21700 Mods

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?  

Hello—am I calculating correctly? I now have a Jackaroo mod that takes a 21700 so I ordered the Molicel 21700 P42A. Someone on the forum helped me out once before and here is the calculation I used. I figured in at 30 watts –I am usually between 23 and 30 watts

30 watts/3.2 battery cut-off voltage/.9 - 90% efficiency = 10.4 Amps
(30)(3.2)(.9) ---max wattage to be used is 86.4

What about my 2 battery mod --is that calculation for each battery. For example, I ordered a Geekvape Aegis X that takes 2 batteries so If I had that same calculation would my wattage be 86.4 per battery?  

Hi

I'm using Samsung 21700 T40 batteries.
Trying to figure out..
Is it best to charge a battery when it's discharged or nearly discharged?

I like to keep things simple with a routine of charging once a day, but then the battery will be set to charge even when there's 15-30% power left.

Is that bad for the battery?  

I've been using only twin-18650 mods for some time, and before the shipping ban came into effect, I bought a backup of my most-used mod (a Geekvape Aegis X), but since the 100W single 21700 / 18650 Voopoo Drag X Plus was only $35, I also picked up one of them as another backup.

I vape exclusively on RDA's, typically with a 3mm dual coil twisted build with 24 or 26 gauge Kanthal or nichrome-80. 5 or 6 wraps with 24 gauge, 6-8 wraps with 26 gauge. I typically vape these between 90 and 110 watts.

I did not expect to get a 'true' 90-100 watts out of the Drag X, so I set a target of around 60 watts. I mounted a 3mm dual coil twisted 28 gauge build with 6 wraps, which on my Aegis X vapes great at 60 watts, and very good at 50 watts. It measures at 0.45 ohms.

But on the Drag at 60 watts, it only vapes at what feels like 30 watts on my Aegis. Setting it higher makes no difference either, it seems to 'top out' at ~30 watts regardless of the setting. 60 watts @ 0.45 ohms is only around 11 amps, so I doubt I'm hitting an amperage limit.

I am using 18650 batteries (VTC5A), and it is about time to replace them, as I am only getting around 70% the battery life as I did when new. I will be picking up some 21700 batteries at the same time, which hopefully help with things on the Voopoo.

Does anybody have any good experiences with ~60 watt builds on a Drag X Plus?  

I have been out of the game for a while and have just been using old mods/RTA's.

I am looking for suggestions on some of the best up to date mods as well as some of the best RTA that go with the mods.

Here is a little info...I usually vape at around 30-35 watts...

For the mod, I am looking for one that takes a single 1865 battery, is small in size, and is lightweight.

For the RTA, I am looking for a single coil DL tank....one that can hold at least 5ml of juice, can go with the mod suggested, and provides great flavor.

Can you guys please give me some suggestions? Thanks a lot  

I ordered a SXmini SL class with the sx485j chip and it recommends a 35a battery. I only use .15ohm coils at 60 watts so I should be good with a samsung 18650-35E right? Going to buy 21700 batteries once these start losing their charge because I just got them recently..  

Hi Albert I have a few different yihi chips one is an auto squonk and the other is the topside dual carbon I really like the temperature control of both of them and would like to find a single coil DNA to try out because I also like the power curves and everything is well I'm just having a hard time finding a single battery DNA squonk that's under $100. Any help would greatly be appreciated  

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.  

I'm looking for internal battery box mods that has wattage option higher than 50 Watts. So far I've found Smok Xpro M80 Plus, which is an internal battery box mod with 80 Watts power at a great price. ($55) Is there any other internal battery box mods? MVP and Istick serieses are of course excluded here.  

So, I recently purchased the Gaur-21 with the Valyrian II Pro, and the mod is 21700 and 18650 compatible. I was curious as to the benefits of the 21700 batteries, because I’ve only used 18650s.