COACH BATTERIES

[Don Bradner]

On 8/9/2008 at 10:08 PM hippieforever3 wrote:

>I misused the term memory for simplicity but you guys are sticklers
>for details.

>Please read:
>http://www.udel.edu/igert/pvcdrom/BATTERY/charlead.htm

OK, I read it. I only see confirmation that 100% discharge is a bad thing. What
are you thinking it says?


>Yes atomic physics makes "sheer lead volume determines capacity" true
>but characteristics like charge and discharge rates determine "useful
>capacity". A good example is that a well designed and built battery
>with EXACTLY the same lead weight may have double the "cranking
>capacity" as a poorer designed and built battery.

True, but that's equating "useful" with cranking, when our most-common concern
is total capacity, for house use. You used AH in your 55/100 example, and that
is not cranking capacity. You will not be able to design 100AH in the same
amount of space that you would use for 55AH, no matter how good the design.


Don Bradner
90 PT40 "Blue Thunder"
My location: http://www.bbirdmaps.com/user2.cfm?user=1