Which Battery

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  

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..  

Hey guyz,i am planning to buy a mtl setup and was wondering how to decide on good battery as i cant get a good explanation to the terms being used.i plan to vape around 15-25 watt and am looking for a 18650 battery that can last me well.i also saw people saying that sometimes its better to go for more amps than mah.So i was hoping someone can help me understamd as well as decide in some batteries  

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.  

Hello, I just bought an Ehpro Nzonic V3 and tested it out using a Kanger Subtank Mini with a Samsung INR18650-25R battery. After a few puffs I took it apart and noticed there was a tiny needle sized impression on the positive and negative contacts of the battery. I looked at the mods battery contacts and they do seem to be pointed. Should this worry me? I took some pics but im posting from my phone and not sure how to get them on ECF? Do I need to upload them somewhere else then post the link?

Thanks in advance!



 

I know the 25r is a 20amp battery use them all the time. I got a pair last year that were 25c. But I cant find info on the amp rating. Anybody know this battery? @Mooch ?  

I have the Dreamer Mod and a Samsung battery 30t 35 A and coil 0,17 ohm, when I use it, the atomizer gets very hot, then after that the battery gets heated up a little, and I'm new to the mechanical mod

Even my agies x batteries get a little hot when i use it

is that normal
please help  

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 bought a new vape cartridge but it won’t work with the battery I have. The battery is charged and just flashes blue when it’s screwed in and pressed.

Do I need to buy a new battery?
Any info would be awesome. You can see the battery and cartridge in the photos.  

This is the 521 mini V2 that will meter or fire a coil. There's a 3-way switch, with off in the middle.
I was sure that it was turned off, but in handling the kit bag, the switch must have been pushed and turned on. Even with no atty on the tester, it completely drained an 18650 battery.

This was confirmed on a multi-meter. 0 volts.
I know that this battery is done, but it's interesting that my charger completely ignored it.

Based on this, I'd recommend not storing the tester with a battery in it. It probably already says that in the instructions. Maybe there's one person out there that didn't know this already, so here it is.