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05-30-2011 04:13 PM  9 years ago
sks

rrApprentice

london

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^^^ the point I'm trying to make is that I NEVER take the claims of a "lipo safe" bag literally. It's as simple as that. When you are around something potentially lethal you should NEVER let your guard down.
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05-30-2011 04:25 PM  9 years ago
USNAviationjay

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Houston Tx USA

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Um sure sounds like the bag did its job to me...

The bag is to contain flames and fire..which it did..
nowhere does it say it contains the smoke..

So how did the bag not work?

Ammo cans are good as well we stored CAD's (cartridge activated device) in them in the Navy which is fancy talk for basically electronically fired shotgun shells that blow Airborne bombs and other weapons off ejector racks on fighters and bombers..

We stored enough firepower in 1 box to blow a car to kingdom come.

1 LIPO should be alot less firepower than what we safely stored in the boxes.
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05-30-2011 04:31 PM  9 years ago
sks

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london

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what concerns me more is HOW did his 6S burst into flames AFTER being charged.

All I can think of is that he probably charged them at a high rate of C and the heat up did the rest?

If you're not sure put the lipos in the garage or shed or some place it cannot do harm, problem solved.
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05-30-2011 04:40 PM  9 years ago
nickt919

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New Orleans, Louisiana

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....The fire occurred after charging.....
This seems to be happening a lot lately. A charged, sitting lipo goes up in smoke. It takes me a while to charge 8 packs on one charger so I regularly have charged lipos sitting. The metal container I store them in is the container I charge in. So...I have charged, sitting lipos.

The point is...I think this is a fairly common scenario. Charged lipos in a place that could potentially spread a fire. The guys who have dealt with fires no doubt used safety procedures while charging. We never expect a pack that is charged and sitting for a while to go up in flames.
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05-30-2011 05:09 PM  9 years ago
CalmAir

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Camarillo, Ca.

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I'm not sure what happened, but I agree we shouldn't be ridiculing anyone. We do need the input as it helps us all.

I don't have any experience with a burning lipo, but what I do is charge in a TP lipo bag, and then put that bag in an original LipoSack as I understand the LipoSack is considered one of the best.

I'm just thinking two bags is better than one and can maybe give me a little extra protection in getting it outside. I also keep one of those mechanical hand grabbers in the room.

My garage is a wood shop, so I charge in my home office.
I do however, never leave unattended.
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05-30-2011 05:12 PM  9 years ago
KevinMag

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IA

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Does anyone know exactly what happened here?

Was the lipo damaged in any way? Did he use a balancer while charging? Was the charger set correctly? ...or was it a healthy lipo that just decided to burst into flames for no reason?

Lipos are lying around peoples homes in millions, and many of them are shipped more or less unprotected by mail so they can't be that dangerous... Not saying that its not a good idea to take precautions, but most people don't even know they are dangerous...
If it doesnt work, throw money at it...
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05-30-2011 05:17 PM  9 years ago
josephk

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Toronto, Ontario, Canada

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Rarely hear about Lipo fire when charging in smartphone, camera, camcorders ?
Thank you for the Lipo bag information. We need to make sure we know about the make, quality and reputation when choosing lipo safety bags.

Another topic. May be I am wrong but don't laptops, smartphones, camera, camcorders all use lipo technology these days? The charger came with these devices are much simple design compare to our RC hobby charger. I think we all charge these devices unattended.

Just puzzle me, why just hobby high tech batteries blow up?
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05-30-2011 05:36 PM  9 years ago
sks

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london

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I agree, joseph. I just don't buy it either.
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05-30-2011 05:52 PM  9 years ago
spiderco

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Henderson, Nevada

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Rarely hear about Lipo fire when charging in smartphone, camera, camcorders ?
I'm a fireman and I've responded to a couple of car fires caused by cells phones that were charging in the vehicle unattended. It is rare, I've put out many car fires in my 12 years as a fireman and only run across 2 caused by cell phones.
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05-30-2011 05:56 PM  9 years ago
CalmAir

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Camarillo, Ca.

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"Rarely hear about Lipo fire when charging in smartphone, camera, camcorders ?"

I thought the same thing until I googled Laptop fires after Dell had their big recall. I think most all cell phones are Lipo now and there are reports of cell phone fires. I think the charger and charge rate is the X factor.
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05-30-2011 09:40 PM  9 years ago
flyride

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Salt Lake City UT

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What about a fire proof safe maybe a cheap one from Harbor Freight or a sentry form walmart etc, that seems like it would be a safe place to store them inside and if it did catch fire it seems like it would contain it well. Good or bad idea? I am looking for something that I can keep in my hobby room that will be safe.and the blonde said "RECTUM, Hell damn near killed em!!"
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05-30-2011 09:56 PM  9 years ago
ErichF (RIP)

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Sutton, NH

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Fire safes are designed to keep fire OUT, not in. They have a fusable lip around the perimeter of the lid that literally melts shut when a fire engulfs the safe. I'm not sure how this would behave when the fire is inside the safe. It's probably still better than just a fiber glass bag, though.

