Duracell Mobile Charger With 2AA Pre Charged Rechargeable Nimh Batteries, CEF23DX2

by Duracell

Product Features

• The Duracell Mobile Charger essentially serves as a portable power hub
• Allows users to charge AA or AAA rechargeable Nickel Metal Hydride (NiMH) batteries
• Also features an USB port to enable users to charge a wide range of USB-enabled devices with built in rechargeable batteries
• Contains 2 AA pre-charged rechargeable batteries

Product Description

Duracell Mobile Charger with 2AA Pre-Charged Rechargeable batteries (CEF23DX2) essentially serves as a portable power hub, delivering power from 4 charged batteries to a variety of high drain ranging from digital cameras to Blackberries to MP3 players 3 - of Mobile Charger; 2 Precharged Rechargeable NiMH Batteries.

Product Details

• Product Dimensions: 6 x 5 x 4 inches ; 3 ounces
• Shipping Weight: 8 ounces
• Shipping: This item can only be shipped to the 48 contiguous states. We regret it cannot be shipped to APO/FPO, Hawaii, Alaska, or Puerto Rico.
• ASIN: B000XSBVK2
• UPC: 041333133355 041333132358
• Average Customer Review: 4.3 out of 5 stars  See all reviews (26 customer reviews)
• Amazon Best Sellers Rank: #92,690 in Health & Personal Care (See Top 100 in Health & Personal Care)
• Discontinued by manufacturer: Yes

Customer Reviews

Most Helpful Customer Reviews

137 of 139 people found the following review helpful:

5.0 out of 5 stars Versatile battery-charger with dual-personality, April 1, 2008

By 

NLee the Engineer (Nashua, NH) - See all my reviews
(HALL OF FAME REVIEWER)    (TOP 10 REVIEWER)   

This review is from: Duracell Mobile Charger With 2AA Pre Charged Rechargeable Nimh Batteries, CEF23DX2 (Health and Beauty)

The Duracell Mobile Charger (CEF23) is an extremely versatile charger. It actually has two operating modes, as selected by the MODE button:

1. As an AA/AAA NiMH battery charger, or
2. As an USB charger for USB-powered devices.

In battery-charger mode, the unit is a smart charger that accepts 1-4 AA/AAA cells in any combinations. The charger can be powered by either 100-240V universal AC input, or 12V DC input. This means you can also operate it from your vehicle's cigarette lighter adapter. Note that the car adapter is included in the CEF23DX4N, but not in the CEF23DX2.

The charging current is 550mA for each AA/AAA cell. So it takes about 4 hours to full charge up the included 2000mAh low-self-discharge cells (which are the Duracell-equivalent of Sanyo eneloop). I consider this a good compromise between shorter charging time and longer battery lifespan. Once charging is done, the current is reduced to 25mA (actually 0-50mA pulsed at 50% duty cycle) in trickle charge mode.

One really nice feature of this charger is that it has four individual battery status indicator lights. The status light for each cell turns RED when charging, GREEN when the cell is fully charged. It will even blink if you accidentally inserted an alkaline cell.

In USB charger mode, the unit generates a regulated 5-volt supply at its USB socket. You can then connect an USB-powered device (such as IPOD charger) to this unit. Input power for this USB charger can be from one of the following sources:
1. From 100-240V universal AC input,
2. From 12V DC input (car adapter), or
3. From four AA/AAA NiMH cells in the battery compartment.

The third way is the most interesting, because in case of emergency, you can even use 4 alkaline cells to power this USB charger, in order to charge up your cell phone's battery.

I must say that this charger is really well designed. It is a great bargain even if all you need is a simple battery charger. The USB charger mode is just an extra bonus.

[Update on Oct 7, 2010]:
Duracell has discontinued the excellent CEF23 charger (at least in the US) last year. So prices for the remaining inventory have skyrocketed. The replacement product (Duracell Go Mobile Charger) only charges in pairs, and does not contain an USB charger.
- If you just need an inexpensive 2-cell charger that can handle individual cell, consider the Sanyo eneloop MDR02.
- If you need a good 4-cell charger that can operate from 12V cigarette lighter adapter, consider the Targus LCD2700 with LCD Display
- If you need an advanced charger that can operate from 12V CLA, consider the La Crosse Technology BC500
- If you need a good 4-cell charger that can operate from 12V CLA _and_ can power an USB port using internal batteries... Sorry! Your best hope is to look for an international version of CEF23, such as the CEF23AU (AU=Australia).

[Update on Dec 1, 2010]
Just in case anyone is still interested in this charger: I recently found out that its USB port is capable of supplying 1000mA output current - even though the spec says 500mA only. I discovered this by accident when using it as a portable recharger for my Archos 5 500 GB Internet Tablet.

14 of 14 people found the following review helpful:

5.0 out of 5 stars Most Versitile Hybrid Charger, July 21, 2008

By 

Robert Salita "Software Developer" (CHI PAR PHX SYD PDX CLD NKC) - See all my reviews
(REAL NAME)   

This review is from: Duracell Mobile Charger With 2AA Pre Charged Rechargeable Nimh Batteries, CEF23DX2 (Health and Beauty)

Thanks to NLee's excellent review, I was turned on to Duracell's Mobile Chargers. Yes, the included batteries are hybrids similar Sanyo's Eneloop. I own both and can't perceive much difference. The recharger is an excellent value, as versatile as described.

Definitely go with Duracell Mobile Chargers if versatility is important.

Unfortunately Amazon's description doesn't do this product justice. This is a common problem and I'm sure sales suffer. I think Amazon and the product's Product Manager share blame.

9 of 9 people found the following review helpful:

5.0 out of 5 stars Much Better than Eneloop Charger !, October 13, 2008

By 

Sridhar LAGADAPATI (Virginia) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Duracell Mobile Charger With 2AA Pre Charged Rechargeable Nimh Batteries, CEF23DX2 (Health and Beauty)

This charger is working like a champ.Before buying this product I read all the customer reviews from Amazon web site and also from other sites then decided to go with this charger.

It comes with four individual battery status indicator lights. The status light for each cell turns RED when charging and GREEN when the cell is fully charged.

I bought Eneloop charger almost 5 months back but it worked only once after that it died.