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Buyer Reviews
Average Buyer Rating:
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The only real replacement for alkalines
This is a great battery. It has total power similar to a good alkaline battery, and holds its charge for a year. Duracell calls them "pre-charged rechargeables," and they are often called "Ultra Low Self-Discharge (ULSD)" rechargeables.
It's the only rechargeable battery that works for "long-duration" uses, such as remote controls, thermostats, and other places where batteries have low drain for long periods of time. I've been buying and using these batteries for nearly a year now, with excellent results. I keep a spare set in my gym bag for my headlamp and GPS, and they always have power after sitting unused for months. That's unlike other rechargeables which have invariably self-discharged by the time I need them.
The rule of thumb that I have heard and believe, is that if a battery is going to be stored or in use for over a month, ULSD rechargeables have more usable power than traditional rechargeables. Over the course of a month, a standard rechargeable loses at least 1/3 of its total power to self-discharge. These batteries potentially have fewer charge/discharge cycles before they start to degrade, but they need fewer charges because they don't self-discharge. Overall, it's a win for all my uses.
I'll be buying these exclusively for the foreseeable future.
Customer Rating: 
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The more things change...
I bought these Hybrid battery's after learning that NiMH are known to drain quickly even while being unused. I did noticed something wasn't right as I would have to charge them every 2 weeks or so in my Canon S2 camera.
Well, it's been 2 weeks with the pre-charged and guess what, I have a low battery indicator on the camera but have been nursing them along just to see how long it will take for the camera to shut down. I also bought the AAA for a electric pepper mill and they're still going after about a month but the regular alkaline lasted a few months so I'm still not convinced if these really are any better in high drain devices.
Customer Rating: -
This is how batteries should be made!
Pros:
-For a rechargeable battery, these batteries does not need to be charged before you use it for the first time; right from the packaging into your gadgets.
-They last a long time.
-Does not need special charger. You can use your existing NiMh charger.
Cons:
-Just like what NLee mentioned (above). You can confuse them with regular Duracells and mistakenly thrown away after losing charge.
-This later technology is still expensive. I got them on sale from Safeway for 11$ Normally sold at 14.99$. Target also sells them for $11.
I also like Eneloops by Sanyo. But they are not easily available at your local stores.
Customer Rating: -
An eneloop by any other name...
Judging from similarity of technical specifications and physical shapes of (+) and (-) terminals, I am convinced that the Duracell Pre Charged AA is actually SANYO eneloop AA underneath a different wrapper. Therefore all the good things you heard about eneloop apply to Duracell 'Pre Charged', too.
My own testing has shown that the capacity of eneloop AA cell is slightly above the claimed 2000mAh, and it is able to retain at least 85% of its charge after 5 months in storage. The Rayovac Hybrid AA starts with slightly higher capacity at 2100mAh, but it 'only' retains 80% capacity after 5 months. For all practical applications, both are equally good. Just pick whichever brand (Sanyo, Rayovac, or Duracell) is on-sale, and you can't go wrong.
One small problem with the Duracell 'Pre Charged' cell is that: it looked too similar to the well-known 'Copper Top' alkaline cell. So there is a good chance that people may mistaken it for a disposable cell. Personally, I prefer the distinctive-looking white case of the eneloop cell.
