- Brand Name: Lenmar
- Model Number: R2G802U
- Item Height: 2 inches
- Item Length: 8.5 inches
- Item Weight: 0.55 pounds
Lenmar R2G802U R2G 2 Hour Charger Includes USB Output and Alarm Clock with 4 R2G 2150mAh NI-MH for AA/AAA Batteries (Discontinued by Manufacturer)
- Includes Ready-2-Go, Four AA 2150mAh Rechargeable Cells
- 2-Hour Charger with Built-in USB PowerPort, Charges 1-4 AA/AAA NiMH cells
- Charger also includes Travel Alarm Clock, Day/Date and Temperature functions
- International compatible voltage - can charge from 100-240VAC, 12VDC, or standard USB power source
- 2 Year Warranty
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Top Customer Reviews
The Lenmar R2G802U is a nice product. Although not clearly stated, it comes with four pre-charged AA NiMH batteries. The charger itself comes with three power sources: a small wall wart, a cigarette lighter adapter for the car, and a cable to operate it from a USB port. (When operating from the USB port, charge times are increased, as there is a limit of how much current can be drawn from the USB port on a computer.)
Another neat feature about this unit, is that is features a USB charging outlet. Perfect for charging a bluetooth handset or other device that has a USB charging cable. One thing to note is that the USB charging outlet cannot work at the same time as the unit is charging batteries. But, if you plug a device in while you're charging batteries, they charger shuts off power to the batteries when they are complete and then switches on the USB charging outlet. That's a neat design in my opinion.
As for the included AA batteries, I haven't done much testing on them, but they work. I searched the web for some opinion on the Lenmar pre-charged batteries, but didn't find any info. I found less than stellar reviews on the non-pre-charged Lenmar batteries.Read more ›
- The base unit is a 4-cell AA/AAA charger that also functions as an alarm clock _and_ a USB power port. It has a very impressive-looking LCD panel (see the Customer Image I uploaded). In addition to four battery-status indicators, the panel also shows the present Time, Date, and temperature. The alarm clock function even has selectable ring tones.
- An AC adapter (input: 100-240V AC, output: 12V DC) to power the charger.
- A CLA (cigarette lighter adapter) cable to power the charger form 12V car battery.
- An USB cable to power the charger from your computer's USB port.
- Four Lenmar R2G (Ready-to-Go) AA NiMH cells, rated at '2150mAh'
So far, this package sounds like a great deal. But there are several issues you have to be aware of:
1. The USB output port only works when the charger is connected to AC adapter or 12V CLA. It cannot be powered by internal rechargeable batteries. (If this function is important to you, consider the Duracell Mobile Charger CEF23 instead)
2. You cannot use the USB port while charging any batteries.
3. The advertised '2-hour' charge time is only applicable when charging 1-2 cells _and_ when the charger is powered by AC adapter or 12V CLA.Read more ›
The USB output for charging phones, etc., is not powered by the NiMH batteries, though this would have been a simple feature to include, since 4 NiMH batteries provide 4.8V to 5V. The packaging does not state that the USB port is only operational when the unit is plugged in, with the batteries fully charged. If you're looking for a combination AA/AAA charger and power bank then this is not the product you want, look at products from Tenergy like the Zap CP4-AA Power Bank, which is less expensive and more functional, though it lacks the alarm clock and temperature functions.
The manual is poorly written, referring to "charging plates" that are not related to AA/AAA chargers, only to Lenmar's chargers that can charge proprietary Li-Ion packs.
The packaging states that the batteries are charged and ready to use (like Sanyo eneloop batteries), but this was not the case. The manual does state that the batteries must be charged prior to use.
The temperature feature on the alarm clock really ends up telling you the temperature of the batteries that are being charged, not the surrounding air temperature.
A poorly designed, poorly documented product. I returned it.
Most Recent Customer Reviews
I'd had this item since 2004 and have taken it on six cruises both in the US and to Europe and New Zealand. Read morePublished 3 months ago by ProjAnalyst
I've been using this charger for several years and it's the best I've tried. As another reviewer states, it's revived several batteries that other chargers could not. Read morePublished on July 5, 2012 by E. Arenz
Nice product. Care should be taken on using it as the cover does seem fragile. I was blown away how fast it charged my AAA and AA s and this off a marine battery connected to my... Read morePublished on June 17, 2012 by Amazon Customer
Bought this because it can be used in the car and at home. Charges pretty fast and has a usb port for charging mp3 player and bluetooth headset.Published on November 5, 2011 by Amazon Customer
does everything stated.
the only negative is the USB is disabled if the batteries are charging, but that isn't a serious drawback. Read more
I hesitated to review this item because the "not so positive" reviews ARE correct.
The LCD is nearly impossible to read.
The alarm is NOT loud. Read more
I bought this charger from Powerfilm to go with my foldable portable solar panel and I love it. It can charge a single battery or any other combination of batteries which some of... Read morePublished on September 13, 2010 by SoR609
I was looking for a way to carry batteries and use them, via a USB port, to charge my portable electronics. This is not what I was looking for. Read morePublished on December 14, 2009 by Michael Mc Mahon