<html><body><div style="font-family: Arial; font-size: 12pt; color: #000000"><div aria-label="Compose body">I would say "C" below:  I have never had a lipo pack get warm during charging.  That's because i always charge somewhere between 1.8-2.0 C.  For my electric planes I buy enough batteries so I do not have to hurry-charge in order to get back into the air.  I charge the lipos in my starter & glow igniter at home in the shop when I have plenty of time.  Now, in the interest of full disclosure, I do not use $150.00 battery packs, and none of my electric planes are for pattern.</div><div><br></div><div><span name="x"></span><span class="signature-truncate"><span class="signature-truncate"><span class="signature-truncate"><span class="signature-truncate"><div style="text-align: center;"><div style="text-align: left;"><span class="signature-truncate"><span class="signature-truncate"><span class="signature-truncate"><span style="color: #8b8b8b;"><span style="font-size: 13px;"><span style="font-size: 12px;"><span style="font-size: 11px;"><span style="font-size: 10px;"><em><strong><span style="font-size: 14px;">Phil Spelt, KCRC Emeritus, Secretary<br>AMA 1294, Scientific Leader Member<br>SPA L-18, Board Member<br>(865) 435-1476v  (865) 604-0541c</span></strong><strong><br></strong></em></span></span></span></span></span></span></span></span></div><span class="signature-truncate"><span class="signature-truncate"><span class="signature-truncate"><span class="signature-truncate"><span class="signature-truncate"></span></span></span></span></span></div></span></span></span></span><span name="x"></span><br></div><br><hr id="zwchr"><div style="color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;" data-mce-style="color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;"><style><!--

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--></style><div class="WordSection1"><p class="MsoNormal">During charging, a LiPo battery becomes:</p><p class="MsoNormal"> </p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1" data-mce-style="text-indent: -.25in; mso-list: l0 level1 lfo1;"><span style="mso-list:Ignore" data-mce-style="mso-list: Ignore;">A)<span style="font:7.0pt "Times New Roman"" data-mce-style="font: 7.0pt 'Times New Roman';">     </span></span>Warmer</p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1" data-mce-style="text-indent: -.25in; mso-list: l0 level1 lfo1;"><span style="mso-list:Ignore" data-mce-style="mso-list: Ignore;">B)<span style="font:7.0pt "Times New Roman"" data-mce-style="font: 7.0pt 'Times New Roman';">     </span></span>Colder</p><p class="MsoNormal">        <strong><span data-mce-style="font-size: medium; background-color: #ffff99;" style="font-size: medium; background-color: rgb(255, 255, 153);">C)   None of the above</span></strong><br></p><p class="MsoNormal">        <span style="font-size: medium;"><strong><span data-mce-style="background-color: #ffff99;" style="background-color: rgb(255, 255, 153);">D)  All of the above</span></strong></span></p><p class="MsoNormal"> <br></p><p class="MsoNormal">--Keith Hoard</p><p class="MsoNormal">--klhoard@outlook.com</p><p class="MsoNormal"> </p></div><br>_______________________________________________<br>NSRCA-discussion mailing list<br>NSRCA-discussion@lists.nsrca.org<br>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</div><div><br></div></div></body></html>