 times


• AC charger designed for 2 or 4 AA or AAA batteries


• Low Self Discharge: Batteries maintain 75% charge after 3 years of non-use


• 2000 mAH power -AA batteries; 800 mAH power-AAA batteries


• No memory effect

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The new SEC-HR4U4BPN 4-AAA eneloop battery pack utilizes SANYO's advanced rechargeable battery technology allowing them to last longer than ever before! They provide excellent performance-to-cost advantages over both conventional alkaline and other rechargeable batteries. Unlike disposable batteries which can only be used only once and are wasteful to the environment the new eneloop batteries can be recharged up to 1500 times. They come pre-charged can be used immediately out of the pack and maintain 75% of their charge for up to 3 years when not in use. Eneloop batteries deliver reliable battery performance when you need it the most!

• Recharge up to 1500 times


• Low Self Discharge: Batteries maintain 75% charge after 3 years of non-use


• Pre charged and ready to use


• 800 mAH power


• No memory effect

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The new SEC-HR3U8BPN 8-AA eneloop battery pack utilizes SANYO's advanced rechargeable battery technology allowing them to last longer than ever before! They provide excellent performance-to-cost advantages over both conventional alkaline and other rechargeable batteries. Unlike disposable batteries which can only be used only once and are wasteful to the environment the new eneloop batteries can be recharged up to 1500 times. They come pre-charged can be used immediately out of the pack and maintain 75% of their charge for up to 3 years when not in use. Eneloop batteries deliver reliable battery performance when you need it the most!

• Recharge up to 1500 times


• Low Self Discharge: Batteries maintain 75% charge after 3 years of non-use


• Pre charged and ready to use


• 2000 mAH power


• No memory effect

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Sanyo Eneloop AAA Pre-Charged Rechargeable Batteries are perfect for TV remotes portable flashlights and more. These batteries are pre-charged and ready to use right out of the pack. Their extremely slow self-discharge rate maintains 85 percent of their capacity after 1 year of storage. These batteries can be charged up to 1000 times without experiencing any memory effect.

• 4-pack of 800 mAh rechargeable AAA batteries for TV remotes portable flashlights and more


• Pre-charged and ready to use right out of the pack; preserves charge for long periods of time


• Extremely slow self-discharge rate maintains 85 percent of capacity after 1 year of storage


• Combines best features of AAA alkaline (ready for use) and rechargeable (reusable) batteries


• Can be charged up to 1000 times (including partially) without experiencing memory effect

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This special price is for a bundle of four four-packs of Sanyo Eneloop AA 2000 mAh batteries. These are the new version Eneloop which are rated for 1500 charge cycles - the number on the battery is HR-3UTGA which indicates that it is the new version.

SANYO's next-generation nickel metal hydride battery 'eneloop'.

Batteries have a property to release the stored energy in small amounts (this phenomenon is called 'self-discharge'). This property is particularly noticeable in rechargeable batteries such as Nickel Metal Hydride Batteries etc. as compared to dry cell batteries hence disabling rechargeable batteries from becoming batteries that 'customers can use immediately after purchase'. For this reason rechargeable batteries couldn't be used unless charged after purchase and so lagged behind dry cells in convenience. This new product's main property is that it has introduced great improvements in self-discharge properties (residual ratio after one year of non use is 85%*4 in temperature conditions of 20 degree Celsius according to SANYO research). Through this breakthrough development SANYO has realized a rechargeable battery that can challenge dry cell batteries in user-friendliness through features such as making possible use immediately after purchase or once charged its ability to be used anytime.

• Comes as four four-packs (a total of 16 batteries) with TWO FREE 8 Cell Battery Holders


• Sanyo Eneloop can replace alkaline batteries for all your needs and can be used in any application where AA batteries are needed


• Can be charged by using any good quality NiMH Battery Charger


• Extremely Low Self Discharge - will hold a charge on the shelf up to 85% for up to one year


• Made In Japan

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New improved eneloop kit in colors

eneloop - ready to use rechargeable battery. Since its launch in November 2005 eneloop has become well-known around the world as it has revolutionized the consumer-use rechargeable battery segment with its unique features:

* rechargeable approximately 1000 times
* coming pre-charged making it usable immediately after purchase
* its unique design departing from the look of traditional batteries

What is the difference between the "old" and the "new" improved eneloop?

* 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.

• Holds charge up to 3 years. Each eneloop will maintain 75% capacity after 3 years of non-use.


• Recharge 1500x. New and Improved! Each eneloop can be recharged 1500 times.


• Pre-charged and ready to use in your favorite devices


• Less than 4 cents per recharge. Save money. Over thier lifetime each eneloop costs less then 4 cents per recharge.


• INCLUDES: (8) AA eneloop (4) AAA eneloop and (1) 4 battery charger

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LSD is great.... just keep away from heat!

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 ordinary NiMH batteries. Therefore I'm in the process of replacing most of my existing rechargeable cells to the Sanyo eneloop.



Thanks to lower self-discharge rate you'll discover a lot more applications for eneloop cells in your house such as in clocks and remote controls. Do NOT use those cell in smoke detectors since their discharge voltage profile is very different from that of alkaline cells. Also don't use them as emergency flash lights batteries in your car because the higher temperature during summer time will probably nullify the advantage of LSD.



[Update on Jan 13 2007]

I have tested six new eneloop AAA cells dated "2006-06'. The average residue charge is 589mAh and the freshly charged capacity is 827mAh. This implies a self-discharge rate of 29% in 7 months which is consistent with the rate for AA cells (26% loss in 6 months).



[Update on Jan 29 2007]

The Rayovac "Hybrid" rechargeable NiMH batteries are now available at Walmart priced at only $[...] for 4-pack of AA or AAA cells. It is also advertised to have low self-discharge rate but not as low as that for eneloop. The eneloop is supposed to retain 85% charge in 12 months (when stored at 20 degree C) whereas Hybrid is supposed to retain 80% charge in 6 months (no mention of temperature).



[Update on June 3 2007]

In my 2-month self-discharge test using four different brands of NiMH cells. Hybrid and eneloop came up neck-and-neck!



Room temperature: 60-62 degree F (16-17 degree C). All capacities measured are average of 2-cells.



- Sanyo eneloop 2000 purchased Jan 2007.

Initial capacity measured: 2070mAh

Capacity after 62 days: 1796mAh (-13.2%)

(Note: my previous result for eneloop showed -18% but I repeated the test and it did better this time)



- Rayovac Hybrid 2100 purchased Jan 2007.

Initial capacity measured: 2155mAh

Capacity after 62 days: 1859mAh (-13.8%)



- LaCrosse 2000 purchased Jan 2006.

Initial capacity measured: 1902mAh

Capacity after 62 days: 1417mAh (-26%)



- SONY 2300 purchased Sep 2004.

Initial capacity measured: 2210mAh

Capacity after 62 days: 1309mAh (-41%)



So neither eneloop nor Hybrid did as well as advertised but they are still significantly better than previous generation of NiMH cells. So you can't go wrong with either brand.

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