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48 of 50 people found the following review helpful
The Duracell 'mini charger' (CEF20) included in this package is shaped like a computer mouse, and about the same size. It is 'smart' in the sense that it charges 1 to 2 AA/AAA cells independently, and stops charging when each cell is full. The indicator light turns red during charging, and turns green when both cells are done. It will even blink if you insert an alkaline cell.

The two rechargeable NiMH cells in this package are the `Pre-Charged' type, which means they have very low self-discharge rate. The actual batteries may be either rebranded SANYO eneloop (white top) or Rayovac Hybrid (black top) cells. Most people prefer the white top. But according to my testing, the difference between those two versions is very minor. So don't sweat it even if you got the black top.

The only problem with this package is that: the mini charger is way too slow. The charging current is only 280mA for AA cell, and 110mA for AAA cell. That means it takes about 8 hours to fully recharge the two 2000mAh AA cells in this package. This makes it unsuitable as a travel charger, since you usually have to recharge in a hurry while traveling.

Considering its low price, this package is still a good value. But it you need shorter charge time, then consider the Sanyo Eneloop 2-cell Charger (MDR02) instead. This unit is just as compact, but its charging current is twice as high at 550mA, so the required charging time is reduced by half.
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10 of 10 people found the following review helpful
on June 4, 2012
Overall, the pros of the Duracell Mini Charger (CEF-20) are balanced by the cons. It's OK, so if you're looking for an inexpensive but smart charger with good build quality, and don't mind that it's slow and bulky, then it may be a fit for your needs. But for those willing to spend more, there may be better options out there. (Check NLee's most recent recommendations, that's the go-to source for battery and charger reviews.)

PROS:

"SMART" CHARGING: Each battery is charged separately, so you get the right amount of charge to recharge each battery.

INTERNATIONAL VOLTAGES: It can handle 110 - 240V, so all you need is an adapter for the prongs or access to a US-style "shaver" outlet.

FOLDING PRONGS: It will play nice with the other things in your luggage.

CONS:

SLOW: As NLee notes, the current this outputs to charge is low (280 mA AA, 110 mA AAA). Duracell estimates 8 hours to charge.

NOT SMALL: To me, this seems about 30%-40% larger than it needs to be. It's 4.5" long, 2.25" wide, and 1.6" thick. (You can get a sense for it's not-mini size by looking at the photo - those are AA batteries in the pictures, and the charger is much larger. I have a 4-battery charger that's not much bigger than this. That picture of someone putting it in their jeans pocket is do-able but ridiculous.)

This "mini" charger is longer, wider and thicker than it needs to be. Someone should have told the designer what "mini" means.

Also, the color of the cover is a lovely metallic color (green in my case), but the cover seems pointless or worse - charging batteries get hot. The cover is pretty but superfluous.
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2 of 2 people found the following review helpful
on January 18, 2013
I was slightly disappointed to have gotten "black top" batteries (made in China) as opposed to "white tops" (made in Japan). Nonetheless, they work just fine.

The charger is OK. It's somewhat slow, so prepare to leave your batteries charging overnight. Only thing that really bothers me about it is the green piece of plastic which covers the batteries. Despite being cosmetically appealing, it impedes airflow causing the batteries to heat up more than they should. I leave the cover open while charging (just in case).

Overall a good product considering the price. "Smart" charger makes this a worthwhile purchase.
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2 of 2 people found the following review helpful
on January 13, 2013
I have saved money on many sets of batteries since I have bought this little gadget. I would advise having more than one set of rechargeable batteries around for this reason. If you have one set in use and one charging, the slowness of the charging won't be a problem. This product would get 5 stars if it were a quicker charger.
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1 of 1 people found the following review helpful
on October 7, 2013
i always like Duracell products and i will always stick on this brand.
the batteries are 2000mah and i didnt have a chance to try them yet but everything exactly is the same like the way its described by the seller...

batteries comes with a little juice in it but its not a big deal since the first charge didnt take long...
i charged Duracell 2450mah batteries with it and it apprx. took 8-9 hours to charge.
the important thing is; you have to charge the 2 batteries at the same time and you have to be sure that they are same brand and same mah batteries.

my girlfriend also bought one and she paid 11$ for the same item and hers came with a RiteAid sticker on it which says that ''this item belongs to riteaid'' which was weird...

The weird part is, if you have Target store in your area, you can buy this charger for 3.29$ tax included
they sell it at RiteAid for 4.99$ too
For that reason i do not recommend this item because of the price.

I like Duracell and the item but i didnt like the price after seeing on the local stores.

OK Charger
BAD SELLER
BAD PRICE
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1 of 1 people found the following review helpful
on January 18, 2013
I usually don't do reviews, but I figured I had to for this one. Great product, I was kinda skeptical because of people saying it was bulky, but for the money I said why not. It's not bulky at all, very compact in my opinion, each battery is charged individually. I bought this in looking for some batteries for an xbox 360 controller for cheap. They work fantastic. Doesn't take too long to charge. I charged them fully about a week ago and they still have 3 out of 4 bars on my xbox controller. I play xbox every day so that says something. For the money you wont beat this, and I highly recommend.
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1 of 1 people found the following review helpful
on July 18, 2014
It says I bought this item on October 31, 2011. It is July 18, 2014. I don't remember why I originally bought these, but I am still using them. I got a nice Logitech mouse shortly after purchasing and have been using them in it, and these batteries and the charger have outlasted the mouse. Due to over use my mouse has the phantom double click problem. Anyway, these batteries are pretty good, and I'm about to move them into a new mouse.
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1 of 1 people found the following review helpful
on February 22, 2013
Seems to get the batteries charged. Other reviewers say that it takes some time to charge, and it does. So if your looking for something speedy this is not it. I personally like it and the cost was reasonable.
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on October 28, 2013
I ordered this to use with my xbox and its saved me a lot of money on batteries. this product isn't really good for portability because its kinda bulky. It has a great built, not flimsy at all and unlikely to break. the only thing really wrong with it is the charge time which is an agonizing 8 hours. I dont know if i would call this a 'smart charger" because it dosent really detect charge, instead its more of a timer which has a small light that turns green after 8 hours of charging. so if i had fully charged batteries and i unplugged it and plugged it up again it would display a red light even though they were already charged.

in conclusion this product does as its advertised charging batteries but its two major flaws are the charge time and the portability.
due to the 8 hour charge time its a good idea to plan charge times, or have another set of batteries ready for when they die.
Also make sure not to unplug it while charging because it will reset the time and mess up the charging.

If your impatient you might want another charger.
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1 of 1 people found the following review helpful
on February 9, 2014
The batteries and charger worked great for this. The batteries last a long time and charges pretty fast. I would recommend this to someone.
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