Lipo explosion....

[J-S-Q]

This guy had a lipo fire while charging and it ended up with an explosion that blew the doors off his garage! Have a look at the photos in his thread...

Lipo battery fire turned into Garage Explosion - HeliFreak

[Eckchaz]

Whats the NUMBER 1 rule of charging Lipos.... what an idiot.. there clearly looks like a can of aerosol that was near the charger aswell!

It does look extreme though.. maybe the lipo hit the door to cause that? but I really cant think of how a 6s lipo can cause that kind of compression in that amount of space and not move any of the stuff thats on his work bench?.. weird!!

[PeteStewardson]

I didn't bother reading the thread but looking at the pics that's a lot more than just a lipo. He had an aerosol can next to it that exploded in the fire by the look of it.

[J-S-Q]

Whats the NUMBER 1 rule of charging Lipos.... what an idiot.. there clearly looks like a can of aerosol that was near the charger aswell!

It does look extreme though.. maybe the lipo hit the door to cause that? but I really cant think of how a 6s lipo can cause that kind of compression in that amount of space and not move any of the stuff thats on his work bench?.. weird!!

If the number one rule is to never leave charging batteries unattended then he may well have been lucky to have not been in the room when this happened! I can't see it being the lipo hitting the door as there is damage to two different doors.

[Jamin_00]

He said the aerosol can did explode.

That was major though dam.

[Spanner]

read what he says chap! The aerosol blew up causing the flash fire and blowing the door off!!

Quote :-

"6s 5000mAH Zippy lipo being chared on an Astroflight 109 version 2 blinky balancer charging a 2 amps I had just charge 3 6s Thunder power 5000mah and the the Zippy was on the thrid and final cycle and was not puffed or damaged in any way. Went iside and started watching a movie about half way through the movie my dog starts acting like he wants me to let him out to go pee so I put him out hear what sounded like knocking coming from the Garage start to make my way down about 15 feet from it when all of the sudden BOOM door blast open and big orange ball of fire rush in I run out and is see several small fires burning though out the garage and the garage door blown off. I was able to get the fire out by hitting them with a pair of shorts from the laundry basket.receive a few small burns from some of the melting plastic hitting me. As you can see in the photos above there was a Spray paint can on the bench that exploded causing a flash fire to blow the doors open and off. Everyone is ok Home owner insure is investigating house is boarded up and awaiting cleaning of the smoke damage they told us not to stay there due to the strong and irratating plastic smell and soot on the walls is not good for kids so we are staying in a friends 5th wheel in front of the house. To all those want to bash on me and say this would never happen to them good for you. To all those claiming this is a fake post hopefully putting all the info and pics in the first post will clear it up for you."

[Eckchaz]

I didnt read the any posts the first time round and I just went back to read the first page of them... like a few people have already said.. I'm sceptical about the amount of damaged caused by that Lipo.. even with the aerosol can... I think its bollocks tbh.. Like my previous post... there is no possible way.. that Lipo + spray can in that amount of space would cause that kind off compression to blow off two doors!

read what he says chap! The aerosol blew up causing the flash fire and blowing the door off!!

Still rubbish.. that average sized can can not generate that kind of force sitting on a bench.. maybe if it was in a microwave.. it would be more powerfull but still not the to damage in his pictures... if that was the case.. they will be taking down buildings with spray cans instead of dynamite or C4!!

[PeteStewardson]

Remember everything has to be bigger in the US, even explosions

[J-S-Q]

I didnt read the any posts the first time round and I just went back to read the first page of them... like a few people have already said.. I'm sceptical about the amount of damaged caused by that Lipo.. even with the aerosol can... I think its bollocks tbh.. Like my previous post... there is no possible way.. that Lipo + spray can in that amount of space would cause that kind off compression to blow off two doors!



Still rubbish.. that average sized can can not generate that kind of force sitting on a bench.. maybe if it was in a microwave.. it would be more powerfull but still not the to damage in his pictures... if that was the case.. they will be taking down buildings with spray cans instead of dynamite or C4!!

