Two Cell Lipo looks like a pillow now

It won't do much. Once this starts you might as well replace them. The open circuit voltage will read 4.2/cell, but that's it. Once you apply a load they cave.

IMMEDIATELY get it out of your house, garage or car and place it on a non-flammable surface away from anything flammable. It is now junk and a fire hazard. Look to Thunder Power's web site for disposal instructions.

get rid of it. not worth a fire. mk

Thanks guys, smacked it with an axe, and buried it in the yard.

As stated, not worth the possible bigger loss due to fire

-- indoruwe

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You are suppose to drive a silver spike through its heart! At least this is implied by some of the horror stories we have read regarding Lithium. :-0

Not the best way to dispose of cells. Check this: NiMH: place in regular trash.

- NiCd: recycle (cadmium is toxic).

- LiPo: puncture plastic envelope, immerse in salt water for several hours, place in regular trash.

I punctured a Li-Po once, had a little glow and smoke to it. I took it in the yard and dumped ice on it. no Prob. Guess I'll get the salt water next time. mk

Oops .... Spelling mistake !! :eek: Should have been : Burned it in the yard. Made quite a mess tho ! :

-- indoruwe

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I get the impression that everyone is treating their LiPo packs as though they are handgrenades with the pin about to fall out. What's the deal? I'm new to these critters.

Ed Cregger

I keep mine in glass jars with metal lids!

BILL

Well if not completely discharged, they have enough enerygy to ignite, and enough organic chemistry to burn, quite explosively.

Think 'small firework'

They aren't as bad as that, but they aren't as tame as other suggest. They are DIFFERENT than what you are used to (NiCds, etc). Once you learn the differences and the handling requirements, you should be fine.

This makes me wonder why/how anyone would sell them to people knowing full well that they could burn down a dwelling. I take it that this phenomenon isn't that common?

Ed Cregger

NiCds can burn down a building. Candles can burn down a building.

No, it isn't very common and they give you some warning.

I bought a couple of Li-Poly packs a while back. I'll have to read the material that came with them.

Yes, NiCads are excellent for exploding when shorted, etc. Nothing is without risk.

Ed Cregger

"This makes me wonder why/how anyone would sell them to people knowing full well that they could burn down a dwelling. I take it that this phenomenon isn't that common? "

If you have common sense and treat the li-po batteries with respect you probably will not have a problem. Make sure you use a Li-Po specific charger. Do not charge at more than 1C(example, if you have a 2100mah battery, charge at no more than 2.1 amps. 1320mah, charge at no more than 1.3 amps, and so on). Do not exceed the maximum continuous amp draw ratings for the battery.

Assuming you want to take your li-po flying, you need to measure the amp draw to ensure you aren't pulling too much current. The way I do it is to hook up an amp meter between the positive from the battery and the positive to the model. The ground gets connected normally. Run the model up to full throttle with the prop you intend to fly with and see where the amp draw sits after a few seconds. The amps shown in this configuration should be a worst-case scenario. If it is within the limitations of the battery you should be fine. Otherwise you need to explore options for reducing the amount of current, such as changing the propellor, or perhaps reducing the size of the pinon gear on the motor.

Chris

No more than cans of glo fuel igniting and taking out planes, cars or peoples model rooms.

I've never heard of a gallon of fuel self igniting. Have you?

Ed Cregger