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On 12/01/2023 7:21 AM EST you wrote:
>I think someone is pulling someone else's leg. There is
>nothing (that I know of) in any post-2000 vehicle that can be
>"fried" by providing or accepting a jump, provide it's done
>properly (+ to + and - to -).
Donald,
Thanks for the reply. I agree with you, but I haven't stayed up with the
"state of the art" when it comes to the newer cars. My newest car is a '12
Scion xB. Everything gets older from there. I'd never heard of electric
parking brakes until my nephew had problems with his. So I had to come up to
speed there. So that's why I posted the questions.
>The "dead" battery does not appear as a short because the
>cables and clamps have significant resistance. That is the
>big reason that the "dead" battery needs to be connected
>for a period of time before cranking. (I usually wait 30 sec
>(longer in winter); not very long, but it really doesn't take
>much to bring a dead battery up to sufficient charge.)
Exactly!!!
>The protections on vehicle electronics and electrical
>systems are amazing; I've helped design and test quite a
>few of them.
Again, exactly what I thought. How hard is it to put a fuse, a MOV, and or a
diode in each circuit to protect it from surges and incorrect polarity.
>Protection is built in to every component against: over-
>voltage; reverse connection; shorts to ground; shorts to
>power. The battery itself is a very simple electrochemical
>device that _can_ be damaged, but it's difficult: freezing
>(-40F if charged; -20F if significantly discharged); reverse
>charging; mechanical damage is the most common
>problem.
Good info.
>Provided the jumper and jumpee batteries are connect
>properly (+ to + and - to -), there is almost no way to
>damage either of the vehicles' systems.
My thoughts exactly. Otherwise you'd have to remove a dead battery to charge
it.
Thanks for the info. That reinforces my thoughts exactly. I just wanted some
addition support.
JohnT,
John T. Blair WA4OHZ email: jblair1948@cox.net
Va. Beach, Va Phone: (757) 495-8229
65 Morgan 4/4 Series V (B1106) 75 Bricklin SV1 (#0887) 48 TR1800 48 #4
Midget
65 & 77 Spitfire 71 Saab Sonett III 65 Rambler Classic 65 Volvo P1800
Morgan: http://autox.team.net/morgan/
Bricklin: http://www.bricklin.org/
If you can read this - Thank a teacher!
If you are reading it in English - Thank a Vet!!
>From Dennis Prager - The American Trilogy:
e pluribus Unum, "from many, one."
In God We Trust
Liberty - the power of choosing, thinking, and acting for
oneself; freedom from control or restriction
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On 12/01/2023 7:21 AM EST you wrote:
</div>
<div class="default-style">
</div>
<div class="default-style">
>I think someone is pulling someone else's leg. There is
</div>
<div class="default-style">
>nothing (that I know of) in any post-2000 vehicle that can be
</div>
<div class="default-style">
>"fried" by providing or accepting a jump, provide it's done
</div>
<div class="default-style">
>properly (+ to + and - to -).
</div>
<div class="default-style">
</div>
<div class="default-style">
Donald,
</div>
<div class="default-style">
</div>
<div class="default-style">
Thanks for the reply. I agree with you, but I haven't stayed up with
the "state of the art" when it comes to the newer cars. My newest car is
a '12 Scion xB. Everything gets older from there. I'd never heard
of electric parking brakes until my nephew had problems with his. So I
had to come up to speed there. So that's why I posted the questions.
</div>
<div class="default-style">
</div>
<div class="default-style">
>The "dead" battery does not appear as a short because the
</div>
<div class="default-style">
>cables and clamps have significant resistance. That is the
</div>
<div class="default-style">
>big reason that the "dead" battery needs to be connected
</div>
<div class="default-style">
>for a period of time before cranking. (I usually wait 30 sec
</div>
<div class="default-style">
>(longer in winter); not very long, but it really doesn't take
</div>
<div class="default-style">
>much to bring a dead battery up to sufficient charge.)
</div>
<div class="default-style">
</div>
<div class="default-style">
Exactly!!!
</div>
<div class="default-style">
</div>
<div class="default-style">
>The protections on vehicle electronics and electrical
</div>
<div class="default-style">
>systems are amazing; I've helped design and test quite a
</div>
<div class="default-style">
>few of them.
</div>
<div class="default-style">
</div>
<div class="default-style">
Again, exactly what I thought. How hard is it to put a fuse, a MOV,
and or a diode in each circuit to protect it from surges and incorrect polarity.
</div>
<div class="default-style">
</div>
<div class="default-style">
>Protection is built in to every component against: over-
</div>
<div class="default-style">
>voltage; reverse connection; shorts to ground; shorts to
</div>
<div class="default-style">
>power. The battery itself is a very simple electrochemical
</div>
<div class="default-style">
>device that _can_ be damaged, but it's difficult: freezing
</div>
<div class="default-style">
>(-40F if charged; -20F if significantly discharged); reverse
</div>
<div class="default-style">
>charging; mechanical damage is the most common
</div>
<div class="default-style">
>problem.
</div>
<div class="default-style">
</div>
<div class="default-style">
Good info.
</div>
<div class="default-style">
</div>
<div class="default-style">
>Provided the jumper and jumpee batteries are connect
</div>
<div class="default-style">
>properly (+ to + and - to -), there is almost no way to
</div>
<div class="default-style">
>damage either of the vehicles' systems.
</div>
<div class="default-style">
</div>
<div class="default-style">
My thoughts exactly. Otherwise you'd have to remove a dead battery to
charge it.
</div>
<div class="default-style">
</div>
<div class="default-style">
Thanks for the info. That reinforces my thoughts exactly. I just
wanted some addition support.
</div>
<div class="default-style">
</div>
<div class="default-style">
JohnT,
</div>
<div class="default-style">
</div>
<div class="io-ox-signature">
<p class="default-style"><span style="font-family: tahoma, arial, helvetica,
sans-serif;">John T. Blair WA4OHZ email:
jblair1948@cox.net</span></p>
<div class="default-style">
Va. Beach,
Va
Phone: (757) 495-8229
</div>
<div class="default-style">
</div>
<div class="default-style">
65 Morgan 4/4 Series V (B1106) 75 Bricklin SV1
(#0887) 48 TR1800 48 #4 Midget
</div>
<div class="default-style">
65 & 77 Spitfire 71 Saab Sonett III 65 Rambler
Classic 65 Volvo P1800
</div>
<div class="default-style">
</div>
<div class="default-style">
Morgan: <a
href="http://autox.team.net/morgan/";>http://autox.team.net/morgan/</a>
</div>
<div class="default-style">
Bricklin: <a
href="http://www.bricklin.org/";>http://www.bricklin.org</a>
</div>
<div class="default-style">
</div>
<p>If you can read
this -
Thank a teacher! <br><span style="font-family: tahoma, arial, helvetica,
sans-serif;">If you are reading it in English - Thank a Vet!!</span></p>
<div class="default-style">
</div>
<p><span style="font-family: tahoma, arial, helvetica, sans-serif;">From
Dennis Prager - The American Trilogy:</span> <br><span style="font-family:
tahoma, arial, helvetica, sans-serif;"> e pluribus
Unum, "from many, one."</span> <br><span style="font-family: tahoma, arial,
helvetica, sans-serif;"> In God We Trust</span>
<br><span style="font-family: tahoma, arial, helvetica,
sans-serif;"> Liberty - the power of
choosing, thinking, and acting for </span>
<br><span style="font-family: tahoma, arial, helvetica,
sans-serif;">
oneself; freedom from control or restriction
</span> <br><br><br></p>
</div>
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