Help me pick the right battery :)

[Lacquer head]

So I'm not even going to attempt to get a vtc5 18650 with so many fakes and I wanna build a low as .... build ~.01-.1, any suggestions? And anyone know how low I can go on the efest 35A 18650 2600mAh? Running a .37 in there now only makes my atty (plume veil) hot when I'm mad cheaffin.
EDIT 2500 mAh was a little tired when I wrote this

 

[Criticool Hit]

EFEST IRM 2500mah 35/61amp

They are rebranded LG batteries. Very high quality. I have been using them since they came out. Ill never buy sony vct5. They are always out of stock everywhere... and when they are in stock they are way overpriced or counterfeit.

Just make sure you get them from a reputable source like eciggity. All legit efest batteries have a security code and anti counterfeit badges on them.

 

[Ryedan]

So I'm not even going to attempt to get a vtc5 18650 with so many fakes and I wanna build a low as .... build ~.01-.1, any suggestions? And anyone know how low I can go on the efest 35A 18650 2600mAh? Running a .37 in there now only makes my atty (plume veil) hot when I'm mad cheaffin.

Yup, there are no authentic VTC5 on the market that I know of these days.

There are no Li-ion 18650 batteries that will safely handle 0.10 ohms or less. 0.1 ohms draws 42 amps at 4.2V. 0.05 ohms draws 84 amps. The highest output batts rate 30 amps.

I'm not aware of a Efest 35A 18650 2600mAh batt. There is a 2500 mAh that Efest calls a 35 amp battery, but it is really a LG 20 amp battery.

This is a good post with links to a lot of vaping information: One Stop Reference Shop For New and Experienced Vapers. I suggest you read anything there on batteries, Ohm's law and sub-ohm vaping.

 

[Ryedan]

EFEST IRM 2500mah 35/61amp

They are rebranded LG batteries. Very high quality.

Yup, LG makes good batteries, but they are still 20A batteries. They are also usually cheaper if you get them from LG

 

[Criticool Hit]

They are most assuredly not 20 amp batteries or i would be short a face and a few fingers. They are definitely 35 amp continuous 61 amp burst (burst is 6 - 10 seconds) which makes it perfectly acceptable to use on low ohm devices as you aren't generally pulling more than 10 seconds at 60 amps. It should also be noted that "re branded" doesn't always just mean a new sticker and a shrink wrap. They take the base battery, slightly alter its stats slap a new sticker on it and sell it. Which is what the efest are. The base design is off the 20 amp H2 series but LG has modified it for higher drain applications.

There are endless youtube videos of people stress testing these batteries. Even safely disassembling them to show what's actually inside. And more importantly... What these batteries are actually capable of.

So lets say you are using a VW device @ 200 watts. Which now a days means you're running 2 batteries in serial for a total of 7v@3.5 or 8.2v@4.2v.(charge)

Now... 0.1ohm coil @ 200 watts will draw 44.72 amps @ 4.47 volts.

Meaning you are well within your 60 amp 10 second pulse limit and can go even higher on the wattage... or lower on the resistance.

Alot of people don't take the time to download the manufacturer spec sheets on batteries so they only see what the store tells them.

The EFEST batteries are really great. Just don't confuse them with their 20amp little brothers.

There are just so many damned batteries out there its hard to find the exact one with the exact specs. You have to wade through a sea of misinformation, counterfeits and just general rip-offs. So whatever you do. Whatever you read. Just do your homework. Download the spec sheets. Make sure what you are using is right for you. Don't always rely on others for information. As in vaping ESPECIALLY with batteries there is a ton of misinfo out there.

 

[UncLeJunkLe]

Yup, LG makes good batteries, but they are still 20A batteries. They are also usually cheaper if you 18650 LG 18650HE2 2500mAh High Discharge Flat Top get them from LG

Interesting. Is Illlumn a subsidiary of LG? And if so, why are they selling competing brands? I never saw a manufacturer do such a thing.

 

[Criticool Hit]

Interesting. Is Illlumn a subsidiary of LG? And if so, why are they selling competing brands? I never saw a manufacturer do such a thing.

They are not. LG batteries are produced by LG-CHEM-POWER Ltd. LGCPI

In this graphic you can see a basic layout of LGs subsidiaries relating to production.




