18650 Battery Review-Vape & Flashlight communities need some real battery tests.

18650 battery test-reviews is what I will start doing from the next week.

It will ne very interesting to see how 18650 batteries behave under different working conditions.

These bench tests and reviews will include:

• Visual discharge graph (curve) at various continuous and pulse current loads.

• Battery Amp limit.
• Real capacity (cell will be discharged from full charge to the lowest voltage discharge cutoff limit).
• Working temperatures during discharge in real time.
• Original Battery Specs - datasheet from manufacturers.

You will be able to see the actual performance of the battery cell (in various situations), that you might be using already or that you would like to buy somewhere online but not sure about performance.

Why am I doing this?

Answer: Safety!

It is getting out of control.

Flashlight community is pretty much safe, because 99.9% of today's LED flashlights are running on 18650 Protected batteries.

One, and only independent battery tester is HKJ. You can trust his extensive Li-ion testing 100%.

The lithium-ion safety risk is the highest in vape (electronic cigarette) community that is growing very fast.

Lack of proper li-ion 26650,18650 battery knowledge is the biggest enemy for average vape (ecig) end user (vaper).

To make this already dangerous situation for vaping users even more risky we can see more, and more companies (usually Chinese) releasing unprotected vape 18650, and 26650 batteries with exaggerated Amp limit rating numbers. Sometimes 500% over actual battery Amp rating.

It seems that box mod e-cig batteries are becoming good source of income for individuals who represent themselves as "independent" battery testers.

I will talk more about these "unbiased" battery tests too, and what tricks they use to make battery performance bad, or good.

Just some of the 18650 batteries that will be tested with very accurate (lab calibrated) computer battery analyzer:

LG HG2 

LG HE2 and HE4

LG HD2 and HD2C

LG HB6 

Samsung 30Q , 25R, 20R

Sony VTC4

Sony VTC5, VTC5A

Sony VTC6

Panasonic NCR18650GA, NCR18650B, NCR18650PF, UR18650NSX

Some very good, and some really really bad, and dangerous rewraps will be tested as well.

Many more batteries will be tested and posted on this blog. This is just a beginning...

Panasonic NCR18650B 3400mah Amp Limit & 18650 Battery Datasheet

What is Panasonic NCR18650B amp limit, and where I can see original manufacturer datasheet to confirm exact maximum current draw?

Many people from vape, and flashlight community ask this very same question, searching for one simple (and correct) answer.

Continue reading, and you will finally see 100% correct data for NCR18650B 3400mAh Panasonic 18650 Li-ion battery:

The maximum amp limit current draw is 2 C. It is called 18650 battery C rating.  I will explain C ratings in details later.

Right now in plain English, all you need to know when you see "C", and a number before "C" :

Multiply the number printed just before letter C by battery capacity.

Where can I find the typical rated capacity for NCR18650B?

Right here: manufacturer specifications | datasheet

If you read carefully this PDF document from Panasonic, you will see that typical capacity is  3350mAh, and 2 C (bottom right - battery discharge characteristics graph).

2 x 3350 = 6700mA

In Amps (Ampere) :  6.7 Amp  - much easier number to read.

The maximum NCR18650B discharge amp limit is 6.7 Amps under continuous current load.

There are many high-quality 18650 batteries on the market right now.
Panasonic is the leader in manufacturing lithium-ion rechargeable cells with unbelievably good quality control.