Efest 18650 (purple) Questions

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?  

I am interested in setting up an Arduino charger for my vape batteries. But the charger I want to use, an Adafruit bq24074 solar charger, does not support nominal 3.6V batteries. And basically all the Mooch approved batteries are nominal 3.6V. So, which 3.7V batteries are considered fairly robust for high current, vaping purposes?  

I'm charging a purple EFEST IMR battery in an XTAR LI-ION battery charger and I wanted to make sure Efest IMR purple is actually covered under LI-ION charging.. I can upload pictures in a second but I've been charging the battery for about an hour and this is my first electrical mod so I am trying to make sure, thank you. It says it is for rechargeable Li-ion batteries only but so far the battery is not hot or any problems  

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.  

Hi I just got a sigelei 100 watt plus and this is my first time using freshly charged batteries in it... it's still reading at being 100% in the sigelei. ive been using it for maybe 3 hours total . Is this normal .. because its starting to make me wonder if something is wrong. Its been at 40 to 50 watts this whole time. I didnt charge the batteries at first when i got them because my charger did not arrive yet...then once it did come i charged them and now its continuing to stay at 100%  

So I have (2) 3100mAh Efest batteries rated @ 20A and (1) 2500mAh Efest batterie rated @ 35A. I'm experiencing a pretty annoying problem with all 3 of them and that is they aren't lasting nearly as long as I feel they should be. I can EASILY vape through a battery in less than one hour while heavy vaping. I'm aware that I am sub-ohming and that requires more power from the battery but these are just going way too fast and something isn't right. I have a BEC Pro mod that takes a single 18650 battery and I'm vaping an Aspire Atlantis tank @ 35 watts with the .5 ohm coil installed. I charge each battery fully with a Nitecore i2 before using them and it'll say 4.2V on my mod & on my Smart BEC app it will say 100% as I take my first few puffs but then starts draining at a ridiculous rate until they are dead. I am not aware what the mod efficiency is on my BEC Pro or if there might be something not working properly within my device. Can someone please help me find what's wrong with these? Maybe some of you have eperienced this problem with Efest batteries in the past? Thanks in advance!

Edit: These are genuine Efest batteries as I bought them straight from the manufacture on Ebay.  

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!  

im going to buy a vaporesso luxe s and put a uwell valyrian 2 tank with either a triple or quad coil in and im not sure what batteries are good also which 4 port charger should i get? thanks in advance  

I've been charging my 18650 batteries on a Nitecore charger but having to unscrew my Smok XPRO m65 is a real pain so thought I may as well make use of the USB port and charge the battery while it's still in the mod.
But I've been hearing a few horror stories of other mods such as the clouper, apparently its not safe to charger using the USB port

I'd really appreciate it if anyone can help inform me if I'd be able to use my phone charging adaptor with my mod.

The input and output specs of my phone charger and mod input are in the attached pics.

Cheers everyone  

Seems efest batteries are not all that bad...

Best batteries for cloud chasers/high current: Sony VTC4 vs Efest 38A – Liion Wholesale Batteries