Again it should be noted that its likely that there is a LG logo on the building... But the actual manufacturing plant is owned and operated under a different conglomerate in China to subvert both EPA and Human rights laws regarding manufacturing with hazardous materials. People wouldn't be too happy if that 9 dollar battery suddenly cost 30 dollars now would they?


This thread is going off the rails lol.

 

[Ryedan]

Interesting. Is Illlumn a subsidiary of LG? And if so, why are they selling competing brands? I never saw a manufacturer do such a thing.

Sorry, the way I worded my post was not too clear. Illumn is a retailer. The link in my post is for the actual LG HE2 battery on the Illumination Supply website. That is the battery that Efest re-wraps as their 2500 mAh, supposed 35A battery.

There are a bunch of other battery suppliers that do this too.

Here's a thread about it with a lot more information: Purple efest 18650 battery warning.

Also, from the first article linked to there, the Efest Purple 20A, 3100mAh actually has a max continuous discharge rating of 4A and 6.4A pulse. That one is apparently a Panasonic NCR18650BE.

 

[Criticool Hit]

I wont lie... It took a long time to find just the right battery from the right retailer. I even called several places to talk directly with them about the batteries.

Eciggity is the only one i have found selling true 2500mah 35amp continuous 60 amp pulse batteries. With the proper certificates and anti counterfeit. (that i could find).

Give it a few more years... Once all this legal hoopla is over regarding vaping, batteries will be produced specifically for us and this will all be a distant memory we laugh over.

 

[Rsunderl]

They are most assuredly not 20 amp batteries or i would be short a face and a few fingers. They are definitely 35 amp continuous 61 amp burst (burst is 6 - 10 seconds) which makes it perfectly acceptable to use on low ohm devices as you aren't generally pulling more than 10 seconds at 60 amps. It should also be noted that "re branded" doesn't always just mean a new sticker and a shrink wrap. They take the base battery, slightly alter its stats slap a new sticker on it and sell it. Which is what the efest are. The base design is off the 20 amp H2 series but LG has modified it for higher drain applications.

There are endless youtube videos of people stress testing these batteries. Even safely disassembling them to show what's actually inside. And more importantly... What these batteries are actually capable of.

So lets say you are using a VW device @ 200 watts. Which now a days means you're running 2 batteries in serial for a total of 7v@3.5 or 8.2v@4.2v.(charge)

Now... 0.1ohm coil @ 200 watts will draw 44.72 amps @ 4.47 volts.

Meaning you are well within your 60 amp 10 second pulse limit and can go even higher on the wattage... or lower on the resistance.

Alot of people don't take the time to download the manufacturer spec sheets on batteries so they only see what the store tells them.

The EFEST batteries are really great. Just don't confuse them with their 20amp little brothers.

There are just so many damned batteries out there its hard to find the exact one with the exact specs. You have to wade through a sea of misinformation, counterfeits and just general rip-offs. So whatever you do. Whatever you read. Just do your homework. Download the spec sheets. Make sure what you are using is right for you. Don't always rely on others for information. As in vaping ESPECIALLY with batteries there is a ton of misinfo out there.

Indpendent tests show them to be 20 Amp continuous and 35 amp pulse. There is no battery that's rated at 35 amp continuous. Also, your claim that Efest has modified the battery to withstand higher drain doesn't hold weight. to do that, you would have to take the battery fully apart and re-manufacture its chemistry. Something that no battery rebranding company is going to do.

I firmly believe that what you are doing is dangerous and it's only a matter of time before you experience venting. I just hope that you or others nearby don't get too hurt when it happens.

Here's a link to look at:
EFEST IMR 18650 3100 mAh 20A: Attention, these batteries are dangerous!

 

[Rsunderl]

@Crticool Hit:

My apologies - we're cross-posting. Glad you continued and mentioned the Eciggity site. We were apparently talking about two different batteries, and it looks (on first glance, at least) that newer batteries have come out that I wasn't aware of. I'll have to do a little more research.

Do you know if the 32/64 amp batteries have been independently tested? If so, can you provide a link? It seems a bit unusual to have double the pulse rate than the continuous rate, so I'm wondering about that.

 

[Ryedan]

Eciggity is the only one i have found selling true 2500mah 35amp continuous 60 amp pulse batteries. With the proper certificates and anti counterfeit. (that i could find).

