Re: [Paddlewise] MiMH

From: Michael Daly <michaeldaly_at_rogers.com>
Date: Thu, 14 Nov 2002 16:13:49 -0500
From: <sullivaned_at_pop.mts.kpnw.org>


> I'm seeing 1600 mAH cells for half the cost of 1800s. 'Milli-ampere hours'
> implies a linear proportionality to me, so we're talking ~ 12% difference
> in burn-time? 

I've seen a web page with informal tests done on NiMH batteries in GPS 
receivers and under those conditions, there is little difference in 
performance between 1600 to 2000 mAh AA batteries.  I've also 
found a web page that measured the true capacity of these various 
batteries and found that they often end up around the same regardless 
of rated capacity.  It seems that some manufacturers are overly 
optimistic while others are conservative.  I have 1600, 1700 and 
1800 battery sets and while I haven't measured anything, I haven't 
noticed a difference that stands out.

Rather than pay a premium for 1800-2000 mAh batteries, good 1700s
or 1600s are a better deal.  If you don't want to mail order, Wal-Mart 
and Home Depot have decent prices in my neighbourhood.

Mike
PS - I don't have the web URLs for the above.  The first was a GPS
enthusiast's and the second, I think, was a digital camera review
site.


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Received on Thu Nov 14 2002 - 13:13:36 PST

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