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Ron. Not sure what type controller you are running but if it's a
Castle, here is a copy from their FAQs:<br>
<br>
<strong>3. When I plug in my high voltage battery pack (4s-12s lipo,
12-20 NiMH) into my Phoenix HV or Phoenix-125, etc. controller there is
a large spark. Why? </strong>
<p>The spark is your friend. If ever you plug your pack into your
controller and you don’t see the spark, contact tech support <span
class="bodytext">at <a href="mailto:support@castlecreations.com">support@castlecreations.com</a>
or (913) 390-6939</span> and send the controller in for repair. Your
capacitors will need to be changed. <strong><em>NEVER</em></strong>
fly if you do not see the spark, especially with high voltage
applications! The higher the voltage, the bigger the spark should be. <strong><em>Remember,
the spark is your friend!!!<br>
</em></strong></p>
<p><strong><em> <br>
</em></strong></p>
<p><strong><em>Chris<br>
</em></strong></p>
<p><strong><em><font face="Times New Roman">PS - I have 500 flights on
one Deans Ultra connector and no issues with connection quality</font><br>
</em></strong></p>
<p><strong><em></em></strong>Ron Van Putte wrote:</p>
<blockquote cite="mid:09E17158-90CA-471A-9324-8E579655CC49@cox.net"
type="cite">I have a problem which I am sure many other E-powered
airplane owners have that I'd like to solve. I use an arming plug to
connect the two 5S Lipo packs to the ESC. On initial contact of the
arming plug with the receptacle, there's a big spark thrown.
Eventually the contacts on the arming plug and receptacle get burned to
the point where the electrical contact is very bad. Yesterday I had to
land my airplane deadstick because (I think) the ESC saw what it
thought was low voltage out of the battery that was actually due to the
burned arming plug/receptacle contacts. BTW, I am using high-amp
Anderson Power Pole connectors, which are probably more susceptible to
having the contacts burned than would Deans Ultra connectors.
<br>
<br>
I have thought about putting a BIG capacitor in parallel with the
arming plug, that would damp the initial current surge which causes the
spark. The capacitor could be removed before flight. However, I'm
wondering if there's a more elegant solution.
<br>
<br>
Ron Van Putte
<br>
<br>
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<br>
<br>
</blockquote>
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