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<DIV>Ron, here is a thread on RCG about the sparking....... As Chris
mentions, some ESC manufacturers might not want a slow charge on the
capacitors.</DIV>
<DIV> </DIV>
<DIV><A
href="http://www.rcgroups.com/forums/showthread.php?t=920960&highlight=esc+spark">http://www.rcgroups.com/forums/showthread.php?t=920960&highlight=esc+spark</A></DIV>
<DIV> </DIV>
<DIV>Don</DIV>
<DIV> </DIV>
<DIV>
<DIV>In a message dated 2/9/2009 8:56:27 A.M. Pacific Standard Time,
cjm767driver@hotmail.com writes:</DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"><FONT
style="BACKGROUND-COLOR: transparent" face=Arial color=#000000
size=2>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
title=mailto:support@castlecreations.com
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
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