Test/review of UltraFire CN18650 9800mAh (Yellow)

UltraFire CN18650 9800mAh (Yellow)







Official specifications:

  • Voltage: 3.7V

  • Capacity: 9800mAh

  • Lifetime: 1000 cycles



A cheap battery with serious overstated capacity.











The CELLS can deliver about 1A, at 2A they start to loose voltage and at 5A they cannot really do anything.
The two cells matches fairly well, this probably means the battery is manufactured this way, i.e. it is not a old rewrapped cell.





















Conclusion

The cell is as expected, this means low capacity and not able to deliver much current.
The protection specified on the wrapper is not included, this is a bare cell.



Notes and links

How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Graphical comparison to 18650 and other batteries
Table with all tested LiIon batteries

“It is Greeeeeen” :person_facepalming:
Priceless :smiley:

Thx Hkj for infomative and Quality reviews!

Wow ! That’s just blatant misrepresentation. So how do they come up with their numbers ? Do they just put a bunch of numbers in a big tumbler and spin it , then pick one like bingo ?

Nice. Thanks for the review HKJ. :beer:

Great! Very useful for education purposes...

Is someone really buying such garbage?

Thanks for the review!

Tak!!

Unfortunately the people who do not know any better,ones NOT on BLF/CPF/The Flashlight forum ect.

Before I found BLF/CPF I started off 7 years ago w/ these kind of batteries when buying flashlights on T mart whose Lumen/Lux numbers were phony on their flashlights also! :laughing:

They're :facepalm: actually buying them in small “bulk” :-D quantities. Check these sales with feedback:

Daweikala INR18650-25R ROFLMAO!

^:)

wow even the reviews are not so bad haha

“Ha! Your stoopit cells are only 3000mAH! Mine are 9800mAH!!”

Tries 9800mAh cell in Emisar D4

Blows up

Now be nice!

It's clearly indicated in writing on the wrap: "DO NOT knock the battery".

slmjim

Good info. Thanks! :+1:

I really want to put these into my spring-bypassed Q8, in the garden, flick it onto turbo, and see what happens.

But then I like my Q8 so I don’t think I should.

Nothing wrong, really. Its unlikely they'll burst, not even if short-circuited. Both their energy and power density are quite low, energy or power cells from a decade ago or more made by the main manufacturers are far superior. Go figure.

You'd have more luck in a shooting range. ;-)