<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Lithium battery fires are nowadays extremely rare unless the battery receives a blow sufficient to damage the case. However, if "extremely rare" does not fill you with sufficient confidence that your house will not burn down, bear in mind that lithium is one seriously exothermically-reactive element - which is one of the reasons why it makes such great batteries.<div><br></div><div>How careful are you prepared to be?</div><div><br></div><div>Phil M1GWZ</div><div><br></div><div><br></div><div><br><div><div>On 25 Mar 2015, at 22:33, Martin wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr">I saw the results of a laptop battery catching fire while the laptop was in use. It was connected to a home-brew 3D printer. I can't image the fault that caused it but the aftermath in stink and smoke was awful. The fire extinguisher also made a mess though that was the extent of the damage.<div><br></div><div>The idea of keeping my phone with 2.6 A-H LiPo in my pants pocket doesn't seem like such a good idea now. BTW if you've never taken a smart phone apart you'd be surprised by what a large fraction of the phone is battery. </div><div><br></div><div> </div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Mar 25, 2015 at 2:57 PM, WB4JFI <span dir="ltr"><<a href="mailto:wb4jfi1@wb4jfi.com" target="_blank">wb4jfi1@wb4jfi.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div>I’ve used LiPos quite a bit with RC planes and copters, I still have few
bats and two chargers. I have two LiPo protection bags that I regularly
used whenever transporting the batteries. I also use metal ammo cases to
both charge and transport LiPos. There has never been an incident here
regarding LiPos, but I’m not willing to burn down my house on a chance.</div>
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<div>The biggest thing is to watch the batteries, and if they start to puff up
significantly, store them in a safe container until you can get rid of them
safely.</div>
<div>73, Terry (prime), N4TLF</div>
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<div><b>From:</b> <a title="beatnic@comcast.net" href="mailto:beatnic@comcast.net" target="_blank">Alex Fraser</a> </div>
<div><b>Sent:</b> Wednesday, March 25, 2015 4:15 PM</div>
<div><b>To:</b> <a title="tacos@amrad.org" href="mailto:tacos@amrad.org" target="_blank">TACOS</a>
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<div><b>Subject:</b> battery burn bag</div></div></div>
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<div style="FONT-SIZE:small;TEXT-DECORATION:none;FONT-FAMILY:"Calibri";FONT-WEIGHT:normal;COLOR:#000000;FONT-STYLE:normal;DISPLAY:inline"><div><div class="h5"><br>I'm
still learning about Lithium Ion battery technology<br>I bought a hobby charger
of fair quality. It can do balanced charging of multiple cell packs.
If I do everything correctly when charging will this type of battery still have
<br>a chance of catching fire?<br><br><font face="Comic Sans MS">I've seen
a lithium ion polymer (LiPo) </font>charging bag, which they claim are flame
proof. <br>Has anyone on list used these? <br><pre cols="72">--
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