On 12 Dec 2003 14:29:05 -0800, wrote:

I've noticed that my new car allows draining of the 12 volt battery
through 12 volt sockets even when the ignition is off and the engine
is not running.

Congratulations! BMWs are wired that way for example, and I think that
the only correct way to do it.

I use to leave charging devices attached to the car at night know they
would only charge while I drove around, but now I can't any more as
they will drain the primary battery.

Charging a phone, laptop or other small item will not discharge your
battery noticeably.

Does anybody know of any devices that help stop current flow when the
source is below a certain level?

Sure, this is used for thermoelectric coolboxes (which will drain the
battery if left on for too long). I think it was around $45 or so.

http://www.waeco.com/pages/products/el/zk.htm

(first product listed).




/Marcus

--
Marcus AAkesson
Gothenburg Callsigns: SM6XFN & SB4779
Sweden
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