Ultrafire 18650 4000mAh black/gold batteries, any reviews on them?

[Tacoboy]

There are a lot of Ultrafire 18650 4000mAh black/gold colored batteries for sale on eBay, going for a good price.

Photo Storage

Anyone reviewed these batteries?
Are they any different (better or worse) from the Ultrafire 18650 red/silver 18650 4000mAh?

[AlexGT]

IMHO they are the same fake crap as the red ones, there are no 4000mah 18650 in existence AFAIK

[xv-750]

On Ebay, you will often get fake re-wrapped rejects and not real ones.

see the test here:

http://lygte-info.dk/review/batteries2012/UltraFire%20BRC18650%204000%20mAh%20(Brown-Gold)%20UK.html

see the fake wrapper thread here:

The FAKE 18650 WRAPPER thread, post any finds HERE

Almost 2 years ago I posted about finding wrappers for 18650 Li-ion cells. In that post I presented listings on the internet for buying printed wrappers for popular brands that could be shrink wrapped over bare cells. Most of those links are now dead, or have been changed. Here is a link to my old original post Since then there have been many knew members that have joined BLF that may not know how some of the advertised brands that they see on Amazon or EBay or even some popular vendors come f…

[WarHawk-AVG]

You would be better getting some tested laptop pulls from some of the personal vendors here on BLF…those **fire batteries are bad news

You would get better batteries (lower mAh rating but KNOWN ratings not these trumped up ChimAh horse hockey claims) and probably cheaper to boot

[flydiver]

There are NO 4000mA 18650 batteries…. none.
To even claim it is a clear signal of the complete lack of integrity.

[Tacoboy]

I know these Ultrafire 18650 4000mAh (black/gold) have an over stated capacity.
But I can get them for $1.50 each and if they will at least do 2000mAh, then the price is very fair for the capacity.

So far with winning eBay bids, I’m getting 6 of these 18650/4000mAh for $9.98.

[WarHawk-AVG]

@Tacoboy

I know these Ultrafire 18650 4000mAh (black/gold) have an over stated capacity.
But I can get them for $1.50 each and if they will at least do 2000mAh, then the price is very fair for the capacity.

So far with winning eBay bids, I’m getting 6 of these 18650/4000mAh for $9.98.

18sixfifty sells much better laptop pulls ranging from 2200-2300 actual mAh for a buck a pop

For sale Sanyo blue tops 18650's SOLD

Ok so I’ve been ripping and shredding and testing and sorting. These are Sanyo blue tops from used laptops from our fellow member. You can see his add if you would prefer to buy from him directly. We are kinda working together on these. For now I’m only selling the ones that I consider to be like new. After I have gone through more of them I might offer some of the less than great ones for a bulk discount price. For now though it’s just the very best ones. Ask if you want me to solder a top on …

[FmC]

[WarHawk-AVG]

You da bomb. No YOU da bomb

Compliment in America
Argument in Afghanistan

[marcl]

@Tacoboy

I know these Ultrafire 18650 4000mAh (black/gold) have an over stated capacity.
But I can get them for $1.50 each and if they will at least do 2000mAh, then the price is very fair for the capacity.

So far with winning eBay bids, I’m getting 6 of these 18650/4000mAh for $9.98.

You would be getting ripped off at half the price. I have just bought 2 Panasonic PFs for that price. There maybe less cells but I get to keep my house.

[tryps]

Buying junk batteries is a point where cheapness reaches dangerous levels.
There is more than enough information out there that should keep everyone away from them, if you know better and still decide to buy junk, don’t blame it on anyone but yourself if something happens to you, your house, your family, whomever.

I wouldn’t risk setting my house on fire for 20$ of “savings”, same applies to junk power supplies and electronics.
Keep in mind that even if, say you’ll get lucky, and the wrap contains a recycled brand battery from a junk notebook batterypack and not the leftover fireworks from new years eve. They won’t deliver any reasoneble capacity at “high” power and will age in a hurry so they’d be dead in a couple of months.

A new brandname cell will last you a couple of years with an order of magnitude better performance. Therefore they’ll come a lot cheaper at the end.

Just my two cents, everybody may feel free to c&p if new threads pop up.

[dw911]

@Tacoboy

I know these Ultrafire 18650 4000mAh (black/gold) have an over stated capacity.
But I can get them for $1.50 each and if they will at least do 2000mAh, then the price is very fair for the capacity.

Makes sense, a top money saving tip

I got good one, get your next tyres from the local tire dump,they obviously won’t have full capacity, could have unseen damage, but that’s then easily hidden with a fancy label, but for what they cost they will probably still have maybe half their original capacity in them if you don’t mind taking a gamble to save a $

[Otanacious]

I think the general consensus here is to not get UltraFire™. Most if not all are UltraFake™ and will most likely result in a HouseFire™.

IIRC from past posts you live in the vicinity of Illumination Supply for a warehouse pickup (as do I), just get some cells there! $12 for two Samsung INR18650-25Rs or $10 for two ICR18650-26Fs is a very hard price to beat.

[marcl]

The reality is you can pick up a couple of quality Sanyo cells at Banggood for around $8 when on sale. If you use them like me and charge them once every couple of weeks they will last forever. Anyone who strips laptop packs will tell you this. Most use Sanyo cells and out of all the packs I have stripped you will find maybe 2 cells that are finished and the rest will still have around 75/80% capacity. Now when you think how badly abused laptop battery packs can be, always charging whilst sat on peoples beds and sofas over heating, it is amazing how good some of the cells are. Then you go back to Ultrafire and you just don’t know what is in them or how long they will last.

And of course a Sanyo will give a lot more amps than an Ultrafire.

Marc.

[pilotdog68]

The problem is that a lot of people think the only downside to fake batteries is “reduced capacity.”

That can be a dangerous attitude.

[marcl]

@pilotdog68

The problem is that a lot of people think the only downside to fake batteries is “reduced capacity.”

That can be a dangerous attitude.

I did say ‘I get to keep my house’

Marc.

[Tacoboy]

@WarHawk-AVG

@Tacoboy

I know these Ultrafire 18650 4000mAh (black/gold) have an over stated capacity.
But I can get them for $1.50 each and if they will at least do 2000mAh, then the price is very fair for the capacity.

So far with winning eBay bids, I’m getting 6 of these 18650/4000mAh for $9.98.

18sixfifty sells much better laptop pulls ranging from 2200-2300 actual mAh for a buck a pop

For sale Sanyo blue tops 18650's SOLD

I’m more in need of button tops.

[Tacoboy]

@Otanacious

I think the general consensus here is to not get UltraFire™. Most if not all are UltraFake™ and will most likely result in a HouseFire™.

IIRC from past posts you live in the vicinity of Illumination Supply for a warehouse pickup (as do I), just get some cells there! $12 for two Samsung INR18650-25Rs or $10 for two ICR18650-26Fs is a very hard price to beat.

They are flat tops and I’m looking to get button tops.

[pilotdog68]

@Tacoboy

@Otanacious

I think the general consensus here is to not get UltraFire™. Most if not all are UltraFake™ and will most likely result in a HouseFire™.

IIRC from past posts you live in the vicinity of Illumination Supply for a warehouse pickup (as do I), just get some cells there! $12 for two Samsung INR18650-25Rs or $10 for two ICR18650-26Fs is a very hard price to beat.

They are flat tops and I’m looking to get button tops.

Fairly certain they cell button tops as well

[scdaf]

And 18650 will solder a blob on the positive terminal if you ask nicely…