> -----Original Message-----
> From: William Chops Westfield [SMTP:billw@CISCO.COM]
> Sent: Monday, March 17, 2003 4:10 AM
> To:   PICLIST@MITVMA.MIT.EDU
> Subject:      Re: [EE]: Honda Insight Batteries
>
>     I remember that alkaline cells had a high power density
>
> So far, non-rechargable batteries have a SIGNIFICANT power density
> advantage over any rechargable technology.  It can be a bit tough to find
> "amp hour" ratings for primary batteries, but one source I found rates a
> typical AA alkalines at about 2.5AH, and a D at 13.5AH.  compared to 2AH
> and 9AH for the best (expensive, new, lower voltage) NiMH cells.
>
The alkaline Duracell "Procell" D size has around 18AH capacity, pretty
impressive!  Improved NiMh technology has dramaticaly closed the gap on the
smaller AA sized celles though.

Mike


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