<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content="text/html; charset=US-ASCII" http-equiv=Content-Type>
<META name=GENERATOR content="MSHTML 8.00.6001.18812"></HEAD>
<BODY style="FONT-FAMILY: Arial; COLOR: #000000; FONT-SIZE: 10pt" id=role_body
bottomMargin=7 leftMargin=7 rightMargin=7 topMargin=7><FONT id=role_document
color=#000000 size=2 face=Arial>
<DIV>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'.</DIV>
<DIV> </DIV>
<DIV>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.</DIV>
<DIV> </DIV>
<DIV>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.</DIV>
<DIV> </DIV>
<DIV>Don</DIV>
<DIV> </DIV>
<DIV>
<DIV>In a message dated 8/30/2009 6:10:08 A.M. Pacific Daylight Time,
Snaproll4@aol.com writes:</DIV>
<BLOCKQUOTE
style="BORDER-LEFT: blue 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px"><FONT
style="BACKGROUND-COLOR: transparent" color=#000000 size=3 face=Arial><FONT
color=#000000 size=3 face=Arial>
<DIV>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.</DIV>
<DIV> </DIV>
<DIV>TIA.</DIV>
<DIV> </DIV>
<DIV>Steve</DIV></FONT>
<DIV id=d5fd1018e28e324c7cce35072d270eab class=aol_ad_footer><BR><FONT
style="FONT: 10pt arial,san-serif; COLOR: black">
<HR style="MARGIN-TOP: 10px">
</FONT></DIV><BR><BR>_______________________________________________<BR>NSRCA-discussion
mailing
list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</FONT></BLOCKQUOTE></DIV></FONT><DIV CLASS="aol_ad_footer" ID="f02e6f9dd722dcaba85723d52ba5715"><br/><font style="color:black;font:normal 10pt arial,san-serif;"> <hr style="margin-top:10px"/></font></DIV></BODY></HTML>