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HomeAircraftHelicopterHelicopter Main Discussion › Puffed Lipo / To keep or not to keep...
04-24-2011 11:39 PM  7 years agoPost 1
Stephen Born

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USA

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I was flying my T-Rex 700e today at the field when the motor shut down and had to auto from 20 feet. Upon inspection, I noticed my Turnigy 6c 4000mAh lipo was puffed. I hooked to the Astro Blinky Balancer, and it shows one cell dead. I told the other pilots that I was going to give it a saltwater bath and throw it away. The pilots at the field said to keep the battery, open it up, and save the other 5 cells. I have never done this before, and I am asking the opinions of RR members. Should I throw it away or try to retrieve the other cells?

Here are some pics.

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04-24-2011 11:42 PM  7 years agoPost 2
jackheli

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Vancouver - Canada

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Edit: Gone. Good for the garbage. My experience is that when one cell goes the others will follow shortly. Done it before. Not worth it.

You're risking a spontaneous fire just by bringing it home.

Dispose of it properly.

It's easy to find an excuse to do wrong. Hard is not to find an excuse to do right.

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04-24-2011 11:47 PM  7 years agoPost 3
Stephen Born

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USA

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jackheli,

Those were my thoughts exactly, but the pilots were insisting I keep it. What is the best way to neutrize this with saltwater?

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04-24-2011 11:50 PM  7 years agoPost 4
jackheli

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Vancouver - Canada

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I leave mine in salt water for a couple of days. That seems to discharge it at a safe rate. Some green gooey will come out. Guess it might be poisonous, so use a container you want to discard.

Then it is garbage.

It's easy to find an excuse to do wrong. Hard is not to find an excuse to do right.

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04-24-2011 11:54 PM  7 years agoPost 5
doorman

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Sherwood, Arkansas

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Puffed Cell
Cut your connector off and drop the battery into a bucket of salt water OUTSIDE... let it set in there for about a week, then you can dispose of the battery safely....
I agree with JH.... no reason to take a chance on a fire... if someone is experienced in cutting the batteries apart, offer to them... but do keep it outside in a flower pot or something on that line until you get rid of it....

Good Luck.... Stan

AMA 2918-Team Spin Blades,,Castle Creations, Unique Aircraft

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04-24-2011 11:56 PM  7 years agoPost 6
Heli 770

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USA.

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04-24-2011 11:57 PM  7 years agoPost 7
Band1086

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Kennewick, Wa. USA

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It's a Turnigy 6c, it's certainly not worth the effort to keep any of it.

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04-25-2011 12:05 AM  7 years agoPost 8
Stephen Born

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USA

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Hey, thanks guys. Your responses helped me a lot. I am going outside now to take care of this. I want to get it out of the house yesterday.

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04-25-2011 12:18 AM  7 years agoPost 9
Stephen Born

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USA

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Done! No more salt in the house though.

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04-25-2011 02:26 AM  7 years agoPost 10
willanyone1

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Griffith, IN U.S.

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so if you get a bad battery the salt makes it safe to put in garbage?

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04-25-2011 02:44 AM  7 years agoPost 11
Band1086

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Kennewick, Wa. USA

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04-25-2011 02:49 AM  7 years agoPost 12
willanyone1

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Griffith, IN U.S.

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ok thanx bud ussally just bury them in the back field. but still good to know thanx.

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04-25-2011 02:56 AM  7 years agoPost 13
hootowl

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Garnet Valley, Pa.

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We drive nails in them to see what happens.

But we are dumb.

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04-25-2011 02:58 AM  7 years agoPost 14
willanyone1

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Griffith, IN U.S.

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lol ya but were county I always wanted to shoot them.

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04-25-2011 03:01 AM  7 years agoPost 15
jandrews

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Houston, Texas USA

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Be sure to discharge the pack first before putting it in salt water. If you don't and put it in salt water the connections between the cells will quickly (minutes) corrode due to there still being voltage in the pack, leaving you with NO WAY to safely discharge the pack. (I speak from experience)

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04-25-2011 03:08 AM  7 years agoPost 16
Stephen Born

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USA

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I didnt realize the battery has to sit in the salt water for 2 weeks!

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04-25-2011 03:24 AM  7 years agoPost 17
AltecLansing

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North Carolina

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We drive nails in them to see what happens.

But we are dumb.
I hit them with a shovel. Get it worked in good and start a fire. Once I can't get a fire to start from it any more, I let it sit in my wheel barrow for a few days and then toss it in the trash. I've usually had all the cells split with the shovel by the time I'm done. Seems a little extreme, but I've never seen a cell actually explode. Even in those videos of people showing that lipos can explode they don't actually explode. They burst with flames shooting out a very short distance. Mind you, don't do this close to items that can start burning. And I wouldn't recommend doing this in the middle of the city. I live in the country so not many people actually worry about people doing burnings on their property.

Man, I miss the eighties.

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04-25-2011 03:32 AM  7 years agoPost 18
MartyH

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USA

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Imagine what is being released into the air when you make these batteries burn. Please don't shoot, short or otherwise make these packs burn. Neutralize them per the best info today and dispose of them properly. Let's never give anyone a reason to slap more regulations on us.

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04-25-2011 03:34 AM  7 years agoPost 19
hootowl

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Garnet Valley, Pa.

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We used to run behind the insect fogger when they went down the street. You ain't telling us nothin....

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04-25-2011 03:35 AM  7 years agoPost 20
helidevil

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Brunswick, ME

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KEEP IT AND PUT A SCREWDRIVER THRU IT!!!!!!

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