Rechargable batteries last longer than Duracell in torches !

Capt'n Midnight · 13-11-2009 02:46AM #1

Rechargeable batteries self discharge so non-rechargeables are better for things like remote controls or clocks that you want to have powered for months. Or for emergency torches where you want light after leaving for a year or two.

But if you know when you will need the light, a fully charged NiMH will beat a brand new Alkaline battery.

linkies
http://www.candlepowerforums.com/vb/showthread.php?t=64660 Alkaline
http://www.candlepowerforums.com/vb/showthread.php?t=79302 NiMH

Alkaline then Rechargable NiMH

At high discharge rates NiMH rechargable batteries BEAT Duracell Ultra !

Alkaline at 500mA discharge rate have a higher capacity than at 1A but still less than 2000mAh which was mid way down the NiMH chart.

cnocbui · 13-11-2009 10:03AM

The self discharge of NiMh has pretty much been eliminated By Sanyo in their Eneloop NiMh batteries. They will still retain 70-85 % of their charge after a year.

There are simmilar variants by other manufacturers like Panasonic with their infiniums.

They don't come in quite the high capacities normal NiMh's do and they cost a bit more:

http://en.wikipedia.org/wiki/Low_self-discharge_NiMH_battery

Dankoozy · 15-11-2009 11:54PM

anything that is marked as 'pre charged', 'ready to use'' or 'hybrid' lose far less of their capacity. ordinary nimh loses 30%

duracell also makes excellent rechargeable batteries

Rechargable batteries last longer than Duracell in torches !

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