32LikesYup, this happened.
07-23-2018, 01:34 PM
#31
so no lipo safe and charging in a closed car .. LOL being insite of a charging lipo is a must . using a lipo sak or bag also a must . ..never seen a lipo just go up. there are always some warnings- a Hsssss smoke and others there are safety warning for a reason try following them
- - -
OP: That sucks big-time. Any chance insurance will help pay for a replacement car, or at least repairs to the interior? I mean, it was technically caused by your negligence, but hopefully you have comprehensive insurance.
Also, were your batteries 2S2P, or 3S2P, or 4S2P, or something like that? I don't trust batteries that have cells in-parallel for longer runtime. If one of the cells fails, it can undergo a polarity reversal, and if you've ever watched Star Trek, you know that reversing the polarity could cause a chain reaction that'll destroy the entire ship! (seriously though, it forms a short-circuit with the good cells dumping all their power into the failed cell, and the massive buildup of heat causes the cells to rupture and catch fire.) That can't happen if all the cells are in-series, at least not unless the battery is plugged into something, because in that case a failed cell would just block all power flow.
07-24-2018, 03:23 PM
#32
Ya my insurance covered it and I'm currently shopping. It was a 2012 Dodge Journey rt.
The battery was a turnigy 5.0 hardcase 2s 69c
The battery was a turnigy 5.0 hardcase 2s 69c
07-24-2018, 08:40 PM
#33
so no lipo safe and charging in a closed car .. LOL being insite of a charging lipo is a must . using a lipo sak or bag also a must . ..never seen a lipo just go up. there are always some warnings- a Hsssss smoke and others there are safety warning for a reason try following them
07-27-2018, 01:46 AM
#34
To be fair, phone/tablet/laptop batteries are not capable of the same immense charge/discharge rates that RC batteries are. They are constructed to be significantly more stable, at the expense of lower charge/discharge rates.
I'd be interested to know what charge rate the OP was using. 1C? 2C? Higher? I wouldn't go higher than 2C when charging a LiPo, it's too risky. Heat can't work its way to the surface of the battery fast enough, and oxygen is more likely to dissociate from the LiCoO cathode and come in contact with lithium that has already embedded itself in the electrolyte.
I'd be interested to know what charge rate the OP was using. 1C? 2C? Higher? I wouldn't go higher than 2C when charging a LiPo, it's too risky. Heat can't work its way to the surface of the battery fast enough, and oxygen is more likely to dissociate from the LiCoO cathode and come in contact with lithium that has already embedded itself in the electrolyte.
07-27-2018, 03:56 AM
#35
Tech Fanatic
It's hardly perfect, but it'll do for now.
07-29-2018, 03:50 PM
#36
After I saw this I immediately put all my lipos in a steel storage box"ammo can."
07-29-2018, 05:42 PM
#37
i had a lipo that was puffed and i killed it with a shovel.lol
07-31-2018, 05:18 AM
#38
Tech Rookie
Thanks for sharing this with us. I've already read several stories of lipos catching fire or smoking a lot, even when used properly.
To those who claim one shouldn't let a lipo charge unattended and that's all your fault blabla... If lipos shouldn't charge unattended that's clear evidence they're not safe. It's like a car manufacturer blaming a driver's skills for getting into an accident when the car actually has poor breaks. That's a manufacturer holding the customer liable in case of problem although the manufacturer has brought up a hazardous product.
Yeah it can be hot in a car but is it gross negligence? In my opinion no: it's a rather common situation; not as if he had put the lipo in an oven.
Finally, to those storing their lipos in an air sealed ammo box: I've read in a German forum you should avoid that because if lipos start smoking in the ammo box the pressure will make the box blow up. Makes sense to me. Now you know, do whatever you want.
To those who claim one shouldn't let a lipo charge unattended and that's all your fault blabla... If lipos shouldn't charge unattended that's clear evidence they're not safe. It's like a car manufacturer blaming a driver's skills for getting into an accident when the car actually has poor breaks. That's a manufacturer holding the customer liable in case of problem although the manufacturer has brought up a hazardous product.
Yeah it can be hot in a car but is it gross negligence? In my opinion no: it's a rather common situation; not as if he had put the lipo in an oven.
Finally, to those storing their lipos in an air sealed ammo box: I've read in a German forum you should avoid that because if lipos start smoking in the ammo box the pressure will make the box blow up. Makes sense to me. Now you know, do whatever you want.
07-31-2018, 06:56 AM
#39
Thanks for sharing this with us. I've already read several stories of lipos catching fire or smoking a lot, even when used properly.
To those who claim one shouldn't let a lipo charge unattended and that's all your fault blabla... If lipos shouldn't charge unattended that's clear evidence they're not safe. It's like a car manufacturer blaming a driver's skills for getting into an accident when the car actually has poor breaks. That's a manufacturer holding the customer liable in case of problem although the manufacturer has brought up a hazardous product.
Yeah it can be hot in a car but is it gross negligence? In my opinion no: it's a rather common situation; not as if he had put the lipo in an oven.
Finally, to those storing their lipos in an air sealed ammo box: I've read in a German forum you should avoid that because if lipos start smoking in the ammo box the pressure will make the box blow up. Makes sense to me. Now you know, do whatever you want.
To those who claim one shouldn't let a lipo charge unattended and that's all your fault blabla... If lipos shouldn't charge unattended that's clear evidence they're not safe. It's like a car manufacturer blaming a driver's skills for getting into an accident when the car actually has poor breaks. That's a manufacturer holding the customer liable in case of problem although the manufacturer has brought up a hazardous product.
Yeah it can be hot in a car but is it gross negligence? In my opinion no: it's a rather common situation; not as if he had put the lipo in an oven.
Finally, to those storing their lipos in an air sealed ammo box: I've read in a German forum you should avoid that because if lipos start smoking in the ammo box the pressure will make the box blow up. Makes sense to me. Now you know, do whatever you want.
07-31-2018, 01:41 PM
#41
To those who claim one shouldn't let a lipo charge unattended and that's all your fault blabla... If lipos shouldn't charge unattended that's clear evidence they're not safe. It's like a car manufacturer blaming a driver's skills for getting into an accident when the car actually has poor breaks. That's a manufacturer holding the customer liable in case of problem although the manufacturer has brought up a hazardous product.
OP I am sorry. Glad the fire was contained in the car and insurance is taking care.
07-31-2018, 01:50 PM
#42
Tech Fanatic
Yes it is true, the box can't be sealed, it is dangerous. Removing the rubber seams from the lid will help, and most people also make venting holes. Mine doesn't have holes yet so I keep the lid partially open for now.
07-31-2018, 09:52 PM
#45
Tech Rookie
http://www.competitionx.com/beginners-guide-to-rc/lipo-battery-safety/
The only thing one can object is that he didn't charge his lipo in a bag. Now it certainly wouldn't have contained the fire.
But anyway a bag certainly does not help a hot lipo cool down.