"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."
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.
Very interesting video, showing the powder. By the title you would think that the person believes someone faked the Ultrafire brand, at least I know some truly believe that sort of thing.
the sooner we educate the main consumers of these batteries the sooner the garbage will be gone from the market.
i often though of a few ebay buying accounts to buy these suspect batteries,test them,and neg/ding stars of the crap sellers.
Amazon members can leave reviews of this junk whether they have bought it from Amazon or not. Point out that the best lithium ion battery manufacturer in the world, Panasonic, can only produce 18650 batteries with a maximum capacity of 3200 to 3400 mAh. Anything with greater claimed capacity is a lie and the batteries are very probably complete junk.