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Duracell Pre Charged Rechargeable NiMH AA Batteries, 4-Pack


 
Manufacturer: Duracell
Customer Rating: Average rating of 4.5/5Average rating of 4.5/5Average rating of 4.5/5Average rating of 4.5/5Average rating of 4.5/5   Reviews   Send to a Friend

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Features
  • Duracell Pre-Charged batteries are charged and ready for use right out of the package
  • Duracell Pre-Charged batteries retain power for up to 365 days while not in use
  • Can be recharged and reused hundreds of times
  • Stays charged longer than RCR and have to be recharged less often
  • Contains 4 AA pre-charged rechargeable batteries


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Editorial Reviews
Duracell Pre-Charged Rechargeable NiMH AA Batteries (4-Pack) are ideal for high-drain items such as digital cameras, gaming devices and portable audio products
Spotlight Customer Reviews

Duracell vs. Energizer

Customer Rating: Average rating of 5/5Average rating of 5/5Average rating of 5/5Average rating of 5/5Average rating of 5/5
Duracell seems to be a better brand from experience. These also have the added benefit of being precharged, which i don't think energizer has. Duracell also has the non-precharged battery that boasts a powerful 2650 mah, which i think is top of the line. Coppertop beats the pink bunny.

Outstanding!

Customer Rating: Average rating of 5/5Average rating of 5/5Average rating of 5/5Average rating of 5/5Average rating of 5/5
I got a great deal on these and couldn't pass it up. These batteries are great...for now.

More like 1900 mAh after 1 round of discharge/recharge

Customer Rating: Average rating of 3/5Average rating of 3/5Average rating of 3/5Average rating of 3/5Average rating of 3/5
Amazon ran a special on these in late June so I grabbed two 8 packs for 16 batteries altogether. Using my LaCrosse BC-900 charger to test all 16 of these batteries, every single battery has come out below the stated spec of 2000mAh. Low was 1850mAh, high was 1988mAh, average was just above 1900mAh.

I do not think it is acceptable to advertise 2000mAh, but supply 1900mAh. Had I payed full price, I would have rated these even lower. I understand that if I were to do several discharge/recharge cycles, that it would increase - but this seems pretty low for a first round. Perhaps it is normal for this type of battery - but if it is, the package should state that several rounds of conditioning are needed to attain 2000mAh.


EDIT: Thanks to some comments, I've learned that more than one round of discharge/recharge is necessary to attain 2000mAh. I'll post back details in a few weeks after I've done all 16 batteries, but here's initial results from an extra round of discharge/recharge with 4 batteries: average storage capacity increased by 40mAh, with the largest increases in the batteries with the lowest initial capacity.

My initial reaction was overly negative and upon reflection I should have rated these batteries 4 stars.

FOLLOW UP: After several weeks of slow discharge/recharge cycles using my LaCrosse BC-900 charger, I have the following to report:

All batteries were above 1975 mAh
Most required 3 discharge/recharge cycles to get there, though some went through 2 or 4 cycles.
Half were above 2010
Half were 2010 or below
The maximum was 2070

For those few batteries I did a 4th round of discharge/recharge, the gain was small. So three rounds of discharge/recharge get you (close) to stated specs, and beyond that the gains are likely to be small.

It's a bit of work, but here's a good way to do it. Just buy a whole bunch of batteries at once - say 16 or more. Do all the discharges/recharges as part of your daily routine for a few weeks. Then don't worry about it for a few years.

One last comment: I also own 8 Eneloops I purchased a few weeks earlier. I got very similar results with 4 batteries. The other 4 are in use on my kid's Kidizoom Camera - and after two months of light use the batteries show full! With the traditional rechargeable batteries, two months of light use uses up at least a quarter of the battery, as they lose charge fast even with no activity.

Low Capacity is disappointing

Customer Rating: Average rating of 3/5Average rating of 3/5Average rating of 3/5Average rating of 3/5Average rating of 3/5
Sure, having pre-charged batteries is cool for the one time you open the package and for some reason, don't have time to pop them in your 15 minute charger. I was disappointed to see that these batteries only carry 2000 mAh, whereas many other Duracell AA rechargeable batteries carry 2400 mAh or 2650 mAh. Interesting that they claim to maintain charge for 365 days, but I don't think that compensates for the ~25% or more deficiency in capacity. For those interested, check your battery for its capacity rating.

Amazon should really include capacity of batteries in the product description.

Good Product

Customer Rating: Average rating of 4/5Average rating of 4/5Average rating of 4/5Average rating of 4/5Average rating of 4/5
The item has met all my expectations and last for a very good time on a full charge. Varies with item used but does good with all.
Product Details Binding: Health and Beauty
Brand: Duracell
EAN: 0041333160351
Feature: Duracell Pre-Charged batteries are charged and ready for use right out of the package
Label: Duracell
Manufacturer: Duracell
Model: DX1500R4
Number Of Items: 1
Publisher: Duracell
Release Date: 2007-10-24
Studio: Duracell

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