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Old Jul 04, 2011, 06:34 AM
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Flame proof LiPo bags

What are the range of options when trying to flame proof a LiPo battery?

I have seen products like these:
http://www.hobbyking.com/hobbyking/s...idProduct=4134

But at 155g it is a little heavy for my liking, are there any lighter alternatives?
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Old Jul 04, 2011, 07:28 AM
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Phoenix,Arizona, United States
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Heavy? its not designed to go in the plane
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Old Jul 04, 2011, 07:34 AM
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Any reason it can't though? Seems slightly safer to have the batteries wrapped up in a flame proof material.
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Old Jul 04, 2011, 08:12 AM
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Haralson County GA. USA
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LiPolys being charged generate very little heat, LiPolys being discharged as in most typical RC aircraft generate a great deal more heat. In most aircraft the LiP0lys are cooled by air flow. LiPoly enclosed in a bag equals no cooling air flow which eqyuals a hot LiPoly which equals a damaged LiPoly and one that is much more likly to puff or worse.

Charles
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Old Jul 04, 2011, 09:44 AM
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Don't buy any bag that hasn't been fire proof tested with the size lipos you will be using. Some are completely worthless for fire containment.

What could be worse than using a fire containment device you trust to protect you that doesn't work?
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Old Jul 04, 2011, 06:24 PM
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What bags have been tested and where are the videos posted.
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Old Jul 04, 2011, 06:53 PM
Reduce the drama...
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USA, OR, Damascus
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Quote:
Originally Posted by lipoflyer View Post
What bags have been tested and where are the videos posted.
The only outfit with video confirmation is (drumroll):
http://www.liposack.com/aboutus.htm
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Old Jul 05, 2011, 12:48 AM
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Thank yeww. (bows)

mw (the LipoSack guy)
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Old Jul 05, 2011, 12:51 AM
Dude, I do fly all day long!
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San Jose, California
Joined Dec 2007
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I 2nd the LipoSack! Made in America and backed by one of the best- see above guy!
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Old Jul 05, 2011, 02:39 AM
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Mark, do you recomend the LipoSack to be used inside a flying aircraft?
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Old Jul 05, 2011, 03:25 AM
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LiPoly enclosed in a bag equals no cooling air flow which eqyuals a hot LiPoly which equals a damaged LiPoly and one that is much more likly to puff or worse.
[img][/img]
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Old Jul 05, 2011, 06:10 AM
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United States, CA, Bear Valley Springs
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Quote:
Originally Posted by Dylwad View Post
Mark, do you recomend the LipoSack to be used inside a flying aircraft?
The problem comes when folks think that a custom-fitted one to a particular battery would work which it would not as the outgasses need a void to fill first before being expelled from the bag. If there is no room to vent into, the hot debris immediately shoots out of the containment without having first a chance to cool. The bag itself needs to be of sufficient quality to maintain its integrity in the process of course.

In all, the bag is designed to be used outside of an aircraft while charging or storing on a workbench or other appropriate area. User caaraa's point is also correct.

mw
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Old Jul 05, 2011, 08:28 AM
Southern Pride
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Actually that was my point as he did a cut n paste snip from my post #4.

This same subject has came up several times and I look forward to it coming up again.

Most commonly used LiPolys can vent with flames. There have been LiPolys made which are extremly flame resitent but due to less performance few in the RC filed were interested.


From over 6 years ago

http://www.rcgroups.com/forums/showp...84&postcount=3

Charles
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Old Jul 05, 2011, 03:17 PM
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Quote:
Originally Posted by everydayflyer View Post
Actually that was my point as he did a cut n paste snip from my post #4.

This same subject has came up several times and I look forward to it coming up again.

Most commonly used LiPolys can vent with flames. There have been LiPolys made which are extremly flame resitent but due to less performance few in the RC filed were interested.


From over 6 years ago

http://www.rcgroups.com/forums/showp...84&postcount=3

Charles
Charles - How do you keep up with your old posts that are so helpful?
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Old Jul 05, 2011, 03:22 PM
Southern Pride
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Lots and lots of folders and bookmarks.
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