Intentional short

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Should I intentionally dead short a 5s 8ah lipo battery just to see what happens

Poll ended at Feb 05 2015 5:49pm

1 yes and video it
12
100%
2 no its too dangerous
0
No votes
3 you are an idiot who shouldn't be around lipo
0
No votes
 
Total votes: 12

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100volts+   10 kW

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Intentional short

Post by 100volts+ » Feb 02 2015 5:49pm

I want to intentionally dead short a leaky 5s 8ah battery.
puffed and leaking.jpg
puffed and leaking.jpg (91.19 KiB) Viewed 2346 times
Here is the video I made a couple of days after the post.


Last edited by 100volts+ on Feb 04 2015 7:39pm, edited 1 time in total.
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dnmun   100 GW

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Re: Intentional short

Post by dnmun » Feb 02 2015 6:30pm

you can use the remaining good pouches as spares on another battery pack.

Ohbse   10 kW

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Re: Intentional short

Post by Ohbse » Feb 02 2015 6:53pm

I seriously doubt there are any good cells in that pack. I certainly wouldn't roll the dice on reuse.

Shorting it out though, that's worth doing.

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100volts+   10 kW

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Re: Intentional short

Post by 100volts+ » Feb 02 2015 7:18pm

I seriously doubt there are any good cells in that pack.
It measures over 15.5v so it should do something. and that is after 3 years in an ammo can. I have to prop the phone cam on something though because my wife won't have anything to do with shorting it. My dad says she shows more maturity than me. (that's sad because I'm fixing to retire)
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Unlike puppets we have the possibility of stopping in our movements,
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act lies the first steps towards freedom. - PETER BERGER Sociologist

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TheBeastie   1 MW

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Re: Intentional short

Post by TheBeastie » Feb 03 2015 1:35am

This about you having a learning experience so you can deal with safety better in the future.
I say you should charge it up to the max first... This seems to be important to get a more realistic picture of how bad it can get.
If you really want a show, over charge by around %10 should be a good test.
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amberwolf   100 GW

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Re: Intentional short

Post by amberwolf » Feb 03 2015 2:30am

Do you have an ammocan?

If so, and you do this "test", please see my ammocan / RC LiPo pack build/testing thread about how I modified the can (it's really simple) and try the test in the ammocan, to see if a full-bore burning pack will be stopped by the can from exhausting flame out of teh can itself. (to see if it's able to contain the fire completely)


It'd not only be fun to see tried, it'd also serve a more-or-less scientific purpose. :wink:

dnmun   100 GW

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Re: Intentional short

Post by dnmun » Feb 03 2015 3:09am

if you intend to just throw away the good pouches why not just put it on the bulk charger and overcharge it and measure the temperature of the pack when it finally goes to thermal runaway.

you can use a thermocouple inserted into the pack and run your leads out to the meter so you can tell how hot it is getting as you overcharge it and then we can have some useful info about what temperature of thermal breaker to use for an alarm on the pack charging.

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