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HomeAircraftHelicopterMain Discussion › Serious Battery Fire
02-29-2016 02:06 AM  30 months agoPost 81
Aaron29

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USA

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Boston marathon, anyone?

Very surprised to receive flak over trying to keep people safe.

Guess that's the internet for ya

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02-29-2016 10:45 AM  30 months agoPost 82
Heli_Splatter

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USA

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So the pressure cooker is dangerous storage. What do you base that on? Have you done any testing? It could be possible that the pressure vessel would contain and prevent the fire and smoke from spreading. Fire does need oxygen.

I just don't know without some testing and that means some batteries must die. I would not want to open the pressure cooker after the test.

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02-29-2016 11:10 AM  30 months agoPost 83
Ronald Thomas

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Gainesville, Fl, USA

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When lipos burn, the reaction creates its own oxygen. They don't need air to burn, they will burn under water (done that).

A pressure cooker is designed to release pressure a little at a time. I am not going to test that but that is also one of the vessel choice of cheap homemade bomb makers as they seal tightly and explode violently. As was stated before, Boston Marathon ring a bell?
You go right ahead and test it and prove me wrong...

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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02-29-2016 11:45 AM  30 months agoPost 84
Heli_Splatter

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USA

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I think you are full of Boston Beans....

I don't think that the fire would even start with a battery over-charged inside a pressure pot. It does not make it's own oxygen... a gas is released to puff batteries, but I do not think it is oxygen. (Hydrogen??-is flamable)

I have a blasting license and was the explosives excavation engineer on a large drill and shoot project. Together with that experience, I think that I could design and test the pressure cooker proposal without danger to anyone.

I will not go further in description, but I think I have an idea that would prove you wrong. I just don't believe the kinds of pressure or oxygen (explosive potential) exist to blow it apart. Of course, it all depends on quantities and sizes and thickness of the pot.

As I said before... I store all my Many Many batteries in steel ammo boxes with pressure relief holes to prevent problems. I throw away damaged batteries after I have rendered them inert by slitting the battery cases and soaking in a bucket of water outside.

I take these batteries very seriously.

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02-29-2016 01:24 PM  30 months agoPost 85
ICUR1-2

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Ottawa, Ontario

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I can't find the video atm but here one to show the pressure build inside an ammo can.
there is one where the lid get blown open.
there is only 2 ways for a lipo fire to happen
overcharge and damage

Watch at YouTube

spending time, paying attention

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02-29-2016 01:46 PM  30 months agoPost 86
Ace Dude

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USA

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Perhaps some may find this document titled "Safety of lithium-ion batteries" from The European Association for Advanced Rechargeable Batteries helpful.

http://www.rechargebatteries.org/wp...3-Recharge-.pdf

  

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02-29-2016 02:00 PM  30 months agoPost 87
Aaron29

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USA

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So after the Boston marathon event, the duty to prove a pressure cooker is unsafe falls on me?

Go ahead and use your pressure cooker if it means that much to you. Just be careful and do it alone.

I'm out.

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02-29-2016 04:15 PM  30 months agoPost 88
Nashville

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Formerly Music City now back home in Sunny Florida

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Update to original post. My buddy was indeed using an older Thunder Power charger. He's been doing some research and found a lot of information about the problems with the old software. He said he closely checked out the batteries, cells etc before charging and the batteries were fine. He's feeling it was most likely the charger. There is a full investigation being done about the fire so hopefully we'll get some solid answers. And thanks to those who are following this thread and mentioned that my original post has nothing to do with the other fires and videos that have been brought up.

I was Spektrum when Spektrum wasn't cool

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02-29-2016 04:17 PM  30 months agoPost 89
TMoore

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Cookeville, TN

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The TP1010 was a good charger. It was the charger that came out after that one that had the majority of the issues.

Delayed Response Operator Not Engaged
AMA SECTION 336 = Good
Drones = EVIL

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02-29-2016 04:28 PM  30 months agoPost 90
Nashville

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Yes, I used mine for ever. Norm never had any issues either. Good to know, thanks Terry.

