[DMCForum] Re: Relays & current draw

["Joe OBrien" <joeyoseppijoe@xxxxxxxxx>]

Not if you wait till exactly noon or midnight to re-energize the
battery switch. :-)

Yeah, I'm lazy.


-Joe



--- In DMCForum@xxxxxxxxxxxxxxx, mike clemens <rmclemns@...> wrote:
>
> Ryan,
> 
> What about putting in a battery cut-off switch??  I
> put one on TPS and the switch has it's own key.  With
> no power applied to anything, my battery stays charged
> for months on end and it makes the car almost theft
> proof.  The only downside is you have to reset the
> clock.
> 
> Mike
> 
> 
> 
> --- Ryan Wright <ryanpwright@...> wrote:
> 
> > Short question: How long until the average relay,
> > energized, drains my
> > battery? Looks like most Bosch 12v relays draw
> > ~160ma. How long would
> > that draw take to drain a battery down too low to
> > start, on average?
> > Days? Weeks? Months?
> > 
> > Long version: I have several features on my car
> > (door launchers, trunk
> > popper) that I want to tie in to my parking brake's
> > ground, such that
> > they will only operate when the brake is set.
> > However, the ground wire
> > & switch on the brake are rather small, and the
> > actuators draw enough
> > current that I thought it a good idea to use a relay
> > to give me a
> > better ground path. Problem is I don't want to
> > create a current draw
> > that will be hard on the battery. Quite frankly I'd
> > like to be able to
> > leave the car for months without draining the
> > battery. Even though
> > I'll never do that, I just don't think it's a good
> > idea to build a
> > system that will draw the battery down within a 3-6
> > month time frame.
> > 
> > Is there a better way to do this, other than a basic
> > relay? Something
> > that will draw much less (or no?) power when set?
> > 
> > Thank you!
> > 
> > -Ryan
> > 
> 
> 
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