On Mon, 25 Apr 2005 14:51:53 GMT, Gene Kearns
wrote:

On Mon, 25 Apr 2005 10:33:51 -0400, trainfan1
wrote:

ME ME ME wrote:
SWS,
I remember when they said you could not store your battery on a concrete
floor or it would discharge. They recommended storing the battery on wood.
Is this what you are talking about when you say old batteries were "leaky".



NO!

The concrete fable is just that. Concrete is just a big heat sink.

NO! The concrete fable was not a fable....

Concrete is also just a big sponge, absorbing water from the ground
beneath. During the days of battery construction using asphaltic
cases, a potential could be set up through the case, if there was
enough water on the outside of it.... held there by the damp concrete.

Once battery construction employed impermeable cases, this phenomenon
disappeared and ... over time.... became a fable.

Modern batteries have a lower internal resistance and can allow
unregulated power supplies to create a higher charging voltage than
those intended by the original motor designers.... assuming they even
foresaw the use of a charging system to run gee-whiz electronics,
rather than just replenish a starting battery....

Check the manuals for electronics.... many now support much higher
voltages than 12-14V. If they don't however, you risk frying
something....

What he said. :)

Later,

Tom