18650 Batteries

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?  

Okay so I did look this up and it appears that other people have mentioned this specifically with sigelei mods but I didn't see any that were more recent. I look at my mod to see what my batteries charge looks like to see if I need to go ahead and change batteries and I swear to God the thing starts jumping around as though the batteries are charging themselves and then going back to the 40%. Apparently that's a problem that the mods have and isn't something to be concerned about but it freaked me the heck out. They're doing just fine now that they're in their external charger thingy but I just want to make sure that that's not a sign of something going wrong with the batteries that it's just my mod being weird I've checked the connections and everything to make sure it was clean and that the batteries were fine and not dented or unwrapped and everything looks good. I just need some assurance that the batteries were not like failing or that a regulated mod would shut itself off if batteries were jumping around like crazy in reality if that's even possible
For clarification it was doing this when I was not firing it  

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!  

Hi, so I have several different brands of 18650 batteries but I'm getting ready to pick up the new Geekvape Aegis X, I wanted to get some new batteries. I have been reading up on it but I'm so confused, I don't vape very high wattage It's always under 50 watt, 45 usually being the most, so what would be the best batteries for long activity? Any input would really help. Thanks  

anyone know of one that exists? I want a box mod that can go up to 100-150 watts but want one that has internal batteries that I can charge via usb cable or ac adapter

I was looking at the segelei and ipv3/4 but I don't want to change batteries

the reason is I travel sometimes for my job up to 2-3 hours and I don't want the hassle or danger of changing batteries while driving
I want something I can vape on for a couple hours without worrying about replacing the batteries

I sub ohm at .2 ohms and bought the arctic tank .2 ohm coils specifically for this reason

thank you

p.s. I found this: MEGATRON 260 watts 5400mAh box mod uses ac adapter to charge but looks really weird and no one has tried it yet so I'm a tad skeptical  

I wanna buy the sigelei oni edition 150watt but iv not used any box mods that require batteries yet, my jellyfish and innovkin has internal batteries, can you gents recommend 2 good batts and charger. and is there any tips i might need to know.  

I have decided to keep one of my mods with the battery removed in a spare purse. I had the bright idea that I'd keep 2 batteries charged in a plastic case. This way if I switch purses, I do not have to worry about forgetting my mod and, if I do, I will have a spare one.


So --- approximately how long will the batteries (21700) stay charged without being used?  

So I just received a 100w seigei box mod and I fully charged my 2 18650 batterys that worked fine in my mech mod. When I put them both in my sigelei the battery percentage only tops out at around 50% charged?!!! Like what they are for sure both fully charged. Anyone know what the problem is?  

Hey all,

I've been using the Intellicharger I2 for a while, and recently I've noticed it's taking a long time to charge batteries. Keep in mind I realize that the Amp output is distributed across two batteries, etc, but I feel as though its time for an upgrade.

I regularly use Samsung25R's and occasionally VTC5's, (18650) and I was wondering what your opinions are on the best charger I can buy. The criteria I'm looking for ideally a

External transformer
Fast charging time
LCD screen
Ample venting
Autostop cuttoff when batteries finished

Thank you in advance!  

Hi Guys,

So I originally had a nitecore i8 charger that I used to charge 8 x 18650 batteries. After using it for a few days I started noticing that it made a weird ticking noise and got VERY hot on the bottom. Needless to say this made me quite uncomfortable.

So I exchanged it for a Xtar VC8. So far it’s been amazing. No ticking or weird noises and it doesn’t get hot. It also comes with a nice screen that shows you some details about your batteries. This is what leads me to my question.

I noticed when charging my batteries most of them show as roughly 3.7v but others show as 4.1v. Also the longer they charge the higher the number goes. Is this normal? Sorry I’m a total idiot when it comes to batteries and voltages etc. If anyone could clue me in i would be very great full!

Thanks