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Discussion
Lipo Fires Are Real!!!!
I recently got to see first hand what can happen if you are not careful about charging your lipos.
A friend got back from doing his laundry to find the fire department had been to his home. He was lucky - no one was hurt, his cat was outside, and he was able to save his new mega motors! Please be careful and take precautions with your battery charging. Use a battery bunker. There are numerous battery "bunkers" available.... some folks use metal Army ammo boxes, www.aeromicro.com has a ceramic pot with a lid and holes for the gases to escape, there is something called liposack @ www.liposack.com , www.unitedhobbies.com has a knockoff one as well. invest in a good charger that knows what it is charging - take all the guesswork out of it. It can be a simple mistake to forget to change your settings from a 2100 pack to charge a 1300 pack. I use the cellpro charger from www.fmadirect.com I am sure there are others that do similar functions. Charge your batteries away from flammable items, and keep them separate from your other batteries! Make sure your smoke alarms are working properly. I think this is a case where we cannot be too cautious. I don't ever want to see another photo like this one. good luck and happy flying. Robert |
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Last edited by RCG_Jason; Jan 04, 2022 at 09:21 AM.
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I know the guy whose house that is. Without going into too much detail for personal reasons, I can just say, always be near your packs when they are charging. Use a "high quality" lipo charger that sets the voltage for you like the FMA Cellpro 4s. I personally have left my MRC microbrain 989 set for charging 2200 3s packs and then plugged in a TP3120. Luckily I noticed it when I went back to check on it a few minutes after I started and the pack was fine, but its stuff like this that can ruin your day.
As far as puffy packs go, I have had some old Apex 12c packs for 2 years. They got puffy from heat expansion after about 100 flights. Although they only charge to 12.4v max now, they are up to about 300 flights on each. Without being an expert, I have had packs puff from over discharging (left them plugged into my plane overnight) and from damage. I would never attempt to charge one of these. But I have also had packs temporarily puff from running them near the max amperage. They lose their effectiveness after a while, but so far I haven't even had one get warm when charging. So monitor your packs when charging. Use battery bunkers, lipo sacks, cinder blocks with bags of sand over them, whatever your safety method of choice is. Because burning your house down is not fun. |
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Don't want to sound nasty BUT "stupidity and lipos DON't mix" Do something dumb with lipos and things WILL happen |
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Familiarity can lead to complacency and complacency can lead to a false sense of security. Witness how we treat gasoline, for example. Handling gasoline is a lot more dangerous than handling LiPo packs and improper handling of gasoline causes a lot more fires. But gasoline has become a familiar part of our everyday lives so we tend to forget just how dangerous it can be. I personally feel the risk curve for having an undesireable LiPo event resembles an inverse arc: The newcomer stands a pretty good chance of causing an event due to inexperience and a lack of knowkedge. As he gains experience and knowledge, his risk of having an event decreases, but that risk level eventually goes back up as his familiarity with the risks may lead to not following established procedure, often without giving the possible consequences much thought. Pete |
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Last edited by PGR; Jul 27, 2007 at 11:42 AM.
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LIPO fires are for real:
Yes they are - 150 more - https://www.rcgroups.com/forums/show...58&postcount=5 |
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Pete, you really nailed it with the inverse arc. That's precisely the pattern we've seen over the years as LiPos have gone mainstream. Nice one.
One of the problems is that scary warnings are required on all products with even the remotest chance of minor failure. After years and decades of never having any failure of any kind of product plastered with scary warning labels, we are all desensitized to the fact that a few products really do deserve those warnings. |
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DO NOT OPERATE THIS EQUIPMENT IF IT'S ON FIRE Well DUH! Pete |
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Just don't walk too far - at least stay in the same room. |
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True about familiarity Pete. he had been flying with lipos for years. and he flew a lot. while we buy cheap imports from Hong Kong, he would only buy TP packs for the quality and the perceived safety of a high end battery. This just goes to show safety is important with any battery of any manufacturer.
Thanks to the moderator for making this a sticky, and thanks Hoppy for your log of all the disasters. Robert |
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From the FMA Direct website (http://www.fmadirect.com/products.htm?cat=45&nid=4):
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I definitely don't feel that way now. Pete |
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