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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'>According to all the info I can find, LiPo
batteries are not a problem to the environment and can be disposed of in the
trash after discharge:</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>http://www.thunderpowerrc.com/PDF/DISPOSAL-OF-LIPO-BATTERIES.pdf</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>
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<p><b><i><font size=4 color=navy face="Brush Script MT"><span style='font-size:
13.5pt;font-family:"Brush Script MT";color:navy;font-weight:bold;font-style:
italic'>Jay Marshall</span></font></i></b><font color=navy><span
style='color:navy'> </span></font></p>
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<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>Phil Spelt<br>
<b><span style='font-weight:bold'>Sent:</span></b> Sunday, </span></font><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>August 30, 2009</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> </span></font><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>11:00 AM</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'><br>
<b><span style='font-weight:bold'>To:</span></b> </span></font><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>General pattern
discussion</span></font><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [NSRCA-discussion]
Li-Po Question -- SAFETY!!!!</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>
<p class=MsoNormal style='margin-left:.5in'><b><font size=5 color=red
face="Times New Roman"><span style='font-size:18.0pt;color:red;font-weight:
bold'>You do NOT "just throw rechargeable batteries into the trash".</span></font></b>
<br>
<br>
Cadmium and lithium are heavy metals that cause harm to biological
systems when ingested improperly -- i.e. from seeping into the water table from
landfills. Lithium is used in SMALL QUANTITIES to treat some kinds of
mental disorders, but that is under rigid manufacturing and dosing conditions.
Lead is also a heavy metal, that is why there is an extra charge when one buys
a car battery without a "trade-in". <br>
<br>
I was in RadShack the other day, and we happened to start talking about
recycling these batteries -- they will take ANY rechargeable battery except
auto batteries, including our R/C NicCads and Lipos, with no charge, and send
them to a proper recycling center. You can also usually take them to
local govt. recycling centers for no charge. Here in Oak Ridge, TN, every
Wed and one Saturday per month the center is open for all kinds of hazardous
items -- old PCs and TVs, paint, florescent bulbs, and on, and on.<br>
<br>
PLEASE recycle - not because of tree-hugging, but for human and animal
safety...<br>
<br>
At 10:16 AM 8/30/2009, you wrote:<br>
<br>
</p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>There are many ways to drain the
battery down to safe levels. I have heard the lipos are 'safe' anywhere
below 2V per cell, however, I figure as long as I have something draining them,
I just leave them on the load until they are basically 'dead'.<br>
<br>
For anything up to 3 cells, I use an automobile tail light bulb. Just
solder 2 leads onto the bulb at the 2 contact points and clip the other ends
onto the battery leads. For a 5 cell pack, I would use 2 bulbs in
series. Put them in a safe area, clip the bulbs on and leave them for a
couple days. Check the voltage from time to time and when it gets down to
about zero, just throw the battery in the trash.<br>
<br>
I tried the salt water bath approach and it didn't do anything for me.
After a couple days, the voltage had declined very little so I took the light
bulb approach. Actually anything that puts a load on the batteries will
work. A large resistor, light bulb, old brushed motor, etc.<br>
<br>
Don<br>
<br>
In a message dated 8/30/2009 6:10:08 A.M. Pacific Daylight Time,
Snaproll4@aol.com writes:</span></font></p>
<p class=MsoNormal style='margin-left:1.0in'><font size=3 face=Arial><span
style='font-size:12.0pt;font-family:Arial'>I have a Li-Po pack(5000) that needs
to be thrown away. It does not appear to be physically damaged, but I
need to know about the voltage. How low should I discharge it and I how
do I do that? My TP charger would take it down to 3.3 volts/cell.</span></font></p>
<p class=MsoNormal style='margin-left:1.0in'><font size=3 face=Arial><span
style='font-size:12.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal style='margin-left:1.0in'><font size=3 face=Arial><span
style='font-size:12.0pt;font-family:Arial'>TIA.</span></font></p>
<p class=MsoNormal style='margin-left:1.0in'><font size=3 face=Arial><span
style='font-size:12.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal style='margin-right:0in;margin-bottom:12.0pt;margin-left:
1.0in'><font size=3 face=Arial><span style='font-size:12.0pt;font-family:Arial'>Steve</span></font></p>
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size=3 face=Arial><span style='font-size:12.0pt;font-family:Arial'>
<hr size=3 width="100%" align=center>
</span></font></div>
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1.0in'><font size=3 face=Arial><span style='font-size:12.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal style='margin-left:1.0in'><font size=3 face=Arial><span
style='font-size:12.0pt;font-family:Arial'>_______________________________________________</span></font></p>
<p class=MsoNormal style='margin-left:1.0in'><font size=3 face=Arial><span
style='font-size:12.0pt;font-family:Arial'>NSRCA-discussion mailing list</span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>_______________________________________________<br>
NSRCA-discussion mailing list<br>
NSRCA-discussion@lists.nsrca.org<br>
<a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion"
eudora=autourl>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a></span></font></p>
<p style='margin-left:.5in'></x-sigsep><b><i><font size=3 face="Times New Roman"><span
style='font-size:12.0pt;font-weight:bold;font-style:italic'><x-sigsep>--></span></font></i></b><b><i><font
color=maroon face=Arial><span style='font-family:Arial;color:maroon;font-weight:
bold;font-style:italic'> There are only two types of aircraft -- fighters and
targets.<br>
<br>
</span></font></i></b>Phil Spelt, Webmaster & Past President, Knox County
Radio Control Society, Inc.<br>
URL: <a href="http://www.kcrctn.com/"
eudora=autourl>http://www.kcrctn.com<br>
</a>AMA--1294, Scientific Leader Member, SPA--177<br>
My URL: <a
href="http://mywebpages.comcast.net/~chuenkan/" eudora=autourl>http://mywebpages.comcast.net/~chuenkan/<br>
</a> (865) 435-1476 v (865) 604-0541 c </p>
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