Exploding 18650

[BuzzKilla]

my statement stated that these chargers should be placed on a non-combustible surface...
a place that cannot catch fire.
as well as a well ventilated area...
a place for the gas fumes to dissipate without harm.


Charging using a Lipo bag on your nightstand, just because you have no other place to put it, is the most irresponsible advice possible to give out.

You are putting a charger that needs air circulation to run properly, in an enclosed environment.
You don't need to be a genius to understand how much of a bad idea that is.

Charging a battery uses up energy, that excess energy is dissipated from the charger as heat.
READ THE MANUAL THAT CAME WITH YOUR CHARGER!

WHEN the charger fails due to excess heat, the consequences are unpredictable leading to a possibly hazardous situation.
Charger may shut down, it may not...
It may be on the 10th charge it may be on the 100th...
I'm not going to test it to find out (also bad advice).

It is better to use the product as intended.
In ideal conditions, rather than to hillbilly a remedy to a problem that isn't there.

Lipo charge bags have their place, this is not how they were designed to be used.

I encourage anyone that reads this not to take my words and blindly believe me.
READ your instruction manuals and follow them.
Ask the manufactures if you still have questions. It takes the same amount of effort as commenting on a thread.
Common sense will kick in.

TOO many people follow advice blindly, Go to RC shops that ACTUALLY sell these bag for proper use.
These are the people there that test the limits of battery technology. I've been part of the RC world for over a decade, and i am still learning each day.

Ask them if sticking the charger in the bag is a good idea... You would be laughed at for stating it was for your safety.

 

[njvap]

my statement stated that these chargers should be placed on a non-combustible surface...
a place that cannot catch fire.
as well as a well ventilated area...
a place for the gas fumes to dissipate without harm.


Charging using a Lipo bag on your nightstand, just because you have no other place to put it, is the most irresponsible advice possible to give out.

You are putting a charger that needs air circulation to run properly, in an enclosed environment.
You don't need to be a genius to understand how much of a bad idea that is.

Charging a battery uses up energy, that excess energy is dissipated from the charger as heat.
READ THE MANUAL THAT CAME WITH YOUR CHARGER!

WHEN the charger fails due to excess heat, the consequences are unpredictable leading to a possibly hazardous situation.
Charger may shut down, it may not...
It may be on the 10th charge it may be on the 100th...
I'm not going to test it to find out (also bad advice).

It is better to use the product as intended.
In ideal conditions, rather than to hillbilly a remedy to a problem that isn't there.

Lipo charge bags have their place, this is not how they were designed to be used.

I encourage anyone that reads this not to take my words and blindly believe me.
READ your instruction manuals and follow them.
Ask the manufactures if you still have questions. It takes the same amount of effort as commenting on a thread.
Common sense will kick in.

TOO many people follow advice blindly, Go to RC shops that ACTUALLY sell these bag for proper use.
These are the people there that test the limits of battery technology. I've been part of the RC world for over a decade, and i am still learning each day.

Ask them if sticking the charger in the bag is a good idea... You would be laughed at for stating it was for your safety.

I ageee, when I researched lipo bags after someobe here advised, I figured there was something wrong, the idea of putting the charger in the bag seemed tottaly absurd to me, the reaspn why I mentioned it is that I thought I was missing something..

Sent from my SGH-M919 using Tapatalk

 

[desk1%]

I have always advocated using a cake tin as that is the best solution - we have used that for 50 years to my knowledge and the old ways are often right.

However, people who claimed to know about batteries kept telling me to advocate using a Li-Po sack and laughing at my claim a cake tin is perfect. It was easier for me to go with the flow and promote the Li-Po sacks, because people can easily buy them and they may not be able to find a large cake tin (what we call a biscuit tin in the UK).

I know I was right originally and would like to go back to advocating the use of a cake tin, but need some sort of solid data to refute the claim a Li-Po sack is best. Please give me a series of temperature measurements for an eGo batt at full charge in a sack and in a tin, ditto for an 18650 in a TF-01. Thanks.

Also, I'd just like to point out that if you believe your Model X charger / battery are 'safe', then that's OK, but please don't tell other people who may have less experience that stuff is safe (and, by implication, that they can put it on a carpet). None of it is, because it's made to a price (and just because you paid $50 for it doesn't mean it was ex-factory at any more than $5).

I'm on team cake tin.

 

[desk1%]

I just wanted to elaborate a bit on the metal tin I use. I've attached a couple of photos to this post. As you may be able to see there are some black smudges on the tin, that is liquid electrical tape or vinyl polymer epoxy. Since the purpose of this tin is to house an electrical devise I use the epoxy to cover any sharp spots. The lid has vent holes drilled in it that allow effective cross circulation for the chargers heat exchange vents.

