Same store for me, I have contacted them and they'll just send me 4 new batteries (Procell) tested in France and able to deliver the 20A needed.
www.firehawkextinguishers.com
Posting this here, as I doubt there is much interest.
A public service announcement.
The newest type of fire extinguisher for lithium-ion battery fires, the AVD type has been available in the U.K. for some time now. Finally available in the USA. I just bought two of the smallest 500ml size, designed specifically for small devices, like laptops, cell phones, and BATTERY CHARGERS.
This US company has just started selling them.
General 1 — LiCELL
Like the original poster, I'm a bit baffled by all the battery terms and not sure which batteries are the best to use with my vaporizer (Xmax Ace). From what I've read, 18650 batteries aren't intended to be used individually at all but seem to be the standard battery with portable vaporizers.
My Ace was a box unit and came with a Samsung 26 JM battery included (2600 mAh with a 5.2 continuous discharge rating which seems low) but I've seen many websites sell the Ace without any battery included. I have no idea how much power the Ace uses but it tends to get hot over time and so does the battery.
Would it better to use the Samsung 25 R which is 2500 mAh? Its discharge rate is much higher at 20A and comes either as a flat top or a button top battery which supposedly protects it from overheating. Another interesting battery is the Sony/Murata 2600 mAh which comes in two versions: one with a continuous discharge rating of 20A and the other at 25A. Do higher discharge ratings automatically mean a safer battery? Can 2800 mAh or higher batteries be safely used with portable vaporizers or is better to stick with 2600 mAh as the upper range?
The Ace really heats up over time; especially when I take long sips or hit it hard and so does the battery (it seemed a bit too hot when I touched it the other day and I try to remove it between sessions). My main concern is battery safety and keeping the battery cool. Do higher discharge ratings mean that the battery can handle heat and quick bursts of energy better? I really have no idea how much power the Ace uses when taking a hit and don't know enough about battery chemistry to decide which battery types are the best for this unit.
I only charge the battery using the micro usb cable connected to the computer and the battery doesn't get hot but it takes over 2 hours to fully charge it. That's not a deal breaker for me and seems safer than using some plug in wall chargers but I might need to have a few more batteries on hand.
I'd appreciate any advice on batteries and safety that more knowledgeable members might have.
Thanks for your feedback!Hello welcome to FC! Hope you stick around, just to answer the basic question quickly for you, yes the Samsung 25R is a great all-around battery and will work fine I think in your X-Max! Having extra amps is no problem, there are some vapes however that require a lot of amps so you just never want to have too little is all...
Do higher discharging rates simply mean that the battery can handle more "stress" or short power bursts? If that's true, it seems like one should go for as high CDRs as possible but I also remember reading on some website that high power MODs for vaping juice (80-120 watts) which I know absolutely nothing about, should be paired with lower capacity batteries (under 2000 mAh). That seems illogical to me because I would assume that the higher the wattage, the more capacity would be needed... At any rate, it seems that this problem is rampant with 18650 batteries and that all major manufacturers (LG, Panasonic, Samsung, Sony) have had their batteries counterfeited.
Thanks for your feedback!
At the same time, I've read that there are a lot of counterfeit batteries out there and many of them have been rewrapped by unscrupulous vendors. I'm becoming a bit OCD about battery safety and am worried that the Samsung 26 JM that came with my Ace is counterfeit.
Section B (Manufacture Date code or serial number) of the above article describes how to check if you have a genuine battery or a counterfeit one and appears that the one my Ace came with is fake--the date code on mine is TJX5 which according to the article is impossible as the code number is completely wrong.
Has anyone else encountered fake 18650 batteries? If the above information on how to identify fakes is correct, it's really worrying that my Ace shipped with a counterfeit battery but maybe X-max unknowingly bought fake rewraps from another vendor?
Thx everyone! Some great information there but I'm still confused by all these different CDR ratings and Mooch's disclaimer: "using a battery at under its CDR does not mean it's safe." To my understanding, it seems like having a higher CDR rating would give one more of a "buffer" in case there's a sudden surge or pulse of energy but I guess Mooch just wants to emphasize that no battery is perfectly safe...Check “Mooch’s table”:
I might have to go for a desktop model or something like the Vapocane/Vaponic for peace of mind but I love the ability to set the exact temp and go up degree by degree with electronic vapes. 
