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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I’m sure most of us are familiar
with the VoltWatch battery monitor. It uses a simple LM3914 integrated circuit
from National Semiconductor. A nice visual indicator just before takeoff. Seems
to me that it could be easily modified, or even re-designed, for the higher
voltage packs the E-power guys are using. Any of you EEs want to make a few
bucks?</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
style='font-size:10.0pt;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>Keith Black<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, April 18, 2007
2:29 PM<br>
<b><span style='font-weight:bold'>To:</span></b> NSRCA Mailing List<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [NSRCA-discussion]
E-power</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> </span></font></p>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>I've
used a method similar to the colored bands. The problem is, as Rex mentioned,
sometimes you forget to remove the green indicator when you use the
battery. To solve that problem why not use some type of plug cover that must be
removed in order to use the battery. This will prevent accidentally leaving the
green indicator on a pack. </span></font></p>
</div>
<div>
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face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'> </span></font></p>
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<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>Rules:</span></font></p>
</div>
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face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'> </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>1.
Never use a battery that doesn't have a plug cover unless you first testing the
voltage.</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>2. Put
plug covers on as you remove the battery from the charger. </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>3. If
you forget to put the plug cover on after charging, ALWAYS check voltage before
putting it on or using it. </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'> </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>Keith</span></font></p>
</div>
<blockquote style='border:none;border-left:solid black 1.5pt;padding:0in 0in 0in 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>-----
Original Message ----- </span></font></p>
</div>
<div style='font-color:black'>
<p class=MsoNormal style='margin-left:.5in;background:#E4E4E4'><b><font size=2
color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:black;font-weight:bold'>From:</span></font></b><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'> <a
href="mailto:trexlesh@msn.com" title="trexlesh@msn.com">Rex LESHER</a> </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black;
font-weight:bold'>To:</span></font></b><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:black'> <a
href="mailto:nsrca-discussion@lists.nsrca.org"
title="nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</a> </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black;
font-weight:bold'>Sent:</span></font></b><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:black'> Tuesday, April 17, 2007
11:02 PM</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black;
font-weight:bold'>Subject:</span></font></b><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'> Re:
[NSRCA-discussion] E-power</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'> </span></font></p>
</div>
<div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>Been
there, done that... Most of us have, and won't admit it.. lol</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>I
finally got two colors of bands to place around the packs... Green and
Red. When I get done charging, I place a Green</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>band on
the battery. After I fly, I place a Red band around the pack... I
was thinking about how clever I was... Right up</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>until I
flew a pack the other day that didn't seem to have much power. It had a
Green band on it!!! Green means go, right?</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>Some
dumby got lazy and didn't follow procedure.... New
Rule!!! "ALWAYS CHECK VOLTAGE BEFORE FLIGHT, NO MATTER
WHAT."</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>I still
use the color bands, but now the voltage gets checked anyway! With
multiple packs, it's easy to get confused which pack is</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>which.
Especially when you are preheating the packs in cold weather! I got out
of the habit of checking the pack voltage because I'm using</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>the
TP1010 charger, which displays voltage... Bad habit, if you're not
taking it off the charger and putting it in the plane.</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>Just
for you Don, MINE DEFINITELY TOOK MORE THAN 5200+. All I will say is that
the 5300's have more than 5300!</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>I'm
just wondering which pack you did that to? lmao</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'> </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>Rex</span></font></p>
</div>
<blockquote style='border:none;border-left:solid black 1.5pt;padding:0in 0in 0in 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>-----
Original Message ----- </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black;
font-weight:bold'>From:</span></font></b><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:black'> <a
href="mailto:AtwoodDon@aol.com" title="mailto:AtwoodDon@aol.com">AtwoodDon@aol.com</a>
</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black;
font-weight:bold'>To:</span></font></b><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:black'> <a
href="mailto:nsrca-discussion@lists.nsrca.org"
title="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>
</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black;
font-weight:bold'>Sent:</span></font></b><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:black'> Tuesday, April 17, 2007
8:40 PM</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black;
font-weight:bold'>Subject:</span></font></b><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'> Re:
[NSRCA-discussion] E-power</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'> </span></font></p>
</div>
<div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial id="role_document"><span style='font-size:10.0pt;font-family:Arial;
color:black'>One thing I have begun doing is checking pack voltage before I
fly, verifying full charge condition. </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'> </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>Having
multiple battery sets, I may have gotten confused once (I will deny it in
public tho) and took off with a partially discharged pack, couldn't figure out
why I lost power and had to land about half way thru a flight.......
