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Sanyo Eneloop AAA NiMH Pre Charged Rechargeable Batteries 4 Pack

eneloop is a combination of a rechargeable and a disposable battery, the next evolutionary step for batteries into the 21st century. eneloop is a totally new type of battery, which satisfies in a unique way the needs and expectations of the consumers.

The Sanyo Eneloop AAA NiMH Rechargeable Batteries features a 4-pak of 800 mAh rechargeable AAA batteries to power up your TV remotes, portable flashlights, and many others electronic devices.  It is pre-charged and ready to use right out of the pack unlike other rechargeable batteries in which you have to charge it first for long hours before you can use it for the first time.  These rechargeable batteries have extremely slow self-discharge rate that maintains 85% of capacity after 1 year of storage.  It is a combination of the best features of AAA alkaline (ready for use) and rechargeable (reusable) batteries.  The Sanyo Eneloop AAA NiMH Pre Charged Rechargeable Batteries can be charged up to 1,000 times, including partially, without experiencing memory effect.

User Ratings and Reviews

5 Stars Simply Awesome.
I always hated NIMH batteries because they lose their charge so fast. I have 20 year old NiCad rechargeables that work better. However, neither type stands up the new “low self-discarging” (LSD) NIMH batteries that Eneloop has popularized. I installed Eneloops in both my Wii Remote and Balance Board. They have held their charge over six months now and have worked flawlessly throughout this time. According the Wii Remote I still have 3 of 4 dots of power left.

I also have two AAA Eneloops that I installed into a Harmony Remote Control. Because the remote takes four batteries I also installed two new alkaline batteries. The alkalines have already wore out and need replacement yet the Eneloops are still going strong.

If you need batteries, just get these and you won’t be disappointed. If you don’t already own a battery recharger, the so-called Sanyo 277265 Eneloop Power Pack with Battery Charger, 8 AA & 2 AAA Batteries Plus 4 C & 4 D Size Adapter (CostCo Kit #2) is a good place to start.

3 Stars Decent Batteries
I was looking for a good rechargeable battery with at least 2000 mAh. I decided to buy eight each of the following three types of batteries:

Duracell DC1500B4N Rechargeable AA NiMH Batteries (2650 mAh)

Powerex AA 2700mAh Rechargeable NiMH Batteries (2700 mAh)

Sanyo Eneloop AA NiMH Pre-Charged Rechargeable Batteries (2000 mAh)

I’m posting this same review for all three batteries.

I also bought a La Crosse BC-9009 battery charger (which, apart from the manual, is quite excellent). This charger gives you the option to test battery capacity, so I used it on the 24 batteries that I bought. Granted, a sample space of 24 batteries is quite small, but it’s good enough.

The Duracells came in at 1547, 1399, 951, 2200, 2220, 2180, 940 and 905 mAh for an average of 58% of rated capacity (avg. 1543 mAh / 2650 mAh).

The Powerex came in at 2620, 2560, 2570, 2630, 2440, 2470, 1318 and 1053 mAh for an average of 82% of rated capacity (avg. 2208 mAh / 2700 mAh).

The Sanyos came in at 1940, 1867, 1931, 1961, 1856, 734, 1786 and 1895 mAh for an average of 87% of rated capacity (avg. 1746 mAh / 2000 mAh).

Although the Sanyos 87% is better than the Powerex’s 82%, the powerex comes out better from a cost perspective. The Duracell’s were not even in the running.

In September 2009, for 8 batteries, the Duracells cost me $22.22, the Powerexs cost me $25.98 and the Sanyos cost $24.41.

Based on this, the Powerex’s cost $1.47 per Ah. The Sanyo’s were $1.74 per Ah and the Duracells were $1.80 per Ah.

Given all this, I’d say the Sanyo’s were decent, the Duracell’s were losers, but when I need more batteries I’ll stick with the Powerexs.

5 Stars These are not self discharging
This is the only kind of battery to buy, The hybreds don’t self discharge like regular NIMAs. Does Anyone want a a bunch of NIMAs that are dead when you are ready for use???

5 Stars Amazing!
Don’t bother with any other rechargeable batteries, these things are the best I’ve ever used. Their longevity is absurd. You can leave them sitting around in a drawer or even leave them in the item you are using them for months at a time and they are still charged. Got them initially for my Canon PowerShot SX10IS and was worried about having to recharge AA batteries constantly, but these completely allayed my fears. Love them!

5 Stars Long Life; Good Capacity
I am not a battery expert, but I do know that these things hold their charge for a LONG time. I have these Eneloops and I have Energizers. (I use both for my GPS and my daughters camera.) While the Energizers have greater capacity than the Eneloops, the Eneloops definitely hold their charger longer.

If my calculations are correct, my Eneloops have about a 2000 mha capacity.

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