Efest 18650 3400mAh not safe?

[DGr1zz13]

A couple days ago I asked on the forums for which type of batteries are safe for use with mech mods as I wasted some money buying cheap UltraFire on ebay. I got some great responses and decided to go with Efest batteries. So I did what anyone would do and found the highest mAh rating battery for my mod because I want to do this right...3400mAh Efest. Now I am reading something that these aren't safe either...For something as simple as batteries this is so confusing and I spent 26$ on 2. Please help..

 

[JaRod]

Well as far as I know Efest 3400 are protected, meaning they have a small electronic circuit integrated into the cell packaging that protects It against common events like overcharge, over discharge, short-circuit, and temperature, so if they work for you application then then fine.
I am no expert, but I have some plain ultra fire around, I've used them in mech mods vaping moderate subohm .5 and up, and nothing exploded or even overheated on me.....

 

[Bobw1951]

As JaRod says they are the protected ones, the latest Efest one are the Purple 2500mAh 35A which are the normal ones, I don't think you'll get anything with higher mAh than these without them being protected, some mods recommend not to use Protected batteries, others recommend you do (Sigelei Mechs), so best to check whether that is the case for yours.

Oh, and believe it or not a 3400mAh actually goes down to 2600mAh if you remove the protection ( not that I would advise anyone to do it ).

 

[DGr1zz13]

From what I read these are not suited for high drain though...Any more responses? Please help...

 

[Completely Average]

Here is what you need to know.

HIGH DRAIN IMR or HYBRID

If it's not an IMR/Hybrid battery, don't buy it. There are other types of batteries that work, but IMR batteries are Safe Chemistry batteries and are the preferred battery for vaping due to their safer chemistry. They don't catch fire and explode like some other types do. Make sure they are High Drain batteries as well, since vaping requires high wattage and amp draws.

I'll make this easy for you.

Since you're just looking for 18650 batteries and want the highest mAh rating possible, get these:

http://www.orbtronic.com/batteries-...i-ion-rechargeable-battery-panasonic-flat-top

You don't have to buy them from that site, but those are fantastic high drain IMR batteries.

 

[Baditude]

The Efest 18650 3400mAh battery is a protected ICR (Li-Ion) battery. These are low drain batteries. Not safe chemistry; they require a protection circuit for them to be used safely in appliances because without it they can burst into flames and possibly explode if they become stressed and go into thermal runaway.

At one time protected batteries were recommended for use in mods, but with the advent of safe chemistry batteries such as IMR (or Li-Mn) and the even newer hybrid batteries, these are now recommended.

http://www.e-cigarette-forum.com/forum/ecf-library/129569-rechargeable-batteries.html

Battery Basics for Mods: IMR or Protected ICR?

http://www.e-cigarette-forum.com/fo...43-batteries-chargers-multi-meters-forum.html

FYI, there's much more to picking the battery with the highest mAh rating. Battery chemistry, amp rating, internal resistance, the application the battery will be used in, along with the mAh rating are all important.

 

[tnt56]

And always remember!!!!!!!!!!!!!!!! Not all ICR batteries are protected. Protected against what is my question. I've used these so called "protected batteries" before. I'll stick with the IMR. And a vape safe fuse .

 

[billybedford]

Protected batteries you are relying on the protection circuit which can fail, with bad consequences. Safe chemistry batteries can vent if they fail but not explode like a protected battery would. All of our mods need to have venting to make sure a pressure build up from battery venting doesn't cause pressure build up.

 

[JeremyR]

Sorry to hear that dg, ask & research before you order next time.. You always want to get imr/ safe chemistry.

 

[kappakai]

The other thing about the purple efest 18650 35A is that they aren't really 35A. They are 35A pulse, not continuous, discharge rated. In fact, they are actually 20A continuous discharge rated. Now, granted we aren't taking 6 second hits (what I read is the line between continuous and pulse) but, when comparing batteries, you need to compare apples to apples. When Sony says their VTC line if 30A, it's a 30A continuous discharge. Compare that to a 20A continuous discharge. That's the difference between being able to run a 0.21ohm setup with a freshly charged battery vs. a 0.14ohm setup.

That's only one other factor to consider compared to the above. But really, if you're going to run sub-ohm setups, don't skimp on your batteries. Just get the VTCs. The new VTC5s are 2600mah, vs the VTC4 which are 2100mah; mah refers to capacity, the 2600mah is going to last longer, all else equal, than the 2100mah.