Have you seen this type of counterfeit 18650 battery before? UltraFire

http://www.cambridgeshire.gov.uk/environment/recycling/recyclingcentres/wastesaccepted.htm

Giving it to friends ? >)

Its not THAT dangerous, thousand of people use them daily.

Thank for that Comfychair will pop them by tomorrow (about 8 miles away)

Maybe even those that know these cells can't be real at 4000mAh 4800mAh 5800mAh, still hope for 3000mAh or something. Vent and protection circuit are like on different plane.

My very first light, 502B, came with these instead of the red wrapper 3000ma shown. I knew nothing and did not do my homework…

If your 18650s don’t weight 47-48 grams then you probably should toss them out. Thats the average weight of a legit 18650 cell, bet the ultraultrafires is like 20 grams

Latest type of CN fake, German Certification, TUV Thüringen 4800mAh

Even at 2C (9.6A) the voltage stay high, at 90% of the capacity the cell is at 3.3V

WRT Amazon destrying counterfeit inventory from their fulfillment centres it might get a bit interesting if they try to destroy Lion cells supplied by some fraudster or other.

Just saw these on amazon wonder if the are fake too

http://www.amazon.co.uk/SecurityIng%C2%AE-Rechargeable-Batteries-Flashlights-Headlamps/dp/B00CE5W3OU/ref=sr_1_10?ie=UTF8&qid=1389037440&sr=8-10&keywords=18650+battery

One review says:

"I have to say that these batteries drain quicker than my bathwater!!! They are ok maybe for absolute emergencies but not as your main battery rotation. My olight m21 has one and a half hours on max power with nitecore battery, however these only give ten minutes..... Enough said chaps."

Others are happy with their product.

:bigsmile:

You can see in the post below yours that now they do fake TUV Certifications for fake 4800mAh, so they may learn from this post and grind some lead into that powder to make sure they are 45g at least.

The Chinese can duplicate any criteria that you use to verify whether a cell is authentic or not, except capacity.

Let them put lead in the batteries…….Ive always only purchased quality cells so doesnt bother me one bit. Panny, Sanyo, MNKE, AW FTW

New video showing the Ultrafire business style, selling fake 18650.

3800mAh result in more or less 300mAh capacity.

Youtube video:

A crack team of heavily armed Chinese mercenaries needs to be dispatched to eliminate all those connected in the manufacture of crapfire cells.

We would be lucky to bruise them if we send chinese mercenaries with chinese weapons & bullets. Can we pay for something better?

Testimonial from another forum about an 3200mAh Ultrafire cell:

"At 1 amp, i can only get 100 mah before hitting 3.0v from 4.2v.. at 2 amps. faghetaboutit.."

Cut an UltraFire cell, which claimed it was protected. Trying to find a protection board inside the cell is kind of absurd anyway.

After finding out about fake eggs - the mind boggles!
and my first set of Ultrafire 3600mAh 18650’s from eBay were fake they are in fact 950mAh :frowning:

Since then I no longer trust any claims and try to find trusted sources for my batteries.

Fake Eggs Youtube!