Do you really think that he'd stage this whole scene just so he had something interesting to post on a heli website? You can see that there was a lipo fire and you can see that there is severe damage to the doors so Id be very surprised if this is some kind of fabricated story.

I skim read some of the posts and it seems that people are suggesting that his balancing setup is unreliable (and somewhat dated) and could have been the initial cause of the fire. Clearly there must have been some further chain of events which ended up creating the explosion.

[sacko]

Awesome!

[Eckchaz]

Do you really think that he'd stage this whole scene just so he had something interesting to post on a heli website? You can see that there was a lipo fire and you can see that there is severe damage to the doors so Id be very surprised if this is some kind of fabricated story.

I skim read some of the posts and it seems that people are suggesting that his balancing setup is unreliable (and somewhat dated) and could have been the initial cause of the fire. Clearly there must have been some further chain of events which ended up creating the explosion.

I'm not saying if its staged or real.. I just find it sceptical it would cause that kind off damage unless there was another secret fuel that caused that damage (i.e crystal meth factory! lol!) but he only says lipo + spray can. I'm no explosives/fire expert but you have too look at all the signs in the picture.. the only way a flash fire could be caused if the room was filled full off black smoke and then heated to such a degree it would explode.. looking at the pictures.. the ceiling has no smoke damage and if there was that kind of smoke to cause a flash fire/explosion.. you would smell it! To me and imo.. theres not enough evidence it was just down to the Lipo & Can which is what he's saying. If there was another fuel to cause it then yes. We all know what Yanks are like.. or hes just an insurance scammer and wants a new door! lol!

[J-S-Q]

(i.e crystal meth factory! lol!)

Bingo!

[pgkevet]

A few thoughts:
I know I bang on about history..but it does show us soem interesting explosions: flour mills, sawmills, gunpowder factories.. in most of those the exposions are caused by dust particles in the air.
The essence of any explosion is an increase in volume of gasses faster than the container can contain them. In this case the container is the garage.
We also know from more modern times that you can shape a charge and direct the blast.

If oen accept the simple premise that what the guy tells us is true (so far as he's aware) then there hve to have been other factors involved. The lipo itself just looks burnt..so w can accept it started the fire but the explosion would have to be either a very fortuitous pe-aerosolisation of the whole spray can or the can contents plus other garage items.

As a kid I was 'playing with experiments' in the garage and managed to fill the whole place with paraffin vapour but it still didn't kick off even with a naked flame (yea I was stupid..but a kid)..my point being that there's an element of good or bad luck in the distribution of primary, oxidiser and accelerant.

Another thought...just think what might have been the end result if the OP had been watching that lipo - as in been in the middle of the blast!!

When a lipo does go then there is trememndous local heat and massive white vapour. The lipo is made up of multiple thin leaves with electrolyet between them.. which in itself slows the release of combustibles.

Other things to consider.. could there have been a dud formulation or other material in the lipo paste?..but then we'd expect the lipo itself to have blown apart instead of just incinerating.

The focus of the blast is at the cente of the door..so either a narrow shaped blast or a huge compression release that folds the door at it's weakest point..either could end like that. And finally remmeber that a small explosion is going to sound a heck of a lot louder in a garage.

The way to find out, of course, is to repeat the experiment. Anyone got a garage I can use?

[trillian]

A few thoughts:
I know I bang on about history..but it does show us soem interesting explosions: flour mills, sawmills, gunpowder factories.. in most of those the exposions are caused by dust particles in the air.
The essence of any explosion is an increase in volume of gasses faster than the container can contain them. In this case the container is the garage.
We also know from more modern times that you can shape a charge and direct the blast.

The odd thing is that the rest of the garage has no burn marks, so something expanded fast enough to blow the door off but wasn't hot enough to burn anything else in the room.

[cupracing]

You guys ever watch myth busters, they shove loads of aerosol cans in a fire and it doesn't produce anything near what this has done. I think it's an insurance scam to be honest.