**awt Imr18650 2600mah Question**

Taking the advice of ECF members, I'm planning on buying Samsung INR18650 25R batteries for a 30w device (as opposed to my current Panasonic that has a 6ish max amp output). My local vendor has them, but two things are strange to me.
1.) Their price is actually a little cheaper than Fasttechs, usually products there are quite more expensive
2.) They are green, while FT and a couple other places i've googled has them as blue

This is the vendor site:
Baterija Samsung INR18650 25R 2500mAh - 18650 - Li-on, Ni-Mh baterije - Baterije i punjači E cigarete | E tekućine
This is how they look pretty much everywhere else:
$9.75 Authentic Samsung INR18650-25R 3.6V 2500mAh Rechargeable Li-Ion Batteries (2-Pack) - 35A peak discharge / 22A continuous discharge at FastTech - Worldwide Free Shipping

So are the batteries from the first site fake or what's the deal with that?
 

Efest IMR 18650 LiMn 2800mAh Battery - Flat Top - 35 Amp

They claim to be 35a continuous & 80 pulse. . .
Has anyone tried these?
if they really live up to the specs these will be the best batteries on the market now since no other battery can claim a 35a continuous rating. Not to mention 2800mah? Dang. Just note these are not the same batteries from before. The previous ones had a 35 amp pulse rating  

Hi
I'm usually vaping at just 14 watt (mouth to lung, nothing heavy).

Now I'm soon getting a new mod that takes 21700 batteries, so I'm searching for the best batteries without spending too much or too little.
(aiming for Samsung, LG or Sony, to be safe)

I see some batteries hold 5000 mah, like the Samsung 50E (cyan).
But it only has about 10 amp discharge rate.
So less than half than "regular" 4000 mah batteries for example.

Is 10 amp more than enough for vaping at just 14 watts, or should I find a more "high-drain" battery?
I want to be safe and avoid risks or heat.  

Ok, one of my 30A batteries went kaput, and now I'm left with one last Sony VTC4. It's time for me to get a new set of batteries for my dripper. I'd like to ask your opinions as to which to get...but here's some criteria.

First, Sony is ruled out. There are too many fakes out there, and even an honest vendor can get duped. Since I will use a 20A build on it, I want to make sure they're rated at what they say they are. So no Sony's, even though I know they're good batteries, I dont want to take the risk.

Second, IT has to be 30A or better CONTINUOUS. It has to be explicitly stated that it has a continuous discharge rate of 30A or higher. Pulse ratings do not count.

third, 2000 mAh or higher.


I am thinking of going with MXJO 2500 mAh 35a continuous... But I don't know their track record.

Another option is the Efest 35a 2800 mAh batteries.

Any other advice would be welcome. Sources to buy would be nice as well.

Thank you in advance.  

So, I know that the Sony VTC batteries were the like "Go-to" battery. But they are being faked a lot and are hard to come by some authentic ones.

So whats the next best option?

I have a few different batteries and I definitely can tell the difference in the quality of the hit, and the life of the battery.

I have a red IMR 2000 mAh 18650 and it hits the worst out of all of my batteries.

Then I have a blue samsung battery (Can't really read the writing) but I can see it says 25r on it. This one hits decent.

Then I have a green 2600 mAh battery. Its a beast. Hits like a champ and lasts long. I would like to find a similar battery to this one. Im guessing this is the Sony VTC 5.

I really want to find something that is just as good as the Green one.

Does anyone know where to find these or a similar battery that is 2600mAh 30 amp? If so, are there any deals going on online where I could get a good price? Id like to order some new batteries.

Thanks for the help all!


Edit. One more question. Anyone know the difference between the Amps on each of the batteries? Just from guessing id say the red is 20 amps, blue is 25, and the green is 30? Does that sound right?  

Is it ok for the battery if I keep charging it when it reaches half way or 2/3rds left? Or is it usually recommended to fully discharge and then charge it all the way. Device I'm using is an rdna 40.  

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  

A long time ago, talking to a friend who's an electronic engeneer, he advised me to do something and so far works beautifully. It's specially true of cellphones and integrated battery stuff, so you might as well do it to your iSticks and your Kindle as well.

When you receive a new device that has an integrated battery and charger, both have circuitry controlling the charge. The first week of use or so (in the case of the Kindle the first few weeks or months) do complete discharge (until it shuts down completely) and charge completely cycles. This calibrates the battery and the charger to make a more efficient use of the energy.

Just now I'm putting a new iStick 30 though its paces. First day lasted me about 6 hours. Second day almost 8. Yesterday a full 12 hours. Doesn't matter the voltage. Charge it completely and discharge it completely a few times. You'll see how performance increases dramatically.  

Now that I have gotten into unregulated mods I've been doing a lot of reading about batteries... well actually I had started reading before but now that I am actually using them I want to know more.

One thing I am a little puzzled about is that you should recharge a battery when it's about 2/3 discharged and you should never charge a battery that is completely discharged. My questions:

1. How do I know the level of discharge in my battery? - I don't own a multi meter
2. What do you do with a fully discharged battery? - just chuck it?  

i have a pair of 18650 batteries that discharge at different rates while vaping. is this safe or do i need to dispose of them?