No manufacturer makes a 18650 that is over 30 amps continuous. LG does not make another version of their HE2 for Efest at 35A. If I'm wrong, please show me proof. I would honestly like to know if these batteries were out there. I would also guy a few immediately

Also, once you get into the pulse ratings, things get a bit risky. If your mod autofires the battery will eventually vent. As batteries get older and/or get abused their internal resistance goes up which means they heat up faster so max continuous discharge rates go down.

ETA: I don't see that battery at Eciggity. I do see a Efest 26650 32A/64A 3500mAh though. They also spec the 2500 mAh 18650 labelled 35A correctly at 20A continuous.

 

[Rsunderl]

Folks - be aware that the batteries that are rated on Ecigitty's site as 32/64 are 26650 batteries, and not the 18650 batteries.

 

[Criticool Hit]

@Rsunderl

No problem.

Consider the facts....

Here we see that the EFEST IMR 2500mah battery is.... IN FACT... 100% capable of 35 amps of SUSTAINED current.

The lower mustard colored line shows us that while the battery does in fact achieve its 35 amps continuous rating... Doing so reduces the actual MAH rating to 1.7mAH. Which is fine. Just drains quicker. Which is entirely understandable and expected... Here we can also see the optimal curve for the battery is infact 20 amps... But is in no way "20 amps only or she'll blow!"

Discharge Capacity over amp hours


Also... I won't experience venting for a couple of reasons....

1: I run a regulated device. Which has all the nice built in protection features. Such as low voltage cutoff... So whenever the device cannot supply my desired wattage with what's left... it just simply doesn't fire.

2: I only run it at about 50 - 60 watts max on a .2ohm Which means im barely using 17.32 amps... and thats when the battery is near its band at 3.5 volts.

This is all using its continuous rating. Not even its burst. Which assuming your battery is a piece of crap and only gets 30amps continuous and 40 burst. You are still well within your bounds.

If you REALLY still don't trust it... just assume the 35 amp rating is pulse and 20 is the continuous.

Also to be fair that data on that link you posted is over 7 months old. Here is some more "current" info. Pun 100% intended.

Test of Efest IMR18650 2500mAh (Purple) 2014

If you need help understanding the charts or how the tests were done there is info at the bottom to testing procedures. Or you can just ask!


EDIT: Also i do now see that eciggity as changed the description of the battery to 20A-c 35A-p. Which is good... It will keep people safe... But the battery is most certainly capable of more. As always... use at your own risk

 

[Rsunderl]

@Criticool Hit:

Thanks for the update and thanks for being so gracious regarding my knee-jerk reaction.

 

[Criticool Hit]

@Criticool Hit:

Thanks for the update and thanks for being so gracious regarding my knee-jerk reaction.

Hey no problem at all man... When i was new i used to fret about all this stuff as well... but when i started there wasn't nearly the amount of info and tests that are out there now. Everyone went based on something someone else told them. Or battery scare tactic sites. You have to find people willing to take the time to do the tests and provide real world information. And more importantly... Do your own off forum investigations. Forums are a great place to find basic info but when it comes down to the nitty gritty details... Always source your own information.

Vape on.

-crit

 

[Lacquer head]

Lol was up all night studying for an exam yes it's 2500 mAh

 

[Lacquer head]

I should have left my current battery out of this convo but you guys did give me alot of useful information. But what's a good batt for super sub ohm builds? No one find a new trusty one they just love?

 

[aeckman]

LG HE2 is one of my favorite batteries

 

[tj99959]

I wont lie... It took a long time to find just the right battery from the right retailer. I even called several places to talk directly with them about the batteries.

Eciggity is the only one i have found selling true 2500mah 35amp continuous 60 amp pulse batteries. With the proper certificates and anti counterfeit. (that i could find).

Give it a few more years... Once all this legal hoopla is over regarding vaping, batteries will be produced specifically for us and this will all be a distant memory we laugh over.

FOR A FACT, there is no such thing as a 35a 18650 battery! And, forget about 60a pulse! That isn't even possible with a 26650 battery.

I should have left my current battery out of this convo but you guys did give me alot of useful information. But what's a good batt for super sub ohm builds? No one find a new trusty one they just love?

VTC 3s & 4s are 30a batteries, just with less mAh than the VTC5.
The 2100mAh Pretty purple efest is a VTC4, the 2500mAh is a HE2

LG HE2 and Samsung 25r are both great batteries, but they both are 20 amp.