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That is right... the idea of soaking the batteries in salt water for a week is to break them down into inert matter.<BR>
Then they are supposedly safe for the landfill.<BR>
<BR>
Rex<BR> <BR>
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From: lightfoot@sc.rr.com<BR>To: nsrca-discussion@lists.nsrca.org<BR>Date: Sun, 30 Aug 2009 11:22:23 -0400<BR>Subject: Re: [NSRCA-discussion] Li-Po Question -- SAFETY!!!!<BR><BR>
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<P class=EC_MsoNormal><FONT color=navy size=2 face=Arial><SPAN style="FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">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=EC_MsoNormal><FONT color=navy size=2 face=Arial><SPAN style="FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">http://www.thunderpowerrc.com/PDF/DISPOSAL-OF-LIPO-BATTERIES.pdf</SPAN></FONT></P>
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<B><I><FONT color=navy size=4 face="Brush Script MT"><SPAN style="FONT-STYLE: italic; FONT-FAMILY: 'Brush Script MT'; COLOR: navy; FONT-SIZE: 13.5pt; FONT-WEIGHT: bold">Jay Marshall</SPAN></FONT></I></B><FONT color=navy><SPAN style="COLOR: navy"> </SPAN></FONT><BR></DIV>
<P style="MARGIN-LEFT: 0.5in" class=EC_MsoNormal><FONT size=2 face=Tahoma><SPAN style="FONT-FAMILY: Tahoma; FONT-SIZE: 10pt">-----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-FAMILY: Tahoma; FONT-SIZE: 10pt">August 30, 2009</SPAN></FONT><FONT size=2 face=Tahoma><SPAN style="FONT-FAMILY: Tahoma; FONT-SIZE: 10pt"> </SPAN></FONT><FONT size=2 face=Tahoma><SPAN style="FONT-FAMILY: Tahoma; FONT-SIZE: 10pt">11:00 AM</SPAN></FONT><FONT size=2 face=Tahoma><SPAN style="FONT-FAMILY: Tahoma; FONT-SIZE: 10pt"><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> </SPAN></FONT><FONT size=2 face=Tahoma><SPAN style="FONT-FAMILY: Tahoma; FONT-SIZE: 10pt">General pattern discussion</SPAN></FONT><FONT size=2 face=Tahoma><SPAN style="FONT-FAMILY: Tahoma; FONT-SIZE: 10pt"><BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [NSRCA-discussion] Li-Po Question -- SAFETY!!!!</SPAN></FONT></P>
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<P style="MARGIN-LEFT: 0.5in" class=EC_MsoNormal><B><FONT color=red size=5 face="Times New Roman"><SPAN style="COLOR: red; FONT-SIZE: 18pt; 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 style="MARGIN-LEFT: 0.5in" class=EC_MsoNormal><FONT size=2 face=Arial><SPAN style="FONT-FAMILY: Arial; FONT-SIZE: 10pt">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 style="MARGIN-LEFT: 1in" class=EC_MsoNormal><FONT size=3 face=Arial><SPAN style="FONT-FAMILY: Arial; FONT-SIZE: 12pt">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>
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<P style="MARGIN-LEFT: 1in" class=EC_MsoNormal><FONT size=3 face=Arial><SPAN style="FONT-FAMILY: Arial; FONT-SIZE: 12pt">TIA.</SPAN></FONT></P>
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<P style="MARGIN-LEFT: 0.5in" class=EC_MsoNormal><FONT size=3 face="Times New Roman"><SPAN style="FONT-SIZE: 12pt">_______________________________________________<BR>NSRCA-discussion mailing list<BR>NSRCA-discussion@lists.nsrca.org<BR><A href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</A></SPAN></FONT></P>
<P style="MARGIN-LEFT: 0.5in"><B><I><FONT size=3 face="Times New Roman"><SPAN style="FONT-STYLE: italic; FONT-SIZE: 12pt; FONT-WEIGHT: bold">--></SPAN></FONT></I></B><B><I><FONT color=maroon face=Arial><SPAN style="FONT-STYLE: italic; FONT-FAMILY: Arial; COLOR: maroon; FONT-WEIGHT: bold"> 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/">http://www.kcrctn.com<BR></A>AMA--1294, Scientific Leader Member, SPA--177<BR> My URL: <A href="http://mywebpages.comcast.net/~chuenkan/">http://mywebpages.comcast.net/~chuenkan/<BR></A> (865) 435-1476 v (865) 604-0541 c </P></DIV></body>
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