Whoops.... If I had actually done that, I guesstimate I would have put
back about 5200+ mah into a TP5300, not that I would have actually done that
ever <img border=0 width=19 height=19
src="http://cdn-cf.aol.com/se/smi/0201d20638/02"></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'> </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>Good
news is, the pack seems fine, has over 70 cycles on it now and still going
strong (when I charge it)</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'> </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>Don</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'> </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>In a
message dated 4/17/2007 8:31:21 P.M. Pacific Daylight Time, robcase1@cox.net
writes:</span></font></p>
</div>
<blockquote style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-bottom:5.0pt'>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>Thanks
for all the inputs. The second pac only took 2500 Mah, so may'be the <br>
batteries just need more time to be formed. I will continue to make short
<br>
4 - 5 minute flight for the next 6 flights to hopefully form the cells <br>
better. I feel better about it tonight after putting back 2300 and 2500 <br>
respectively, back into each pack :)<br>
----- Original Message ----- <br>
From: "Steven Maxwell" <patternrules@earthlink.net><br>
To: "NSRCA Mailing List" <nsrca-discussion@lists.nsrca.org><br>
Sent: Tuesday, April 17, 2007 9:11 PM<br>
Subject: Re: [NSRCA-discussion] E-power<br>
<br>
<br>
> Do 5 or 6 short flights to form the new batteries. Don't get me
wrong<br>
> here but for just starting out your pushing the limits but your last post<br>
> looks fine 3000's should be good. By pushing I mean for an E newbie, not<br>
> like I have this figured out, my wrost enemy is flying to far out I got <br>
> out<br>
> to 225 or more with a wind to my back and put back in 2579 MAh<br>
> One of the big things I found with the 5330/F3A is it's real easy to use<br>
> more amps than you need, what I found was after a point there is no more<br>
> power just higher amps not sure why other than maybe the AXI is like a<br>
> torque curve, for lack of a better term, maybe the AXI peaks at say 68 <br>
> amps<br>
> maybe less maybe more, but the thing is if your running more than that,<br>
> whatever that number is you just pushing more amps.<br>
><br>
> Steven Maxwell<br>
><br>
><br>
><br>
><br>
>> [Original Message]<br>
>> From: Robert & Casey Green <robcase1@cox.net><br>
>> To: NSRCA Mailing List <nsrca-discussion@lists.nsrca.org><br>
>> Date: 4/17/2007 10:27:49 PM<br>
>> Subject: Re: [NSRCA-discussion] E-power<br>
>><br>
>> How many flights, should you put a new pack through to break them
in? I<br>
>> charged the first pack that I flew tonight and put back 2300 Mah, the<br>
> second<br>
>> pack looks like it will take 3000 to be replenished, which is about
the<br>
> 80%<br>
>> of the pack. After putting that much back in the pack earlier I
am going<br>
> to<br>
>> have to throw these packs away as no good, or do I keep flying them
and<br>
> see<br>
>> what happens?<br>
>> Thanks for your responses so far. I think that I may have enough
room<br>
> 10S<br>
>> 5000 extreme. I am about three ounces over, sure I can find a
way to<br>
> make<br>
>> it work for the NATS.<br>
>> ----- Original Message ----- <br>
>> From: "Duane Beck" <duane.e.beck@comcast.net><br>
>> To: "NSRCA Mailing List"
<nsrca-discussion@lists.nsrca.org><br>
>> Sent: Tuesday, April 17, 2007 8:06 PM<br>
>> Subject: Re: [NSRCA-discussion] E-power<br>
>><br>
>><br>
>> > Robert & Casey Green wrote:<br>
>> >> Don I was pulling 72 Amps, on a 20x13 prop.<br>
>> ><br>
>> > Is that peak static, or unloaded in the air? I assume those
are 20C<br>
>> > packs.<br>
>> > _______________________________________________<br>
>> > NSRCA-discussion mailing list<br>
>> > NSRCA-discussion@lists.nsrca.org<br>
>> > http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<br>
>> ><br>
>><br>
>><br>
>> _______________________________________________<br>
>> NSRCA-discussion mailing list<br>
>> NSRCA-discussion@lists.nsrca.org<br>
>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<br>
><br>
><br>
> _______________________________________________<br>
> NSRCA-discussion mailing list<br>
> NSRCA-discussion@lists.nsrca.org<br>
> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<br>
> <br>
<br>
<br>
_______________________________________________<br>
NSRCA-discussion mailing list<br>
NSRCA-discussion@lists.nsrca.org<br>
http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</span></font></p>
</blockquote>
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<br>
</span></font></p>
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margin-bottom:.0001pt'><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:black'>See what's free at <a
href="http://www.aol.com?ncid=AOLAOF00020000000503" target="_blank"
title="http://www.aol.com/?ncid=AOLAOF00020000000503">AOL.com</a>. </span></font></p>
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margin-bottom:.0001pt'><font size=2 color=black face=Arial><span
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NSRCA-discussion mailing list<br>
NSRCA-discussion@lists.nsrca.org<br>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'>_______________________________________________<br>
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NSRCA-discussion@lists.nsrca.org<br>
http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</span></font></p>
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