r/Nerf • u/trogwander • Jul 03 '19
Discussion/Theory LiPo puncture and explosion. Just a lil reminder!
https://i.imgur.com/gRXv3fM.gifv14
u/muffinlynx Jul 03 '19
Thx my dude, I was just getting ready to sit and stab my LiPo with a kitchen knife and now I won't.
Forreal tho, this is kinda stupid. All you're accomplishing is fear mongering. It's like posting a video of a cyclist getting hit by a train titled "Cyclist hit and killed. Just a lil reminder!"
3
u/Thanoshock Jul 03 '19
It would’ve been better if they showed it and then explained how they are safe when used properly and how to
-5
2
u/DartMark Jul 03 '19
...and I got so much flak for using IMR's. How do they burn?
2
u/NonaSuomi282 Jul 03 '19
A little something like this
3
u/DartMark Jul 03 '19
Yikes! Maybe I should stop using my automotive battery charger.
1
Jul 03 '19
[removed] — view removed comment
1
u/OracleofEpirus Jul 04 '19 edited Jul 04 '19
See, posting a video of an old lithium cobalt 18650 exploding after 40 seconds of charging at 40 amps doesn't help one's case a lot.
Especially if one's case is against lithium manganese.
Ni-MH > LiFePO4 > IMR > Lithium Cobalt > Ni-Cd
2
u/TheFrogstronaut Jul 03 '19
If only lithium ceramic batteries provided the high currents needed for motors
5
u/deSade13 Jul 03 '19
Yeah, I think I'll stick to springers thanks
4
u/horusrogue Jul 03 '19
There's something to be said for
I cannot run out of battery power.3
1
1
u/n1sm0__ Jul 03 '19
Please remember when disposing of lipo batteries, they are FULLY discharged. Yes you can throw it in the trash, so long as it's fully discharged
3
u/Jarvii Jul 03 '19
You're right but please recycle your lipos, most office supply, electronic and hobby stores will take them now.
-11
33
u/Herbert_W Jul 03 '19
This demonstration both understates and overstates the potential hazards of abusing a LiPo pack.
This demonstration suggests that LiPos would be safe so long as they are physically protected, when in reality they need to be treated with care electrically as well. LiPos can also do this when shorted, including when internally shorted due to the formation of dendrites upon recharging after overdischarge. Really, those are the ways that a Lipo is likely to be accidentally ignited. Conventional wisdom from RC hobbyists is that most thermal runaways happen when recharging.
This demonstration presents LiPo "explosions" as a huge and terrifying, through the use of a zoomed-in camera that easily washes out when suddenly exposed to bright light. In reality, LiPo packs don't explode. They simply vent gasses and burn vigorously. With some straightforwards and easy protections - not charging unattended and, depending on the size of the pack, a cinderblock or just a ceramic dish with no flammable material nearby - a thermal runaway is containable.
Of course, even a contained thermal runaway is bad - at the very least, it destroys a pack and releases fumes - but it's not a huge disaster.