It is safer. He just making the point that these batteries have a lot of power and if things do go wrong, it can get ugly.
You are correct.
Thx everyone! Some great information there but I'm still confused by all these different CDR ratings and Mooch's disclaimer: "using a battery at under its CDR does not mean it's safe." To my understanding, it seems like having a higher CDR rating would give one more of a "buffer" in case there's a sudden surge or pulse of energy but I guess Mooch just wants to emphasize that no battery is perfectly safe...
I checked the Ace's specifications in the user manual that came with it and it's written that the charging voltage/current is 5V/1A and that the working voltage is 3.3-4.2V but there's nothing written about the device's CDR or using batteries higher than 2600mAh. It's conduction so I guess it doesn't drain batteries as much as convection vapes do.
To my mind, it seems like using batteries with a CDR of 15 and above would be safer than the one I'm currently using (Samsung 26 JM with a 5.2 CDR) but please correct me if I'm wrong and if there's any reason I shouldn't use batteries that have a CDR of 25 or 30 and higher capacities over 2600mAh.
It's ridiculous that we have to worry about getting counterfeit batteries from vendors; I would hope that most double check the cell's authenticity before selling them to the end user... I think I'll have to use NKON which ships throughout the EU.
I came across some other websites that others might find useful:
Is it a fake 18650 battery? (Featuring the Samsung 25R)
Quickly knowing whether a battery is counterfeit is possible, here I'll show you how by taking a look at the Samsung 25R. How do you tell if a Samsung battery is fake? How do you tell if an 18650 battery is fake?batterybro.com
Cell Database
secondlifestorage.com
Following the advice of the "how to identify a fake battery" links, I noticed that the fonts on my Samsung battery appear lighter and don't seem as even as the original ones in the photo below. Another tell-tale sign is the final code (TFW4) of the legitimate battery. The final digit, in this case 4, indicates that it was manufactured in the 4th week of the month of August designated by W, whereas mine was TJX5 and I don't recall a month that has five weeks.
It really shouldn't have to be so hard to buy a battery without worrying about counterfeits and it definitely detracts from my sessions. The articles on how to identify fakes suggest using digital scales, measuring the size and diameter of the battery and even using a black light! Good grief!
Thanks for confirming that for me.
I once had a replacement battery in a mobile phone which really bulged and it completed freaked me out! It was so misshapen that the lid to my phone wouldn't close properly and I got rid of it promptly. The thought of a battery exploding in a portable vape is pretty scary! 
I'll have to look for that one. It really shouldn't be so hard to find reputable dealers that sell authentic batteries. Nkon has Molicel batteries which seem to be the only ones that were designed with vapes in mind but I really wonder if there so differerent from the ones from LG, Samsung, Sony and company.
Maybe they are less likely to be counterfeit than the others?
Thanks for confirming that for me.
I'll have to look for that one. It really shouldn't be so hard to find reputable dealers that sell authentic batteries. Nkon has Molicel batteries which seem to be the only ones that were designed with vapes in mind but I really wonder if there so differerent from the ones from LG, Samsung, Sony and company.
Thx for clearing that up! I probably shouldn't ask this question because I might scare myself even more but have you heard about cases of cannabis vaporizers blowing up, or is this just limited to e-juice vapes and mech Mods? It seems like they pack more power and more things could go wrong... Having said that, herbal vaporizers are tiny ovens too and can get pretty hot. I have no idea how likely they are to short circuit and if that would cause the battery to explode or not.
Thx for clearing that up! I probably shouldn't ask this question because I might scare myself even more but have you heard about cases of cannabis vaporizers blowing up, or is this just limited to e-juice vapes and mech Mods? It seems like they pack more power and more things could go wrong... Having said that, herbal vaporizers are tiny ovens too and can get pretty hot. I have no idea how likely they are to short circuit and if that would cause the battery to explode or not.
An 18650 in your pocket shorted by you keys could be a bad thing.
Thx for clearing that up--I really needed to hear that!
It seems that buying name brand batteries from a reputable dealer and treating them with care (proper charging, not dropping them on the table and keeping them in battery cases) are the best ways to use them safely. Yeah, that's a good point! Those plastic battery cases are worth having.