I was Spektrum when Spektrum wasn't cool

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02-29-2016 05:23 PM  30 months agoPost 91
Ronald Thomas

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Gainesville, Fl, USA

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I think you are full of Boston Beans....
I don't think that the fire would even start with a battery over-charged inside a pressure pot. It does not make it's own oxygen... a gas is released to puff batteries, but I do not think it is oxygen. (Hydrogen??-is flamable)
I have a blasting license and was the explosives excavation engineer on a large drill and shoot project. Together with that experience, I think that I could design and test the pressure cooker proposal without danger to anyone.
I will not go further in description, but I think I have an idea that would prove you wrong. I just don't believe the kinds of pressure or oxygen (explosive potential) exist to blow it apart. Of course, it all depends on quantities and sizes and thickness of the pot.
As I said before... I store all my Many Many batteries in steel ammo boxes with pressure relief holes to prevent problems. I throw away damaged batteries after I have rendered them inert by slitting the battery cases and soaking in a bucket of water outside.
I take these batteries very seriously.
If you think I am FOS, why put vent holes in the ammo boxes then? Look up what an oxidizer is, then you will understand the potential of what can happen wen these batteries go off. Bottom line, when you enclose anything on fire, that will continue to burn, the expanding gasses and heat will eventually make the container that the reaction is in fail. It all depends on the size of the lipo as well. A 2s 1800 is probably not going to cause too much havoc, a 7s 5500...gonna be a problem.

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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02-29-2016 06:21 PM  30 months agoPost 92
TMoore

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Cookeville, TN

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Yes, I used mine for ever. Norm never had any issues either. Good to know, thanks Terry.
Dave, I wonder if he was using the model right after the TP1010?

Delayed Response Operator Not Engaged
AMA SECTION 336 = Good
Drones = EVIL

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02-29-2016 06:32 PM  30 months agoPost 93
ICUR1-2

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Ottawa, Ontario

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? was he balance charging ?

most likely the cause of fire in this case was equipment failure ?

overcharged a cell ?

spending time, paying attention

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02-29-2016 07:16 PM  30 months agoPost 94
Nashville

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Formerly Music City now back home in Sunny Florida

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Terry it was the old 1010 he's had for years. I think we bought ours together there in good old Cookeville. It was in good condition, at least we thought it was. He always used his TP balancers.

I was Spektrum when Spektrum wasn't cool

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02-29-2016 07:17 PM  30 months agoPost 95
gologo

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Sedalia, Mo USA

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Bottom line, when you enclose anything on fire, that will continue to burn, the expanding gasses and heat will eventually make the container that the reaction is in fail.
Ron, you just pretty much described a 'flashover' in your line of work??
Or is that the right way to put it, and have you had to ever experience
one?

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02-29-2016 09:27 PM  30 months agoPost 96
Ronald Thomas

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Gainesville, Fl, USA

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Never experienced a flashover (when all the contents in the room as well as the gases in the air get to the ignition temperature and all light off...SCARY) as when we make entry we take steps to prevent that. If you are in the room and that happens, you literally burn alive in seconds

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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02-29-2016 09:53 PM  30 months agoPost 97
utahbob

rrVeteran

St. George Utah

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How about the smoke?
Could you make an enclosure with vent tubes with some sort of filters to cut down the toxicity of the smoke?

I do a great decending funnel!

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03-01-2016 05:53 AM  30 months agoPost 98
Pistol Pete

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Seffner, FL

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For What Its Worth...
To SAFELY use a container such as an ammo can or pressure cooker, you MUST remove gasget/seals and optionally drill out a few 1/2" extra holes on top. Also remove pressure valve weight to cooker.

The idea is to have a closeable lid and NOT to completely lock-tight seal them (batts).

~~Enjoying the hobby one flight at a time~~

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03-01-2016 08:16 AM  30 months agoPost 99
sean911sc

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San Diego

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I've used the TP1010C and TP610C. The 610 had current software, but still not as good as the TP820HVC that I upgrade to. As Lipos/chanrger technology advances one should follow and replace old out dated equipment. Example - I had recently purchased a Hyperion 6S 5000 that wouldn't balance and always had an over charge/voltage on one cell. It would ramp up to 4.2v + as the other cells were well below it. The TP610C just wouldn't charge it and error out. Now same battery on TP820HVC was balanced charge without issue or error. The one cell that would over charge on the TP610C was keep inline with all the cells and never over charged. This pack was also cycled by online vendor prior to shipping. Yes I liked my TP610C they were out dated and lacked the functionality and battery monitoring features of newer models.

William S Harris

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03-02-2016 11:41 AM  29 months agoPost 100
HeliNutAndy

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worcester, MA USA

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