BTW, I'm reading/writing this while my 6S lipos are charging to storage charge in the next room.
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05-30-2011 10:03 PM  9 years ago
Mr.Green

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Kaysville, Utah

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The problem with a fireproof safe is that they are not vented( as far as I am aware). Depnending on how they are made and what they are made of they could potentially explode like a bomb. I have yet to have a lipo burn in my house because I always monitor them while charging. The stories about them catching on fire while not charging is what makes me nervous. I can't be watching my Li-Pos 24/7. I use the Li-Po sacks which as I uderstand are just to contain the fire within the bag. I keep them on a cement floor no where near anything flamable. There was a post on here not too long ago about making a pit with cinderblocks on a cement floor to store lipos. I think that is a great idea and would eliminate 90% of the problems we are having with them. If that isn't a possibilty I would recomment getting military ammo cans and vent them to allow for the smoke to vent out.
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05-30-2011 10:14 PM  9 years ago
flyride

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Salt Lake City UT

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I have a safe that is not air tight but I didnt think of it melting and sealing in a fire. I am always close by when charging but storing the lipos is what I am after. I dont want to store in the garage as it gets hot in the summer and cold in the winter plus is is full of stuff that can burn. What are some other ideas other than a lipo bag or ammo can?and the blonde said "RECTUM, Hell damn near killed em!!"
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05-30-2011 10:58 PM  9 years ago
Jeff polisena

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westpalmbeachflorida usa

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All I can think of is pack had bad cell amd it got over charged then burst . I had astro 109 and this was a tritan so yes you can blame chargers but bottom line is I've been charging and flying the same way since lipos came available .You can blame pilot but at end of day never say never and I don't believe fir a second that everyone that is posting sits and watches lipos charge , your talking about 4 hours on a good day of flying with fast chargers .

The blame game is easy !!!!
I stole it ,flew it and gave it back ;)
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05-30-2011 11:47 PM  9 years ago
Eco8gator

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Palm Beach, FL

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Time to get some newer chargers...

I would highly recommend this.

http://www.revolectrix.com/pl8_description_tab.htm

They have the best safety features of any charger on the market and are made with the highest standards!!!

From there don't leave the packs unattended but we all know that...but we sometimes forget.

Last, it sounds to me like the Lipo bag saved that house. The fire ball from a 6s 5AH Lipo is huge. The bag just smothers it and keeps the explosion stages(usually cells go one at a time) contained, but smoke will billow out and the plastic covering and lettering will catch on fire.
Xera Motors
ProBar
Minicopter
Thunder Power
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05-31-2011 12:03 AM  9 years ago
honda411

rrKey Veteran

Surprise, AZ USA

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I believe cell phones, laptops, and cam corders etc..... arent nearly as bad. These model lipo batteries are high current discharge, used a hell of a lot more than any cell phone, laptop or whatever it may be. Peoples cars probably burn because they leave the battery charging in a car that is probably hot as hell.

Some people hear are making smart remarks about this incident. If you wanna make smart remarks, go to a different forum site or dont reply at all. This guy is trying to tell us about the incident.

Yes lipo bag only hold fire in, not smoke, which is correct. But lets not be smart a$$es about it alright!

Charger may not even have nothing to do with it since he had it in a bag AFTER charging was done. There was probably a cell that was bad. This happens a lot, and more common than people think.

So lets be nice here and for the people that like to be smart, start being mature.
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05-31-2011 12:27 AM  9 years ago
Foz

rrApprentice

Earth

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Honda, who are you to tell people how to post? He set the tone by using such a blanket statement as the title of this thread.

Foz
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05-31-2011 04:13 AM  9 years ago
honda411

rrKey Veteran

Surprise, AZ USA

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well Foz, I dont have to argue with you as you probably want me to, but nah im gonna be nice guy here. I didnt single anyone out, nor tell anyone how to post. But to tell someone they lack brains is kind of over the top.

All im saying is why do some have to make sarcastics remarks. Either its the way they are typing the remarks or they just want to be plain sarcastic. Im not here to start an argument with anyone. Just put it this way... if you want to be sarcastic, leave the thread.

Anyways lets get back on subject here.
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05-31-2011 04:43 AM  9 years ago
GetToDaChopper

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Las Vegas , NV

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ya lipos always need to be treated as what they are "The World's Most Dangerous Battery" ! i've never trusted lipo bags so i got a all metal ammo box and made a 1" hole in the top so if the battery lights off it can vent straight up.     ▲
  ▲ ▲
▲ ▲ ▲ One of a Kind !!!
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