AW IMR 18490 and 18650 battery failure

[eg-guy]

The 650 got really hot while vaping, the temperature kept rising, it burnt my hand a little. I unsrewed the lid and tossed it in the sink. Half the plastic had melted. The 490 discharged while vaping, like a small explosion. Both batteries were used in a k 100 telescoping mod/vivi nova with 2.8 ohm attys for the past 6-7 months. The batteries, charger, and attys were all purchased from provape. Is thing normal for these batteries?

 

[RWDY]

AW IMR batteries will get hot and vent when they are exposed to a short, they are just not supposed to catch fire.

 

[eg-guy]

Is it possible for the atomizer to cause a short? I didnt have any problems until i used new vivi nova minis. The 650 died two weeks ago and the 490 died this morning.

 

[RWDY]

Most definitely. I've never used the viva nova but a common place for a short is in the 510 connection, usually caused by a bad insulator.

 

[eg-guy]

RWDY, Thank you for the quick replies and shared knowledge. If I could give you rep points, I surely would.

 

[Nermal]

I've no idea what a rep point is, but it is possible to click the like button at the bottom of his post.

 

[suspectK]

^might be using the ecf app..not tapatalk.

 

[pnyc]

RWDY is corrected. Shorts in the atomizer or connector/adapter are common.

http://www.e-cigarette-forum.com/forum/gg/324763-aw-imr-fail.html

 

[Baditude]

There could be a couple of reasons why these batteries went into thermal runaway:

• Some mechanical mods (especially those which are "telescopic" to accept different size batteries) can put too much pressure on the battery ends and dent or actually puncture the ends of the battery; this compromises the structural integrity of the battery itself, making it more likely to vent when stressed. The K-100 is a notorious mechanical mod to cause this to occur.
  
  
• A short in either the firing pin, 510 connector, or the atomizer itself. Since a mechanical mod has no built-in protection circuitry (like a variable voltage PV has), you are always at risk to have a battery to go into thermal runaway. A regulated VV mod will refuse to fire if there is a short. This is the very reason why veterans recommend that novices use a regulated mod instead of a mechanical mod as their first mod .

 

[eg-guy]

There could be a couple of reasons why these batteries went into thermal runaway:

• Some mechanical mods (especially those which are "telescopic" to accept different size batteries) can put too much pressure on the battery ends and dent or actually puncture the ends of the battery; this compromises the structural integrity of the battery itself, making it more likely to vent when stressed. The K-100 is a notorious mechanical mod to cause this to occur.
  
  
• A short in either the firing pin, 510 connector, or the atomizer itself. Since a mechanical mod has no built-in protection circuitry (like a variable voltage PV has), you are always at risk to have a battery to go into thermal runaway. A regulated VV mod will refuse to fire if there is a short. This is the very reason why veterans recommend that novices use a regulated mod instead of a mechanical mod as their first mod .

Thanks for the explanation. I'm done using the k 100, too much risk. I ordered a provari.