<p dir="ltr">Thanks everyone for the advice, I have purchased E-Flite EC5 connectors, also Deans Ultra ( hard to unplug )guess my next buy will be the HK XT least they have a gripper.I upgraded to a 40 watt Weller soldering station wish I had went to a 70+ iron it takes to long to heat up that 440 volt 100 am 10 ga. Wire.not like soldering 2/56 brass connectors to piano wire.But I am persistent and am learning.Jim ,I love the smell of 30%Helix fuel exhaust. </p>
<div class="gmail_quote">On Aug 1, 2015 11:44 AM, "Arthur F. Kelly" <<a href="mailto:afkelly25@gmail.com">afkelly25@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">Lyle,<div><br></div><div>So you are coming over to the dark side, didn't think it would happen. I'll throw in my two cents to the discussion; it's a departure from all the other approaches. I've been using Anderson Power Pole plugs for the last three years without a failure. There have been several pieces in K-Factor about these plugs and I've connected with several east coast flyers who have had a lot of experience with them and highly endorse them. </div><div><br></div><div>A big part of the draw to me was that they involve no soldering, since my soldering skills are lower than dirt. I know there are some who are concerned about their ability to handle pattern currents, but I've had no issues. As with you, I've been using the Castle HV 80 and a standard 10S battery pack. I route the pack through an arming plug mounted on the side of the fuse and the plug is the last thing to go in before a flight. I've been very pleased with this arrangement and the ease in connecting the plugs. One downside to the arming plug (and the Castle ESC) is the spark created when the plug is inserted. The spark can erode the contacts, over time. Some of the newer ESC's have a built in resistor that absorbs the surge and eliminates the spark. </div><div><br></div><div>Just a few more ideas to muddy your thinking.</div><div><br></div><div>Art</div><div><br><div><div>On Aug 1, 2015, at 6:38 AM, Lyle Laughery via NSRCA-dist8 wrote:</div><br><blockquote type="cite"><p dir="ltr">Now that all of you have beat the wadding out of battery checking can you help this soon to be electric flier,choose the best battery connectors between the speed controller and battery .Castle 80 and 5000 battery?</p>
<div class="gmail_quote">On Jul 31, 2015 8:55 PM, "Patrick Harris via NSRCA-dist8" <<a href="mailto:nsrca-dist8@lists.nsrca.org" target="_blank">nsrca-dist8@lists.nsrca.org</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Real men fly eight times....102....wuss! </div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Jul 31, 2015 at 8:43 PM, Karl Watts <span dir="ltr"><<a href="mailto:karlwatt@sarmc.org" target="_blank">karlwatt@sarmc.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div>Eight times! You need counseling. I flew 3 times, 102 degrees and became more gusty. Went home for a beer and we were out.<br>
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Sent from my iPad</div><div><div>
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On Jul 31, 2015, at 8:50 PM, Patrick Harris via NSRCA-dist8 <<a href="mailto:nsrca-dist8@lists.nsrca.org" target="_blank">nsrca-dist8@lists.nsrca.org</a>> wrote:<br>
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<div dir="ltr">I flew eight times today and my twisty thing in the front went round and round and yes boys and girls, I am proud to say "I am an admitted Parallel Charger." Can I get an AMEN! </div>
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<div class="gmail_quote">On Fri, Jul 31, 2015 at 5:58 PM, Gordon Anderson <span dir="ltr">
<<a href="mailto:gaa@owt.com" target="_blank">gaa@owt.com</a>></span> wrote:<br>
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<div>Don't get me started on parallel charging!</div>
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<div>G<br>
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Sent from my iPhone</div>
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On Jul 31, 2015, at 5:15 PM, Patrick Harris via NSRCA-dist8 <<a href="mailto:nsrca-dist8@lists.nsrca.org" target="_blank">nsrca-dist8@lists.nsrca.org</a>> wrote:<br>
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<div dir="ltr">OMG...Jim...don't say "parallel charging' around Gordon....he'll have a fit! 😀
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<div class="gmail_quote">On Fri, Jul 31, 2015 at 3:59 PM, James Hiller <span dir="ltr">
<<a href="mailto:jnhiller@earthlink.net" target="_blank">jnhiller@earthlink.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Tried to fly today 17 MPH 101 degrees, this is getting old.<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I use a free volt meter from HARBOR freight to check before flying to insure I'm not installing a used pack.<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Before charging I check the voltage of each twin 5S pack to select packs with nearly the same voltage - usually within 2/10 V before parallel charging. I always
charge at 1C. <span>Takes about two beers to recharge a day's usage.</span><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I monitor charge Mah, which is a total when parallel charging, that I average to a single battery to get a feel for per flight consumption.<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Occasionally I'll charge individual batteries to try to negate the affects of parallel charging.<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I've also noticed it takes longer to balance when the batteries are getting tired and I'll check the IR for weak cells
<span>( IR</span> Spread ). <u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I'm also not working the batteries very hard only gaining maybe 20 degrees over ambient.
