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Groups > sci.electronics.components > #6179
| Subject | Re: Li-Polymer Batteries |
|---|---|
| Newsgroups | sci.electronics.components, sci.electronics.design |
| References | (1 earlier) <os44i7$p0f$1@dont-email.me> <os4e43$11sp$1@gioia.aioe.org> <os4i2d$cgp$1@dont-email.me> <os4jk6$1bl7$1@gioia.aioe.org> <os4lda$4hi$1@dont-email.me> |
| From | Tom Gardner <spamjunk@blueyonder.co.uk> |
| Message-ID | <botFB.3073$Jh.1211@fx01.am4> (permalink) |
| Organization | virginmedia.com |
| Date | 2017-10-17 21:05 +0100 |
Cross-posted to 2 groups.
On 17/10/17 11:18, rickman wrote: > Jan Panteltje wrote on 10/17/2017 5:47 AM: >> On a sunny day (Tue, 17 Oct 2017 05:21:15 -0400) it happened rickman >> <gnuarm@gmail.com> wrote in <os4i2d$cgp$1@dont-email.me>: >> >>> Jan Panteltje wrote on 10/17/2017 4:13 AM: >>>> On a sunny day (Tue, 17 Oct 2017 01:30:45 -0400) it happened rickman >>>> <gnuarm@gmail.com> wrote in <os44i7$p0f$1@dont-email.me>: >>>> >>>>> rickman wrote on 10/16/2017 10:16 AM: >>>>>> I'm looking at buying these batteries for a test project and they ask the >>>>>> buyer to choose between battery types 357090 & 357095. I can't find any >>>>>> references anywhere that describe what these model numbers mean. Anyone >>>>>> know? >>>>>> >>>>>> http://www.ebay.com/itm/201761814378 >>>> >>>> It has build in chips to protect it, very unlikely to cath fire if you use a >>>> decent charger chip. >>> >>> "Very unlikely" is fine when it is sitting on your desk. If that happens >>> you get an appropriate fire extinguisher and put it out or at least let it >>> burn and put out anything else it has ignited. If you are in a vehicle >>> where you have no means of escaping and no way to deal with the fire, you >>> are SOL. "Very unlikely" isn't good enough for me. >> >> Na, wrap your nuclear plants in .. >> >> >>> Also, I'm not convinced all of these units have protection. The two model >>> numbers would seem to indicate one is 5 mm longer than the other. I expect >>> this is exactly the size of the protection board, so one might have >>> protection and the other might not. It is not all that unusual for an eBay >>> listing to contain errors and complete lies^H^H^H^H^H alternate facts. >> >> True, I only looked at the link, you can see the protection board, >> I have some like that, but only 1000 mAh, marked 'Varta'. >> From China nevertheless. >> >> I have some without protection board too...more RC type single cell lipos. >> And then I have the 3 cell ones, 30C ... no protection either. >> Danger all around me, >> Oh and the box with LiIon super powerfull forgot how many C. >> >> Gotta run :-) >> >> Think about it, you find lipos everywhere, even in those blutooth earplugs / >> headsets for your cellphone, and happily plug it in your ear and wear it on >> your head. >> Cars have gasoline, bad things can happen... >> There is a mad dog president in control of the button, I would worry about >> that first. >> Probabilities. > > I seem to recall a number of professional designs from companies who have much > reputation to loose which burst into flames. > > So no, I don't have tons of confidence in Lithium batteries to the extent that I > want to strap one on my kayak with no physical protection against the boat > catching on fire. Here's the authoritative report of one example of an *aerospace* qualified battery fire. The pilot was dead (ho ho) lucky the fire only occurred after landing. https://assets.publishing.service.gov.uk/media/59c8f175e5274a49c07f4704/AAIB_S3-2017_G-GSGS.pdf The pictures in the report are informative.
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Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-16 10:16 -0400
Re: Li-Polymer Batteries Mark Storkamp <mstorkamp@yahoo.com> - 2017-10-16 12:47 -0500
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-16 20:49 -0400
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-17 01:30 -0400
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-17 02:28 -0400
Re: Li-Polymer Batteries Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-10-17 08:13 +0000
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-17 05:21 -0400
Re: Li-Polymer Batteries Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-10-17 09:47 +0000
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-17 06:18 -0400
Re: Li-Polymer Batteries Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-10-17 10:26 +0000
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-17 06:33 -0400
Re: Li-Polymer Batteries Jan Panteltje <pNaOnStPeAlMtje@yahoo.com> - 2017-10-17 15:31 +0000
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-17 16:52 -0400
Re: Li-Polymer Batteries Jan Panteltje <pNaOnStPeAlMtje@yahoo.com> - 2017-10-18 07:12 +0000
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-18 04:58 -0400
Re: Li-Polymer Batteries Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-10-18 09:29 +0000
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-17 16:53 -0400
Re: Li-Polymer Batteries Jan Panteltje <pNaOnStPeAlMtje@yahoo.com> - 2017-10-18 07:12 +0000
Re: Li-Polymer Batteries mike <ham789@netzero.net> - 2017-10-17 12:07 -0700
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-17 17:19 -0400
Re: Li-Polymer Batteries mike <ham789@netzero.net> - 2017-10-17 20:03 -0700
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-17 23:36 -0400
Re: Li-Polymer Batteries Jan Panteltje <pNaOnStPeAlMtje@yahoo.com> - 2017-10-18 17:49 +0000
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-18 16:42 -0400
Re: Li-Polymer Batteries Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-10-19 09:11 +0000
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-19 10:53 -0400
Re: Li-Polymer Batteries Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-10-19 15:22 +0000
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-19 12:18 -0400
Re: Li-Polymer Batteries Jan Panteltje <pNaOnStPeAlMtje@yahoo.com> - 2017-10-19 16:47 +0000
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-19 18:34 -0400
Re: Li-Polymer Batteries Jan Panteltje <pNaOnStPeAlMtje@yahoo.com> - 2017-10-20 07:48 +0000
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-20 04:56 -0400
Re: Li-Polymer Batteries Jan Panteltje <pNaOnStPeAlMtje@yahoo.com> - 2017-10-20 09:38 +0000
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-20 12:47 -0400
Re: Li-Polymer Batteries Jan Panteltje <pNaOnStPeAlMtje@yahoo.com> - 2017-10-20 17:00 +0000
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-20 13:45 -0400
Re: Li-Polymer Batteries krw@notreal.com - 2017-10-20 20:05 -0400
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-20 22:54 -0400
Re: Li-Polymer Batteries krw@notreal.com - 2017-10-20 23:03 -0400
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-20 23:23 -0400
Re: Li-Polymer Batteries krw@notreal.com - 2017-10-21 10:48 -0400
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-21 14:53 -0400
Re: Li-Polymer Batteries krw@notreal.com - 2017-10-21 19:49 -0400
Re: Li-Polymer Batteries Jasen Betts <jasen@xnet.co.nz> - 2017-10-27 22:47 +0000
Re: Li-Polymer Batteries krw@notreal.com - 2017-10-27 22:25 -0400
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-19 12:51 -0400
Re: Li-Polymer Batteries Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-10-17 21:05 +0100
Re: Li-Polymer Batteries TTman <kraken.sankey@gmail.com> - 2017-10-17 16:02 +0100
Re: Li-Polymer Batteries rickman <gnuarm@gmail.com> - 2017-10-17 17:37 -0400
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