Average Reviews:
(More customer reviews)This package (Targus Digital TG-LCD2700 AA/AAA Charger) contains a '2-hour' smart charger, car adapter, and four '2700mAh' rechargeable AA cells.
The charger is a surprisingly capable unit. Here are its main features:
- It accepts 100-240V AC input, or 12-24V DC input (with the included cigarette lighter adapter).
- It charges 1-4 AA or AAA cells in any combinations.
- It has a 'Discharge' button to exercise new cells, or cells that have not been used for a long time.
- The LCD panel has individual status bar for each cell. During charging, each status bar flashes to represent the 'readiness' of cell. Initially, only the bottom 1-2 bars may be flashing. As the battery voltage increases, higher bars start to flash. Finally, all 4 bars remain steady when the charging is completed. The bars will even flash in different patterns in case of high-impedance cells. (see my Customer Image)
Although this is called a '2-hour' charger, the actual charge time depends on number of cells and capacity. For 1-2 AA cells, the charging current is 1A each, so it takes 2 hours to fully recharge a pair of 2000mAh cells. But to recharge four 2500mAh cells, it will take 2500mAh/500mA = 5 hours instead.
One problem with this charger: even when charging current is 500mA each (for 4 cells), batteries become toasty hot near end of charge. In comparison, cells only become slightly warm when charged at 500mA on the La Crosse Technology BC-9009 AlphaPower Battery Charger.
Those Targus '2700mAh' batteries, on the other hand, are of very poor quality. After forcing them through at least 12 Discharge/Refresh cycles on my BC-900, they only reached 65% of the rated capacity. It is simply not worth paying anything for those junk batteries.
In summary, the LCD2700 makes a very good compact travel charger for occasional use. But for about the same cost, the La Crosse BC-700 is a much better charger for taking care of your rechargeable batteries.
[Update on Nov 21, 2009]
It turns out the over-heating problem was with the Targus 2700 batteries. They probably suffered from high internal resistance, which caused them to heat up during charging. I re-tested charging 4 eneloop AA cells in the Targus charger, and those only got slightly warm.
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Product Description:
Targus' goal is to enhance your lifestyle by offering innovative and quality products, as well as continuing to listen and respond to its customers.PRODUCT FEATURES:LCD display indicates the charging status of each battery;Refresh button drains batteries before charging for longer life;110~220V wall plug for worldwide use;Charges four AA or four AAA NIMH batteries;No memory effect lets you recharge partially drained batteries without reducing performance;Fold down plug.
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