UltraFire BRC18650 3000mAh (Red-silver) 2015
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Official specifications:
%202015/UltraFire%20BRC18650%203000mAh%20(Red-silver)%202015-info.png)
A cheap battery with very low capacity. The above list of capacity is a bit misleading, see below.
%202015/UltraFire%20BRC18650%203000mAh%20(Red-silver)%202015-info1.png)
Here I have the capacity for each cell, one has 1600mAh, the other 350mAh and neither can deliver much current.
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Very bad curves, different capacity for the two cells and very sensitive to load.
%202015/UltraFire%20BRC18650%203000mAh%20(Red-silver)%202015-CapacityTimeHours.png)
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%202015/UltraFire%20BRC18650%203000mAh%20(Red-silver)%202015-Energy.png)
%202015/UltraFire%20BRC18650%203000mAh%20(Red-silver)%202015-PowerLoadTime.png)
They could only handle a 10 watt load for less than a minute.
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%202015/UltraFire%20BRC18650%203000mAh%20(Red-silver)%202015-Charge.png)
When charging notice the huge voltage drop, the best cell drops 0.1 volt, the other 0.2 volt when charging stops.
Conclusion
This is bad cells, stay away. Check the link below for more information about it.
Notes and links
I disassembled the battery to see whats inside
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
Compare to 18650 and other batteries
Official specifications:
- Material: Li-ion Battery
- Suitable for Flashlight Torch
- Capacity: 3000mAh
- Voltage: 3.7V
A cheap battery with very low capacity. The above list of capacity is a bit misleading, see below.
Here I have the capacity for each cell, one has 1600mAh, the other 350mAh and neither can deliver much current.
Very bad curves, different capacity for the two cells and very sensitive to load.
They could only handle a 10 watt load for less than a minute.
When charging notice the huge voltage drop, the best cell drops 0.1 volt, the other 0.2 volt when charging stops.
Conclusion
This is bad cells, stay away. Check the link below for more information about it.
Notes and links
I disassembled the battery to see whats inside
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
Compare to 18650 and other batteries
—
My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/
“This is bad cells”? How about, “These are, bad cells” :bigsmile:
Great review BTW, thank you. Before I knew any better, I bought 4 of these with exactly the same results you posted above. Their crap.
Can’t believe you wasted your time on this
but it should probably be pinned as #1 thread in 18650 batteries section for all beginners that are convinced they have 4800mAh cells… 
Foot in your mouth.
“Their crap”
How about they are crap?
How would (new) people know they are bad cell without a test?
The disassembly thread would probably be better to pin, it shows why they are crap.
My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/
Thanks for testing HKJ! Have you implemented the “skull” verdict in the battery reviews yet?
Kind regards
In that case you would have to destroy/disassemble one or some quality cells so you could make comparison and say something like:
“this is crap cell, look what’s inside …. and this is good quality cell, notice how it looks inside…”
all followed by pictures that beginners could compare for obvious differences…
On other hand this graph says it all
Not really, when a cell is corroded and has marks from welding of battery pack strips, you do not really need more.
I will probably disassemble some good cells at a later date.
My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/
Funny that the 3000mAh wrapper is still around since you can get that and/or more quality as well as capacity from reputable brands
49% of the reviews on this Amazon site this gave the batteries a 5 star rating. I wonder how many of them are shills? Or is it “if it lights then the batteries are great” mentality?
Frighteningly enough
Most people are just not aware that they have been blatantly misled and lied to. Pretty much like 99% of everything that we buy from there. They can do anything they want, they are exempt from us law. And boy oh boy, do they ever run with it. :Sp
NOTICE: To everyone who reads this review and
has other learned knowledge about the *****Fire
battery crap and lies. Please pass your info on to
people that have NO knowledge of the B.S. regarding
the *****Fire batteries brands. In other words , this
means-“Stop the robbery and theft !” . Every chance
you get , Spread the word !!
Both are technical guys (a DBA and a network engineer) so luckily they were open to articles and reasoning. Took less than 5 minutes for them to see the light (pun intended
My 2 good deeds this year.
I already advised peoples stay away from any Ultrafire batteries many years ago. They are extremely dangerous!
Unfortunately I lost the link for how these batteries exploded & this guy went to ER eventually!
I found the link: http://www.candlepowerforums.com/vb/showthread.php?280909-Ultrafire-1865...
If anything can go wrong, it will.
Matter will be damaged in direct proportion to its value.
I sure hope someone at Tesla sees this. They can cut-down on the number of cells they need by 1/3. I bet it also sags less and has a longer cycle life. I see on one site that 9
suckerbuyers have already jumped on it.Can someone explain to me how they do this to people they do not even know? What kind of people are these? Its quite disturbing.
There is a very small decimal point ..... you just have to look very very closely
980.0 mAh
98.00 mAh
9.800 mAh
.9800 mAh
?????
υμεις εστε το φως του κοσμου ου δυναται πολις κρυβηναι επανω ορους κειμενη
Dc-fix diffuser film >… http://budgetlightforum.com/node/42208
Awesome review! I’m happy I never wasted any money on these cells because I spent a lot of time on this forum before spending any money on 18650’s.
Thanks for the review. Does anyone know what BRC stands for?
Three Tanna leaves to give him life, nine to give him movement. But what if he eats the whole bag?
Scott
Glad I could help.
http://www.thebrc.org/
djozz quotes, "it came with chinese lettering that is chinese to me".
"My man mousehole needs one too"
old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".
Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.
Wow. Perhaps the Energizer Bunny is a member.
If anything can go wrong, it will.
Matter will be damaged in direct proportion to its value.
If anything can go wrong, it will.
Matter will be damaged in direct proportion to its value.
BRC stands for anything you’d like it to mean really, since the entire wrapper is nonsensical: it does not really pertain to the battery inside at all, its just a wrapper purchased in mass quantities and shrinkwrapped over old cells or phoney cells with a capacitor in them in some cases.
I like to say it stands for “Brick” though: not only are they really bad capacity and cant deliver much current, but they also fail quickly and you get really few recharges before the dropoff in capacity renders them useless…when you buy these they’ll be bricks soon enough.
Bad, Rubbish & Crappy?
USB power meter/tester thread
Buy, Regret, Cry?
Lol cells
Bad as in can explode if you use it?
Never ever forget and forgive. Niwal**er new kid on the block trying to act tough.
http://budgetlightforum.com/node/24847
Do not support this brand.
DINODIRECT – SCAM COMPANY. DO NOT BUY
http://budgetlightforum.com/node/11324?page=2#comment-254983
Thanks HKJ for the review!
I have look at a LOT of your reviews , and they are very useful & informative
Tossed it where?? and when??
It takes a while — weeks or months — before crystals grow large enough that there’s a risk they’ll puncture the internal membrane.
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Want a long academic piece on the details of disassembly and testing of components of li-ion cells?
Here’s one: http://drum.lib.umd.edu/bitstream/1903/12381/1/Williard_umd_0117N_12841.pdf
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