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<div style="direction: ltr;">Bad battery and some parasitic current on the car, I’d guess. The battery internal resistance (think of a resistor in series with the battery) could large relative to the parasitic current path on the car, but negligible relative
to the resistance of the multimeter.</div>
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<div style="direction: ltr;">Cliff</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Triumphs <triumphs-bounces@autox.team.net> on behalf of dave <dave@ranteer.com><br>
<b>Sent:</b> Sunday, June 14, 2020 7:51:10 AM<br>
<b>To:</b> triumphs@autox.team.net <triumphs@autox.team.net><br>
<b>Subject:</b> Re: [TR] what is going on?????</font>
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<p class="x_MsoNormal">Yes. I tested the good battery and it showed 12.7 volts. positive</p>
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<p class="x_MsoNormal"><b>From:</b> Geo Hahn <ahwahneetr@gmail.com> <br>
<b>Sent:</b> Sunday, June 14, 2020 7:40 AM<br>
<b>To:</b> dave <dave@ranteer.com><br>
<b>Cc:</b> triumphs@autox.team.net<br>
<b>Subject:</b> Re: [TR] what is going on?????</p>
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<p class="x_MsoNormal">Have you confirmed that the leads are correctly connected at the multimeter?</p>
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<p class="x_MsoNormal">On many modes they can be reversed.</p>
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<p class="x_MsoNormal">Geo</p>
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<p class="x_MsoNormal">On Sat, Jun 13, 2020, 7:57 PM dave <<a href="mailto:dave@ranteer.com">dave@ranteer.com</a>> wrote:</p>
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<p class="x_MsoNormal" style="">We bought a car a few months ago (an 88 jeep actually). Wasn’t running or driving, needed some work, battery was dead.</p>
<p class="x_MsoNormal" style=""> </p>
<p class="x_MsoNormal" style="">Today we finally got it running and driving using a known good battery from another car.</p>
<p class="x_MsoNormal" style=""> </p>
<p class="x_MsoNormal" style="">Set the jeep’s battery up on a charger a day or two ago and decided to try it in the jeep after all we succeeded in getting it running and driving.</p>
<p class="x_MsoNormal" style=""> </p>
<p class="x_MsoNormal" style="">Hooked up the positive first, then touching the negative caused a spark!!!!</p>
<p class="x_MsoNormal" style=""> </p>
<p class="x_MsoNormal" style="">Double checked that we had the ground to the engine and the positive to the electrical system.</p>
<p class="x_MsoNormal" style=""> </p>
<p class="x_MsoNormal" style="">The multimeter, with the red on the positive terminal and the black on the negative, read -9.97</p>
<p class="x_MsoNormal" style=""> </p>
<p class="x_MsoNormal" style="">Reversed it and got 9.97.</p>
<p class="x_MsoNormal" style=""> </p>
<p class="x_MsoNormal" style="">Checked the good battery – no, the multimeter is not broken.</p>
<p class="x_MsoNormal" style=""> </p>
<p class="x_MsoNormal" style="">Checked the jeep’s old battery again, same results. Good battery – same results (about 12.97)</p>
<p class="x_MsoNormal" style=""> </p>
<p class="x_MsoNormal" style="">What is going on???? how is this possible? Yes, we are replacing the battery but if someone had told me this story I would have told him he must have mixed up the terminals, that its not possible.</p>
<p class="x_MsoNormal" style=""> </p>
<p class="x_MsoNormal" style="">Can anyone explain this to me?</p>
<p class="x_MsoNormal" style=""> </p>
<p class="x_MsoNormal" style="">And yes, we are replacing the battery</p>
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