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Old Aug 14, 2006, 7:21 PM   #1
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Join Date: Aug 2006
Posts: 3

Hi, I have owned a set of 8 energizer 2500Mah AAs for about a year and they work fine, shall I note that they have green topped positive sides and that the batteries are made in Japan, I charge them now on a Duracell Fast charger/Trickle charger, should that make them last any longer? Also I recently purchased a set of 4 2650Mah batteries. All of these batteries are circulated in pairs of two through my flashlight a streamlight Jr. Luxeon which if you use ordinary alkalines will only last an hour. The flashlight is digitally power regulated
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Old Aug 15, 2006, 9:39 AM   #2
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Join Date: Jul 2005
Posts: 358

Hello Lightingguy,

Fast charging is convenient, however it is harder on batteries than slow charging.

With high capacity cells (greater than 2000 mAh) you can expect 150-300 charge/discharge cycles if you slow charge them. Fast charging will drop that down to around 100 cycles.

With lower capacity cells (2000 mAh or less) you can expect 500-1000 cycles if you slow charge them.

I believe the problem with fast charging has to do with the heat build up at the end of the charge cycle. Heat kills the NiMh chemistry.

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