Chuck Guzis wrote:
On 8/14/2006 at 8:50 PM Don wrote:
Why not use a *big* battery/cell... aren't we
talking
about a design that would end up WAY undersized? Even
scaled would leave lots of real estate that you could
install a conventional AA, 9V, etc. battery and forget
about it "forever"
I have always HATED the idea of a battery where one wasn't absolutely
needed. They have a nasty tendency to go south when you can least afford
it--and they can leak or explode.
That's why using a *regular* battery/cell instead of something
"designed for battery backup" (e.g., Li coin cells, etc.).
I try to design with batteries tht users can purchase at
their own grocery store, etc. (having replaced my share of
overpriced batteries in products that *I* have purchased).
Unless you can make a battery application last A VERY LONG TIME
(not just a LONG time since those are the cases where you get
screwed because you have forgotten about the battery that
you replaced 1 or 2 years ago... *but*, if you replaced it
*10* years ago you don't mind -- as much -- when it dies
after that long of a service life) it will frustrate users.