Why I should not use these Batteries?

[Fisheeboy]

Seen these mentioned on another forum today.
I've never heard of em before. They seem like some pretty fancy batteries.
But I don't think anything about the ratings would suggest that they are a safe battery fro vaping.
Can I get some solid feedback on these batts please?

Why Should I or anyone else not use these in a mech mod?

Or....are they okay for vaping?

LITHIUM-ION RECHARGEABLE BATTERIES 3.7v 3400mAh 18650 PROTECTED

 

[anumber1]

Those batteries are based on the Panasonic NCR18650B cell.

It is not a high drain battery and has a 6.8A limit.

It's chemistry is very close to ICR chemistry rather than IMR chemistry. This makes it more prone to venting violently if shorted instead of a less violent vent of an IMR type cell.

The 3400 mAh rating is based on that battery operating down to 2.5v. Unfortunately the discharge curve of that battery shows it puts out a significant portion of it's total mAh available below 3v. A regulated PV will shut down at 3.2v typically so a person will never realize a significant portion of this battery's capacity.

There are better choices out there for use in a PV. That would be an absolutely great battery for a higher end LED flashlight.

Also a protected battery doesnt work well in most regulated mods.

 

[8dragon9]

If I read those specs correctly could you explain to me why you would want to use them? Most of the purpose to expensive, nicer, ecig batteries would be higher amps. Those have an output of 3.5amps. seems like paying 4 times as much as a VCT4 for 10 times less the applicable statistics.

 

[Baditude]

Agree with anumber1.

 

[Baditude]

The average Joe shopping for batteries often does not know anything about a battery's chemistry or amp rating. These people's understanding of batteries usually meant that the battery with the highest mAh rating would last the longest on a charge, so it must be the better battery. Right?

Not neccessarily so with e-cigs. Flashlights are a low drain application and function perfectly well with an ICR battery. Ecigs are a high drain application. The majority of our atomizers perform best with a high drain IMR battery. Not all novices know this.


With e-cigs, the chemistry (IMR) and amp rating is more important than mAh rating. The mAh rating is only important once the priorities of chemistry and amp requirements have been met.

Using Ohm's Law, running a device at 4.2v with a 1.8 ohm coil will draw 2.3 amps from the battery. This is safely below the 2.65 amp rating of the average 2600 mAh ICR 18650 battery. However, using a homemade 1.0 ohm coil at 4.2v on a RBA will draw 4.2 amps, which is way over that battery's amp limit.

Using a comparably-sized 18650 2000mah IMR battery with a typical 10 amp rating, it can handle that 1.0 ohm coil with ease.

 

[SupplyDaddy]

Their own numbers say these are not for Vaping.. anumber1 and Baditude see this, as I do Really? 0.2c rating? No way in my vapes.. On my flashlight, it's a different matter!