Re: Remote Car Battery Voltage Monitoring

["Robert Green" <ROBERT_GREEN1963@xxxxxxxxx>]

Which one?  That URL points to a whole page of items!

--
Bobby G.

"FrankW" <fworm@xxxxxxxxx> wrote in message
news:qemdnUW3UqrACJDZRVn-pw@xxxxxxxxxxx
> Justr get one of these
>
> http://www.vdcelectronics.com/camping.htm
>
> Robert Green wrote:
> > Anyone have ideas or sources for remotely monitoring an infrequently
used
> > car's 12V battery to make sure it didn't go dead from simple attrition?
> >
> > Ideally, I want some sort of contact closure when voltage drops below a
> > certain point.  I want to sent that information wirelessly to a base
unit
> > inside the house that would flash, beep, and then call my cellphone and
say
> > "Dad's wheelchair van needs recharging."
> >
> > What I would like to do is hijack a wireless thermometer - the
thermistor
> > probe should be able to read voltage with a few modifications to the
probe
> > end.  The thermometer base station has an  "alarm on temperature"
feature
> > that could, with a little recalibration, serve to monitor dropping
voltage
> > and to beep when it dropped below a threshold I would set.   With any
luck,
> > I could get it to read 100 degrees when the battery was fully charged
and 0
> > degrees when depleted.  Not sure there would be linearity along the
scale,
> > though!  <g>
> >
> > Another thought would be some sort of docking cradle on the front bumper
> > that allowed feeding a charging current to the car without the need for
> > connecting charging cables or a charger that can be dragged down the
street
> > for several blocks until the car manages to run over it (the reason why
I
> > just don't leave the sucker plugged in all the time for him!).
> >
> > --
> > Bobby G.
> >
> >
> >
>