<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Jim<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> NSRCA-dist8 [mailto:<a href="mailto:nsrca-dist8-bounces@lists.nsrca.org" target="_blank">nsrca-dist8-bounces@lists.nsrca.org</a>]
<b>On Behalf Of </b>Patrick Harris via NSRCA-dist8<br>
<b>Sent:</b> Friday, July 31, 2015 3:32 PM<br>
<b>To:</b> Gordon Anderson<span><br>
<b>Cc:</b> AK, ID, MT, OR, WA, WY<br>
</span><span><b>Subject:</b> Re: [NSRCA-dist8] Battery checkers<u></u><u></u></span></span></p>
</div><p class="MsoNormal"><u></u> <u></u></p>
<div><p class="MsoNormal">All very true. I pick up on average about 5 percent after my packs set awhile. I find the checker I use to be pretty close, but always about 5 to 10 percent off what the true level based on what I actually put back into them. <u></u><u></u></p>
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<div><p class="MsoNormal">On Fri, Jul 31, 2015 at 3:25 PM, Gordon Anderson <<a href="mailto:gaa@owt.com" target="_blank">gaa@owt.com</a>> wrote:<u></u><u></u></p>
<div><p class="MsoNormal">Karl,<u></u><u></u></p>
<div><p class="MsoNormal"><u></u> <u></u></p>
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<div><p class="MsoNormal">Here is my 2 cents worth....<u></u><u></u></p>
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<div><p class="MsoNormal">Predicting battery capacity from the open terminal voltage is not very accurate, I believe that is where this capacity prediction is coming from. I will bet if you let the batteries "rest" a few minutes after your flight and then check
them again the capacity values will change. Battery chemistry is very non linear. I think the best predictor of battery health is the internal resistance, a lot of chargers will calculate and display this value. Keep an eye on trends, as the batteries age
the internal resistance will increase and they will also get hotter during the flight and eventually start to puff up. The nice thing about monitoring IR is you can see if a cell is getting significantly different than the rest of the cells in the pack.<u></u><u></u></p>
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<div><p class="MsoNormal">The best way to know the capacity you have taken from the pack is to use a data logger that is measuring voltage and current and then calculating the maHr usage. Even in this case you will have to put more back in than you took out, this
is because of the IR that burns some up in heat and the fact that the process is not linear.<u></u><u></u></p>
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<div><p class="MsoNormal"><span style="color:black">--Gordon<u></u><u></u></span></p>
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</div><p class="MsoNormal"><span style="color:black"><u></u> <u></u></span></p>
</div><p class="MsoNormal" style="margin-bottom:12.0pt"><span style="color:#888888"><u></u> <u></u></span></p>
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<div><p class="MsoNormal">On Jul 31, 2015, at 12:11 PM, Karl Watts <<a href="mailto:karlwatt@sarmc.org" target="_blank">karlwatt@sarmc.org</a>> wrote:<u></u><u></u></p>
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<div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p>
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<div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Do any of you guys or gals use battery checkers? Are they reliable? I have one that I use to check my batteries before and after I fly. For my flight packs
– 2 5000 mAh packs it consistently reads 97-99% and after flying 14-33%. My confusion is when I take a pack that say reads 14% after flying and charge it I am only putting in about 3000 mAh. Seems to me the battery checker should show 40% not 14%, I used
3000 mAh which is 60% of the pack. Should I discard the battery checker?</span><u></u><u></u></p>
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<div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p>
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<div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Karl</span><u></u><u></u></p>
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</div><p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Helvetica","sans-serif""><br>
Confidentiality Notice:<br>
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