etriker
100 kW
bigmoose said:Let's see if I can repost the pictures from the 18650 explosion threat that Ypedal posted above... certainly impressive:
So was the damage to his hand from the metal of the flashlight or the metal from the cell ?
ALMOST BURN MY APARTMENT WITH 18650 CELLS!!
- Thread starter lifepo4ever
- Start date
So was the damage to his hand from the metal of the flashlight or the metal from the cell ?
etriker
100 kW
I googled it for you Big Moose.
Now you can show lots of pictures of exploding flashlights.
http://www.google.com/#sclient=psy-ab&q=flashlight+exploded&oq=flashlight+exploded&gs_l=hp.3..0i22i30l3.2328.12422.0.12969.19.9.0.5.5.0.2297.5470.3-3j2j2j9-1.8.0....0...1c.1.21.psy-ab.6ZPWPWWM_eo&pbx=1&bav=on.2,or.r_qf.&bvm=bv.49478099,d.eWU&fp=4bc911a2592fcf00&biw=1016&bih=395
That is what this thread is about right ?
Not just li ion cells explode.
http://www.wthr.com/story/15008952/13-investigates-exploding-alkaline-batteries?clienttype=printable
Now you can show lots of pictures of exploding flashlights.
http://www.google.com/#sclient=psy-ab&q=flashlight+exploded&oq=flashlight+exploded&gs_l=hp.3..0i22i30l3.2328.12422.0.12969.19.9.0.5.5.0.2297.5470.3-3j2j2j9-1.8.0....0...1c.1.21.psy-ab.6ZPWPWWM_eo&pbx=1&bav=on.2,or.r_qf.&bvm=bv.49478099,d.eWU&fp=4bc911a2592fcf00&biw=1016&bih=395
That is what this thread is about right ?
Not just li ion cells explode.
http://www.wthr.com/story/15008952/13-investigates-exploding-alkaline-batteries?clienttype=printable
SamTexas
1 MW
Let's also show a few pictures of cars going up in flame or exploding. Best way to get people(?) out of the cars and onto bicycles (non-electrified of course).
etriker
100 kW
SamTexas said:
When someone gets killed on a bycycle in Tampa they put up a ghost bicycle. There are too many of them.
http://ghostbikesfilm.com/post/1562662887/kayoka-kay-ishizuka-ghost-bike-memorial
My chances of being killed by a person texting are way better than getting killed by an ultrafire cell exploding.
(being as I would never buy or use an ultrafire cell)
etriker
100 kW
I might have better luck getting an ultrafire cell to explode but I have no reason to.
I only use quality name brand `18650 cells from name brand oem laptop packs to make ebike packs.
That way I am sure the cells really are Samsung or Panasonic.
Real deal Samsung and Panasonic cells are not easy to get to explode. I have tried many times.
I have bought bootleg fake cells on eBay and some sellers are very clever. That is why I like oem laptop packs.
I don't have time to mess with low quality cells. You got time for that ?
http://www.youtube.com/watch?v=bFEoMO0pc7k
I only use quality name brand `18650 cells from name brand oem laptop packs to make ebike packs.
That way I am sure the cells really are Samsung or Panasonic.
Real deal Samsung and Panasonic cells are not easy to get to explode. I have tried many times.
I have bought bootleg fake cells on eBay and some sellers are very clever. That is why I like oem laptop packs.
I don't have time to mess with low quality cells. You got time for that ?
http://www.youtube.com/watch?v=bFEoMO0pc7k
bigmoose
1 MW
etriker said:
I must have missed something?
etriker
100 kW
bigmoose said:
You did not miss it.
The OP never said what brand the exploding cells were !
Read the whole thread. He won't say or could not understand my question because it was in English ? ? ?
I am not even going to get on here and try to speak French ! ! !
Will not disrespect and butcher French !
SamTexas
1 MW
That does not mean a genuine Panasonic, Sanyo, Samsung... 18650 cell would never catch fire or explode. The chance is minuscule but it's there. The same thing applies to any device that's designed to store energy, man made or naturally. A piece of paper, a twig of wood for example. What matters is the safety of one battery relative to another battery.
