[TriEmbed] Lithium ion batteries.

[Mike Lisanke]

I would be interested in a 15m or longer talk. Especially, information
regarding preventing release of HF.

On Tue, May 9, 2017 at 12:30 AM, Kevin Schilf via TriEmbed <
triembed at triembed.org> wrote:

> Hi Glen,
>
> Following your lead, would the group be interested in a 15 minute talk
> about Li-Ion Care and Feeding?
>
> I know there are several people in the group with great experience but it
> sounds like there are also some who are less experienced with batteries.
> As you note below, they are a tremendous power source (high-intensity
> flashlights, laptops, Tesla battery packs, etc.), but with power comes
> responsibility (or a 30 second epitaph on the Internet).  :-)
>
> Sincerely,
> Kevin Schilf
> Digital Telesis, Inc.
> 919 349 7730 <(919)%20349-7730>
>
> ------------------------------
> *From:* Glen Smith via TriEmbed <triembed at triembed.org>
> *To:* TriEmbed Discussion <triembed at triembed.org>
> *Sent:* Monday, May 8, 2017 11:47 PM
> *Subject:* [TriEmbed] Lithium ion batteries.
>
> Some people picked up Li-Ion batteries at tonight's meeting, and I want to
> make sure that anyone who is new to Li-Ion at least has a chance to
> familiarize themselves with some safety aspects of a technology that has a
> chance of creating some pretty nasty problems if not properly cared for.
>
> First and foremost, understand that you are probably already using Li-Ion
> batteries, but in a slightly more protected manner than the bare cells that
> were available tonight. Most laptops and cordless tools use exactly these
> cells, but they are built into packs with battery management circuitry and
> polarity protection that preclude most of the problems that can arise from
> naked cells. Cell phone also use Li-ion technology, but in a different form
> factor.
>
> Unless you have been living under a rock, you have heard of the
> e-cigarette accidents, the exploding Galaxy phones and the flaming
> hoverboards. These mostly are a result of improper use of Li-Ion battery
> technology. These are NOT lead acid batteries that Dad used to use. When
> they go critical, they can release Hydrogen Fluoride. THIS IS BAD.
> Inhalation of Hydrogen Fluoride gas causes serious long term medical
> issues, that can take time to show up and you don't even know it.
>
> Please spend some time familiarizing yourself with the proper care and
> feeding of this technology. There is an entire thread dedicated to Li-Ion
> safety on the flashlight forum that I have mentioned during various
> meetings. http://budgetlightforum.com/node/45314 As with any topic
> involving personal responsibility, there are some people who will use OSHA
> recommended safety precautions, and others who will attack with a hatchet
> and chilly hands after uttering the words: "hold my beer and watch this!"
> Where you are in this spectrum is up to you, but please make a conscious
> decision about it, rather than proceeding from ignorance.
>
> Invest in a quality charger, the one I use is a LiitoKala Li-500 analyzing
> charger, available in many places, but cheapest from overseas at
> Bangood.com https://www.banggood.com/LiitoKala-Lii-
> 500-Lithium-And-NiMH-Battery-LCD-Smartest-Charger-p-999106.
> html?rmmds=search or Gearbest.com: http://www.gearbest.com/lii%5E%5E500-_
> gear/ Many other chargers exist, some are better than others. Most will
> auto-sense the cell under charge and make a best guess what to do with it.
> How much you trust that firmware is up to you. Some of my flashlight
> buddies charge in an ammo can in the garage, others in the spare bedroom.
>
> Don't short circuit these cells. They have an amazing ability to deliver
> large amounts of current - Samsung 30Q's are spec'ed at 15 AMPS. Testing
> has shown them to be capable of delivering 20 AMPS. This is not a cell to
> drop in your pants pocket with your keys.
>
> Thank you for listening.
> [/soapbox]
> Glen
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-- 
Best regards,  Mike
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