i have a TP 3s 1320 pack and stabbed one cell with an knife, is this bad? what will happen? i was thinking about putting some epoxy on the small cut. thanks

If you are efficient with a soldering pencil and a solder sucker you can save the rest of the cells in the pack. You MUST Submerse the punctured LiPo cell in salt water ASAP doing so will neutralize the electrolyte and make it safe for disposal. Be certain to Submerse it completely in a high sodium solution.

I am not certain How the battery will react to Epoxy however you will have a fairly high risk of fire if you do either dispose of the bad cell or the entire pac.

Better safe than sorry, is your house or your life worth a $40 dollar battery? Be careful not to short out your LiPo battery pacs this will definitely cause a fire.

Be Safe

That is very bad I stabbed one to see if i could relive pressure stupid Idea on my part.It blew up I didn't know about that untill it happened I would just buy a new pack If it went threw all of them. or if you think it did do what whackinski said. I do sell 6 cell lipos 3s2p and for a test to be sure of safety we tried to blow them up so my coustemers would be safe with them and it will not catch on fire if you short them it will just shock the piss out of you and your cells will be no good. We found the only way to make them catch fire is to discharge them at a very high rate or charge them at a high rate.

Sky you are INSANE and you are completley wrong. Check out this link it's a good place to start learning about LiPo batteries. Knowledge is power.
http://www.rcgroups.com/forums/showthread.php?t=209187

A dead short is discharging them at a high rate.can't get anyfaster than that.

Rather than edit out the name calling, I would ask skysthelimit to be the bigger person and refrain from escalating things. Take the high road, or in our case, runway.

A short circuit is, by definition, a high-rate discharge. If you accidentally touch the leads together momentarily, you're going to be just fine. It's when you leave them shorted and the battery gets hot that you're in trouble. That's just one mode of failure, though.

Disposal is simple. Drop the cell in a container of salt water until it stops bubbling. Salt content isn't important, but you can't have too much AFAIK.

I appologise to Sky for calling him INSANE, howerver with this subject your data must be accurate. A simple fire is nothing unless you wind up hurting yourself or other innocent people.