The fact that some promoters of Hobbyking RC LiCo is "concerned" about the safety of genuine laptop cells is ironic at best, and plainly deceptive at worst. Are they truly that ignorant (that's sugar coating for extremely stupid) or do they have an agenda?
The fact that some promoters of Hobbyking RC LiCo is "concerned" about the safety of genuine laptop cells is ironic at best, and plainly deceptive at worst. Are they truly that ignorant (that's sugar coating for extremely stupid) or do they have an agenda?
etriker
100 kW
SamTexas said:
I do know this. Using E.S. to confuse people about batteries is not a pro ebike agenda.
Ypedal
100 TW
My understanding is that the cells were from a magicshine headlight.. cells are not labeld. Hence he canot tell you what brandy they are
etriker
100 kW
Ypedal said:
Ouch, not labeled. I have never seen a not labeled 18650 cell.
Not labeled and exploded. Ouch !
I took apart a hk nano pack and all the cells were labeled except the one that shorted and failed. It had no markings.
All oem laptop pack cells are labeled ?
etriker
100 kW
ALMOST BURN MY APARTMENT WITH UNLABELED 18650 CELLS ! ! !
SamTexas
1 MW
That's my understanding too. Let this be a lesson for anyone buying 18650 LiCo cells, individually or pre-packaged. If you are not 100% (yes, 99% is not enough) sure that cells are made by Panasonic, Sanyo, Sony, Samsung or LG, move on, don't take any chance. Battery in itself is a potential danger already, no need to take on additional risk.Ypedal said:
There might be more worldwide, reputable 18650 LiCo manufacturers that I don't know of. Feel free to add to the above list, but ONLY when you are ABSOLUTELY SURE it's a reputable manufacturer with a proven track of record. No need to add additional confusion to an already deliberated murky subject.
etriker
100 kW
Or recalled battery packs.
Magicshine battery recall.
http://www.bikeforums.net/showthread.php/693194-GeoMan-Halts-MagicShine-Sales-Due-To-Faulty-Battery-Packs
Magicshine battery recall.
http://www.bikeforums.net/showthread.php/693194-GeoMan-Halts-MagicShine-Sales-Due-To-Faulty-Battery-Packs
SamTexas
1 MW
etriker said:
No. I have found questionable red, 2400mAh cells in genuine Dell packs. My research indicated that those were "Japanese Grade A" cells used by laptop manufacturers when brand-name cells are in short supply. Obviously several emails to Dell's Technical Support Center were totally ignored.
Tip: These red cells are commonly sold as Sanyo cells. They ARE NOT. All Sanyo red cells have several engraved markings on the skin: "Sanyo" and "UR18650yy" where yy is FJ, FM or something else depending on the cell's capacity. Very clear to the eyes, but not so easily captured by a typical digital camera.
That said, I have tested these non-Sanyo cells beyond their design limits and they do well. Still I don't recommend them.
etriker
100 kW
http://www.google.com/#output=search&sclient=psy-ab&q=Magicshine+battery+recall&oq=Magicshine+battery+recall&gs_l=hp.12..0j0i22i30l3.2297.2297.0.4000.1.1.0.0.0.0.1375.1375.7-1.1.0....0...1c..21.psy-ab.but7UatUsBs&pbx=1&bav=on.2,or.r_qf.&bvm=bv.49478099,d.eWU&fp=d20fe0db5e2f7e71&biw=1016&bih=395
More info.
More info.
SamTexas
1 MW
Recall or not, I would never buy a battery from MagicShine UNLESS they specifically disclose the exact brand and model of the cells they use. And a picture of the pack showing the actual cells before the shrinkwrap is installed. MagicShine is a LED light manufacturer, not a battery manufacturer.
etriker
100 kW
SamTexas said:
Right ? After reading this thread for sure !
At least they told people the batteries had a problem.
Word does not get out that well though.
Worth checking because some laptop packs have been recalled too.
http://www.cpsc.gov/en/Recalls/2011/HP-Expands-Recall-of-Notebook-Computer-Batteries-Due-to-Fire-Hazard/
The OP's pack had a red cell and a green cell ? 2 different kinds or brands in the same pack ?
