<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body ><div>Don,</div><div>Any of the mentioned methods work.</div><div>Some chargers don't go below certain mah range. So that is what I do. Not everyone has multi chemistry chargers although I suggest most of the times.</div><div><br></div><div>If the pack has some voltage left over, some fma chargers can revive them. Some lipo chargers don't charge any packs below 3volt.</div><div><br></div><div>Ihncheol</div><div><br></div><div><br></div><div><div style="font-size:75%;color:#575757">Sent from my Samsung Galaxy Note® II</div></div><br><br><br>-------- Original message --------<br>From: atwooddon@aol.com <br>Date: 05/20/2013 12:18 PM (GMT-06:00) <br>To: nsrca-discussion@lists.nsrca.org <br>Subject: Re: [NSRCA-discussion] Help!!! Lipo recovery advise requested <br> <br><br><font color="black" size="2" face="arial"><font size="2">I<font size="2">MHO, </font></font>I think the <font size="2">ver<font size="2">y slow charge to around 3V might be a better approach than <font size="2">'jump starting' it with another pack. <font size="2">Rea<font size="2">son I say that is the chemical makeup of the 'zero' volt pack is pretty fragile at that point and rapidly charging it might be even further more <font size="2">harmful to the pack. A<font size="2">fter the 'zero' pack regains some reasona<font size="2">ble </font>level of charge the regenerative charge might be ok.<br>
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<font size="2">I have absolut<font size="2">ely </font>no experti<font size="2">se in the chemical r<font size="2">eactions of our lipo<font size="2"> packs, but <font size="2">it just seems logical they are in a very vu<font size="2">lnerable state if they are discharged that low. I have read many threads in the fo<font size="2">rums about the slow charging method but none about rapidly charging <font size="2">the very low packs. I have also <font size="2">read many many times about the <font size="2">significant </font>decrease in pack life from over discharging.<br>
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<div style="font-family:arial,helvetica;font-size:10pt;color:black">-----Original Message-----<br>
From: astropuppy <astropuppy@gmail.com><br>
To: Ihncheol <pnahobbies@sbcglobal.net>; General pattern discussion <nsrca-discussion@lists.nsrca.org><br>
Sent: Mon, May 20, 2013 10:10 am<br>
Subject: Re: [NSRCA-discussion] Help!!! Lipo recovery advise requested<br>
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<div dir="ltr">if it was my pack I would hook it up in parallel to another same size pack using the voltage equalizer mentioned in Don Atwood and my columns. In a vary open - nonflammable - area.
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<div class="gmail_quote">On Mon, May 20, 2013 at 11:03 AM, Ihncheol <span dir="ltr"><<a href="mailto:pnahobbies@sbcglobal.net">pnahobbies@sbcglobal.net</a>></span> wrote:<br>
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<div>Mike,</div>
<div>I usually do a low current (about 250mah) parallel charging with another pack that has about 70% charge left over. I don't connect balance connector. Stop the charger a few times to check the voltage of the low voltage pack.</div>
<div>Bunch of car/truck guys do that especially to 0 volt packs.</div>
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<div>Ihncheol</div>
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<div style="font-size:75%;color:#575757">Sent from my Samsung Galaxy Note® II</div>
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-------- Original message --------<br>
From: mike mueller <<a href="mailto:mups1953@yahoo.com">mups1953@yahoo.com</a>> <br>
Date: 05/20/2013 8:51 AM (GMT-06:00) <br>
To: <a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a> <br>
Subject: [NSRCA-discussion] Help!!! Lipo recovery advise requested <br>
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<div> I have a brand new test pack that I gave to my best friend aptly named "Puff Daddy" who tests for us. He's a great resource because he beats the living crude out of Lipo's so you can feel assured that your doing well if PD is succesful with them.</div>
<div> We'll PD did himself very proud last week and discharged the 2 packs on the first attempt to 0 voltage<var></var>. Opps he got distracted.</div>
<div> So how can I get some voltage into the packs so the charger can attempt to recover them? I know it's not going to be a text book operation but I'm willing to roll some dice to see if there is a way. One guy suggested using a nicad charger to pump in some juice.</div>
<div> At this point barring an exposion risk I have little to lose.</div>
<div> So any suggestions? TIA, Mike</div>
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<div>Mike Mueller</div>
<div><a target="_blank" href="http://us-mg5.mail.yahoo.com/neo/mo/www.f3aunlimited.com" rel="nofollow">http://us-mg5.mail.yahoo.com/neo/mo/www.f3aunlimited.com</a></div>
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