 

[JeremyR]

OK I have a question.....All my items are VV so I know I am OK and I watch my batteries when they are on the charger yada yada....I would like a good battery with the highest mah I can get for my stuff. I have the following: Evic, Vtube, smok gripper, and the VTR all use the 18650 batteries, however in everything except the gripper, my batteries only last about 4 hours of heavy chain vaping. What do you suggest?

Jen I would recommend a coil with higher resistance, and within you mods limits of optimal performance. Low ohms is only needed in a mechanical mod.

What ohms and voltage/watts do you run?

Those mods have a 2- 2.5 amp limit max with one 18650. (Only 4-5 amps with stacked 18350 imrs paired in a vv mod capable of it) The optimal coil resistance for maximum power on those is 2.3-2.4 ohms at 2.5 amps = 6v/15w .. Running a 1.5 only over draws your mod, runs the battery down faster, and actually provides lower power. 1.5 ohms @2.5 amps = 3.8v & 9.5 watts maximum output. With a 3 ohm coil you can probably make it 8-12 hrs with the same power output. 3 ohms at 6v is 12 w and only draws 2 amps. In effect you get 2 more watts from a 3 ohm compared to a 1.5 ohm and it actually draws less power from the battery. You can refer to this chart keep I'm mind the amp limit of your vv mod with 18650 https://docs.google.com/spreadsheet...xZLVd5aDkwUEJEZXc&f=true&noheader=false&gid=1

 

[JeremyR]

Op

Anything with fire in the name is not good.. Unfortunately those 3100 mah 6.2 amp batteries are not even recommended by obtronic for ecigs. Have you reviewed this page look at the bottom section.PANASONIC 18650 PROTECTED NCR18650A 3100mAh FREE Shipping from Florida-USA. 18650 cell-Made in Japan, Protection IC's-Made in Japan

For extra safety it is recommended to use 50% of the batteries amp limit. A basic imr has a 10 amp limit and if your running over 3 amps The 2000mah imr would likely last longer than your 3100p.

A quality charger can be ok if left in a safe environment with no flammables. It should have 2 stage charging with a low power final charge and cut off at 4.2 or lower. Check the charger cut off weekly. The tin would be perfect I agree with the bag overheating. I have an outlet by my stove and put my charger on the stove if leaving unattended. Since its a non flammable area.

 

[emus]

Op

Anything with fire in the name is not good..

Everything I bought w/ "Fire" in the name was excellent.
My "Fire" batts worked great for about 1 to 2 years; shrink wrap was very worn by the time I tossed.
My "Fire" chargers work excellent in spite of countless charge cycles.
My "Fire" high performance Cree flashlight blows typical store bought LED flashlights out of the water.

I suspect "Fire" quality control lies somewhere between Yugo and Toyota.
Do buy the correct batt chemistry for your application.

Samsung INR-18650-20R is my favorite batt.

 

[etherealink]

Sal at orbitronic told me the bag is not necessary to use with orbitronic protected batteries, now I know he is the vendir, so....
Niw how do I charge the batteries while in the bag or should I.put them in the charger and then put the whole assembly in the bag?

Sent from my SGH-M919 using Tapatalk

You say vendor, I read used car salesman. No offense to your buddy Sal, but remember that his job is to *sell* things and not to make sure you are safe. There has not been a battery made that is safe enough to put on a charger and walk away from. Consider for a moment that the battery you are charging is the sake type that caught fire and exploded in electric cars, and then tell me that you are OK going to sleep with a battery charging.

Do not ever leave a battery on the charger unless you are willing to meet the fire deparent in the middle of the night in your pj's.

Now as far as your first question about the 18650 I have had Efest batteries get hot in my kamry k101 (different cosmetic design only) and been able to remove them with no problems, no guarantee that you will be able to do the same, but the heat was obvious.

The fact that they are called "safe" is a note on the chemistry used inside the battery and does not mean that they cannot have a thermal meltdown *literally* at any time. Be smart and safe, use a trusted battery that has a higher amp rating AND a proven record for anything you are doing, the outcome for not being careful could cost you your life.

 

[etherealink]

OK I have a question.....All my items are VV so I know I am OK and I watch my batteries when they are on the charger yada yada....I would like a good battery with the highest mah I can get for my stuff. I have the following: Evic, Vtube, smok gripper, and the VTR all use the 18650 batteries, however in everything except the gripper, my batteries only last about 4 hours of heavy chain vaping. What do you suggest?

High mAh does not always translate into safe in terms of amp limit.

As far as batteries lasting 4 hours it sounds that you are not getting them fully charged (no matter what your charger says. I would suggest the Efest 18650 with 2250 mAh, at 1.4 ohms in a dual coil set up I still get over 14 hours and have around 3.5 volts left in the battery. I would suggest you get a multimeter and see what the voltage in your battery is when your charger says they are done charging and keep in mind that running them down (discharging) below 2.5 volts (I think that's the number) can cause permanent damage that can make them unusable.

Just keep in mind that this is a 10 amp battery and is not designed for sub-ohming like a 30 amp battery is.