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<DIV><FONT face=Arial size=2>Robert,</FONT></DIV>
<DIV><FONT face=Arial
size=2> I
would like to pass on that 7.4V Li-Poly's can drive a regulator much
harder than a two cell Li-ion. By "drive" I mean overheat the
regulator to the point of temporary failure. </FONT><FONT face=Arial size=2>I
found out (the hard way) that certain regulators will drop the voltage to 3V or
less when they get hot. If they cool down soon enough you get the plane
back, if not you crash. Then you are puzzled by the fact that it all still
works. been there?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Lipo's seem to be able to deliver the higher
current for much longer than the Li-ions when under load.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I found this out when I switched to Li-poly's
for flight packs a couple of years ago. A regulator that was working
perfectly well before I swapped packs (Li-ion to Li-Poly) gave me fits during a
couple of flights. I lost the "solid link" and got erratic results from my
flight inputs. I knew it was not failsafe because the plane kept trying to roll
on its own. My failsafe were tested and gave level flight with low
throttle.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I was like I was getting low battery failsafe,
nothing, then control then a roll condition and then low throttle again, then
nothing again. This lasted several minutes while I coaxed the plane around
to a landing. It happened twice on one plane and once on another.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>On the ground you could see the ailerons not
centering properly and the regulator was too hot to touch.. Switching it off
allowed the regulator to cool down and then it all worked again.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>
<DIV><FONT face=Arial size=2>The good news is that you can test for the
potential problem very easily without flying the plane. Switch on for about 5
minutes. </FONT><FONT face=Arial size=2>If you get any heat on your regulator
when you switch to a Li-poly stop there. By heat I mean that it is clearly
hot to the touch!</FONT></DIV>
<DIV> </DIV>
<DIV>I switched brands and found out that the Oddino regulators and Batteries of
America 5.2V (red brick type) regulators all do the job just fine with a 2-cell
Li-Poly.</DIV>
<DIV> </DIV>
<DIV>I have had some mysterious radio problems over the years that I now
attribute to transient voltage loss due to heat build up in the regulators.
</DIV>
<DIV> </DIV>
<DIV>Just passing it on,</DIV>
<DIV> </DIV>
<DIV>Regards,</DIV>
<DIV><BR>Eric.</DIV></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><B>From:</B> <A title=robcase1@cox.net
href="mailto:robcase1@cox.net">Robert & Casey Green</A> </DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, November 30, 2006 3:35
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Lithium
Ion batteries</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Thanks for the feedback. Had an Eclipse
about three years ago, go into complete lock up and soon as it took off.
I turned left and the plane never came out of the turn; did I mention that
this was it's inagural flight. Had duralites on-board, and since then I
have been a little gun shy about them. Could there haev been othe
factors besides the batteries, sure; but I have been wary of using those
batteries again.</FONT></DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=dentdoc007@adelphia.net
href="mailto:dentdoc007@adelphia.net">Cameron Smith</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">'NSRCA Mailing List'</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, November 30, 2006 7:35
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Lithium
Ion batteries</DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Duralite needs the
business.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
style="mso-spacerun: yes"> </SPAN>I personally know of a judgment
awarded RECENTLY due to there DEFECTIVE Batteries/Chargers. (They had some
serious ISSUES when first releasing there Li-Ion.
Products.)<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
style="mso-spacerun: yes"> </SPAN>There are a few more responsible
Li-ion suppliers out there. <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN
style="mso-spacerun: yes"> </SPAN>If Lithium technology is the
direction you would like to go I would recommend Li-Polys. & JimO
Regulators!<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">If any further
information is needed about Duralites & there legal issues contact me
OFFline.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Tahoma size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original
Message-----<BR><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B>
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org] <B><SPAN
style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Robert & Casey
Green<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Wednesday,
November 29, 2006 8:43 PM<BR><B><SPAN
style="FONT-WEIGHT: bold">To:</SPAN></B> NSRCA Mailing List<BR><B><SPAN
style="FONT-WEIGHT: bold">Subject:</SPAN></B> [NSRCA-discussion] Lithium Ion
batteries</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman"
size=3><SPAN style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Hey Guys, I am thiking about
running lithium-ions batteries this year. Besides duralite, is there
anything else worth using.</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman"
size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Thanks in
advance.</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman"
size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Robert</SPAN></FONT><o:p></o:p></P></DIV></DIV>
<P>
<HR>
<P></P>_______________________________________________<BR>NSRCA-discussion
mailing
list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</BLOCKQUOTE>
<P>
<HR>
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