Is This 18650 Battery Safe To Use?

So I just bought a kit, it doesn't come with batteries -- which I wasn't told (was led to believe it was charged through the USB port according to vape store employee). So I ordered x4 Nitecore-NL1834 18650 3400mAh 3.7 Protected Lithium Ion (Li-ion) batteries and now the door won't close. I read an old article saying that Protected 18650 can be bigger. If there's a possibility of buying batteries that cost $18 a pop shouldn't they let you know there's a chance that it won't be the right size?
Is there a trick to getting the battery lid to close or do I need to now buy unprotected 18650 batteries and hopefully get my money back on the protected batteries I bought?  

Hey guys,

So today I took my batteries out of my external nitecore charger and noticed some small chips in the wrapping. Please see the photo above.

Are these batteries still safe to use? Or should they be replaced?  

I bought my Sigelei 100w Plus a few days back and ordered 2 Sony VTC4's on my same order (I'm confident they're legitimate, I've bought some before) to be able to marry them together and use them with my Sigelei. Upon receiving the batteries, I labelled one A, and one B and put them into my charger at the same time (charger was off, put both in and turned it on), one battery is slightly more charged than the other (it's 2/3 bars, while the other is still 1/3). I'm a bit worried about using married batteries, I understand rotating A and B in my Sigelei and charger but will they be the same charge when they're done? They're new batteries and they both went on at the same time yet one of them is charging a little bit faster.

When both of the batteries are fully charged, will they be safe to use and cycle accordingly? I heard about if one battery has even a tiny bit less, the batteries will take an uneven load and it will make it risky. How do I ensure that these batteries remain married?  

Just bought a brand new pair IMR 18650 2500mah batteries, when they start getting low and you're getting late fee from batteries did you take them out and charge them or let them drain completely, the mod shows a little juice left in them but I'm getting a very light vape.  

Hi everyone,
Hope your all having a great weekend! Hopefully someone can help me figure out any good canadian or American reputable vendors for 18650 batteries for my arrow sense mod. Out of all the vendors listed in the battery thread, only one had the batteries I wanted, but it was in the US and would cost over $50 for shipping. Hoping to find shipping for $20-30 canadian instead. I am particularly interested in the batteries on the forums listed as tested by mooch in a stickier post. Or Sony battery with 2500 mah , I like to vape with two 18650 batteries at 60-80 watts.  

Hi folks,

I recently purchases a Sigelei 100w box, and got the purple Efest batteries that the vendor recommended.
I'm using this with a KangerTech Subtank Mini.
It's currently set to 42W - 5.0V, and the resistance it shows me is 0.6 ohms.

I have some questions about my setup.

- I read some reports that these batteries have different specs than what is reported, and it could potentially be dangerous. What should I do to be safe? Is there a max W/V that I can set it to?
- I have a TrustFire TR-001 charger (output: 4.2V / 500Ma). Can I charge those batteries with that? I read the charger supports 18650 batteries, but I'd rather be sure...
- If the charger is no good, any recommendations of what I should be using?

Thanks a lot!  

Hello All,

Does anyone know which 18650 battery would last the longest when vaping at 13 watts? I have listed some below but any not listed recommendations are welcome as well.
(PS please don't respond with battery safety information or suggestions for me to look at mooch ratings)
Also, does anyone know if the vendors in the last 3 below links are reliable?

Thanks!

Sanyo NCR18650GA 3500mAh 10A

AW Protected 18650 3400 mAh

Samsung 35E 18650 3500mAh 8A Battery - INR18650-35E

Sony VC7 18650 Unprotected Li-ion Battery

18650 Battery 3500mAh Protected Li-ion 3.7V Rechargeable Orbtronic 10A Dual Protection (Panasonic-Sanyo inside) ORB3500P For High Performance Flashlights  

Herro!

So, I always used to use mech mods from about 6 months to a year and a half into vaping. For the last 6 months I've been on regulated (iStick 30W and 50W).

When I switched to regulated I retired my mech mods and 18650 batteries to the closet. I made sure they were all around 50% charged because I heard from someone on here that was the best condition to leave them.

Well recently I've had this curiosity to try them again, only for at home use, mainly for the novelty of it.

So, my question is, what will I have to do to revive these batteries? Are they safe to just throw back on the charger and use when fully charged? Or are they not safe to use?

Batteries: 4 Sony VTC 4's (all were acquired about a month before I stopped using mechs), 2 XTAR (Sony) VTC 4's (about a year old now) , 2 MXJO 2500mah (20A LG's) (about a year old now).

Let me know! Thank you!

Vape Happy,
Cullin Kin  

Hi guys, just had a quick question. I'm not sure if there is any problem here but I recently bought some mxjo 18650 batteries, they work great. but my issue is that on the bottom of one of the batteries there's a small indention. The mark look likes it's from the pin on my mods end cap. Should I be worried about this or is this normal?  

Hey Guys,

I have been wanting to use a mech mod for quite some time now. But I didn’t want to rush into things, given that they can be dangerous if not used properly.

To prepare I have studied ohm’s law and have a pretty decent grasp on it. And have a calculator app on my phone.

I have checked out Mooch’s battery recommendations and have a good idea of what batteries to use and which to avoid.

I still do have a few questions I was hoping an experienced Mech user could help me answer:

- What would be the “sweet spot” as far as resistance and safety go for a dual coil set up? Obviously I want to go as low as possible and have a hard hitting vape. But I also want to be safe. I plan to use a dual 18650 Parallel mod (The Clutch X18). I would be most likely be using Sony Murata batteries as I cant find any Samsungs where i live. I’m thinking somewhere around 0.17-0.2? Or would it be safe to go lower than that? I will of course test my build on an ohm reader and regulated mod before throwing it on the mech to be safe.

- Are there any other general safety tips? Ive heard that you want to screw the Atty down all the way first, before inserting the batteries. And then insert the batteries. And when removing the batteries i heard you want to slightly unscrew the atty first, and then carefully remove the batteries? Can anyone please confirm if this is correct.

- Is its safe to chain vape on a dual 18650 parallel mod? When I say chain vape I mean like maybe taking 5-6 big hits back to back. Then waiting 3-5 minutes, dripping some juice and then doing another 5-6 hits.

- Is there anything I should be monitoring while I’m vaping? Like the heat of the batteries? From what I’ve read, the batteries drain quite fast on a mech. And after some experience you will just kind of know when they need charging because the vape experience changes. Is there anything I’m missing? Or something i should be looking out for?

- I can only vape in my kitchen. And sometimes there might be a little bit of water on the counter from someone’s drink sweating, or drops after someone washed their hands etc. Is this a risk? I will of course do my best to keep all surfaces dry. I’m not talking about large amounts of water or submerging or getting the mod really wet. But just what one might find on a kitchen counter.

- Any other tips you could throw my way would be great!

Thanks in advance!