re: "Most don't turn off the cigar lighter"
Some do...some don't. Can't say if it's "most" or not.
The wife's 2005 Taurus doesn't, my 2004 Odyssey does. There are pros
and cons for both.
My Dodge conversion van used to turn off the "Automotive Power Port"
in the dash, but not the one in the "way back".
When I added another one in the passenger area, I made sure it stay
powered on all the time.
What I'd like to see...and maybe they have them...is this:
A set-up where I can push a button once the car is started so that the
Power Port will stay "ON" after the car is shut off, but default to
shutting "OFF" with the car if I don't push the button. An extra bonus
would be to be able to turn the Power Port on without starting the
car, but would still default to shutting "OFF" with the car once it
was started and then shut off, assuming I didn't press the button
That way I can decide if I want the Power Port energized with the car
off, but I wouldn't be in danger of killing the battery if I
accidentally left something on. When we had the Conversion van, the
kid's would sometimes leave something powered on and kill the battery.
It would be nice to prevent that, but still be able to *choose* to run
something with the car off.
(The Traction Control in my Honda can be turned "OFF" once the car is
running, but defaults to turning to "ON" every time the van is
started. I'd like similar logic for the Power Port where I can
override the default, but still have it default to "safe mode" if I
don't take any action.)
Keep in mind that when you start a car, the voltage can dip to 8-10 V under
So a 9V battery proly could do the job, as long as there wasn't much current
drain on it.
I think lantern batteries are 6V (basically 4 D cells), so two of those in
series would work as well.
Mebbe even the battery packs from 12V drills, etc.
Better yet get the codes. You can get it from either a dealer (w/ a
copy of title or other proof), or radio manufacturer with a sales
receipt. If codes are unavailable, seriously consider dumping the unit
It is an accident waiting to happen.
On Thu, 25 Mar 2010 22:49:20 -0400, "Existential Angst"
IIRC, they're 4 F cells (an F cell is as big around as a D cell, but
about 40% taller). They should allow a higher discharge rate. There
are also 12V lantern batteries (8 F cells).
BTW, I have no idea what happened to E.
Having viewed the idiot piece on Youtube "32 AA cells" in a
lantern battery. I took apart a couple lantern batteries.
The Rayovac carbon had four D-like cells, and the Duracell
had literally four D cells (just like the D cells you'd buy
in the stores). With a cardboard spacer, and contacts.
Supposedly Energizer alkalines contain the F cells, not
Duracell. I havn't opened one of them. Also no clue what
happened to B, or E cells.
And I still have my antique portable radio that took 2 45v cells in
series, but it was cheaper to use 10 9volt batteries in series. I don't
think the 45 volt cells they make now come in alkaline flavor so they
don't last very long.
On Sat, 27 Mar 2010 20:02:11 -0400, "Stormin Mormon"
A simple 9 volt radio battery is all that is required for the memory
keep alive. Connect one to a cig ligther plug, with a diode to keep
the 12 volts from hitting the 9 volt battery, plug it into the lighter
socket, close the door, and change the battery. 7 volts is more than
enough to maintain the memory.
With all the new computer/electronics surveillance crap in cars, these
days, why would you want to keep memory alive. Hell, I'd think
unhooking the battery for a day about once a week would be more in
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