New ultrafire 18650 2600mah (protected)

[hazna]

Just came across it under new products for dx. I know a lot of people are dubious about ultrafire/trustfire batteries, but they ARE a lot cheaper.

Comparable to other 2600mah batteries? Will be wait for the reviews

I won't post the link, incase it gets deleted but dx sku: 26247

 

[hazna]

whoops, just realised theres already a review... that was quick

http://light-reviews.com/forum/viewtopic.php?f=9&t=513

seems to offer good runtime!

 

[Black Rose]

I wonder what the XSL stands for?

 

[The Dane]

I just ordered the 3 new types on DX homepage.
When they arrive I'll prepare and post a discharge chart.
What loads du You want to see?

 

[Black Rose]

Definitely would like to see 500 mA and 1A tests on the others.

EDIT: Didn't realize the 3000 mAh cell was unprotected.

 

[hazna]

there are both protected and unprotected ultrafire 3000mah. They look the same though.

Protected, dx sku: 21474
Unprotected, dx sku: 26249

 

[Creecher]

Look, bear with me here, I'm well out of my depth but I have at least used the search function rather than start a new thread about all these new batteries.

I want to run my 2 X CR123A led lights on 18650. Is there going to be a difference between the silver 2400mAh and the double the price 3000mAh. Or should I get the 2600mAh inbetweeners.

What does it all mean? :shrug:

 

[Mjolnir]

I personally would stay away from the ultrafire cells; they seem to not be as reliable as the Trustfire cells. Also, the 3000 Mah ultrafire cells seem to have higher internal resistance than the black trustfire 2400 Mah cells, which means an unregulated light will dim more (they probably won't handle loads as well).
I would suggest the black 2400 Mah trustfires, which seem to really be about 2400 Mah.

 

[phantom23]

'Mjolnir', you probably missed post number 2, there's a link to some review that clearly shows these cells perform great (low internal resistance, high capacity), which allows to assume they found new supplier with high quality cells.

 

[Creecher]

So, which ones are most suitable to replace 2 x CR123A? What's the difference between a 2400mAh and a 3000mAh apart from price?

I've read the review in post 2 and one of the new UF batteries seems to last a lot longer, but how relevant this is I don't know.

 

[1 what]

Hi Creecher,
It's my impression that apart from anything else the 3000 cells have a slightly larger diameter than the 2400 cells. How do I know...While the 2400's fit into my JetPro3 the 3000's dont!

 

[Creecher]

Hi Creecher,
It's my impression that apart from anything else the 3000 cells have a slightly larger diameter than the 2400 cells. How do I know...While the 2400's fit into my JetPro3 the 3000's dont!

That's a bit of a cheaty way to gain capacity, or doesn't it work like that? They may not fit my Eagletac aswell.

I wonder whether to just get the 2600 pink ones and hope they're good batteries.

 

[lolzertank]

So, which ones are most suitable to replace 2 x CR123A? What's the difference between a 2400mAh and a 3000mAh apart from price?

I've read the review in post 2 and one of the new UF batteries seems to last a lot longer, but how relevant this is I don't know.

The 3000mAh 18650 won't perform well in high current applications thanks to its high internal resistance. Not only that, they're bigger and might not fit. I would just get the 2400mAh cells for their (more) correct size and better capacity at higher currents.

 

[Wiggle]

Looks like best bet right now is Trustfire 2400 black, Ultrafire pink or AW 2600s. Those three are pretty close performance wise.

 

[LEDAdd1ct]

The other factor here is unit-to-unit variability. AW has a reputation for consistency, such that there is a very good chance that the discharge graph for one AW cell of a given capacity will be similar to another. However, that is decidedly *not* the case with many Ultrafire cells. I would not feel comfortable purchasing the Ultrafire 2600 until I've seen discharge curves/general reports on *several* of those cells.

 

[The Dane]

DX shipped today so by mid next week I'll be back with some discharge charts.

 

[Loomy]

whoops, just realised theres already a review... that was quick

http://light-reviews.com/forum/viewtopic.php?f=9&t=513

seems to offer good runtime!

In that he says the AW cells protection doesn't seem to trigger, only the EagleTac does :<

 

[Wattnot]

I wonder what the XSL stands for?

eXtra Scortched Livingroom

 

[The Dane]

Here's some facts I found out when the cells arrived:
The Green Ultrafire XLS is simply the pink one without the protection circuit, so no need for a double test.

The contestants are as follows:
Trustfire 2400mA Black (protected)
Ultrafire XLS 2600mA Green (not protected)
Ultrafire BRC 3000mA (not protected)
Ultrafire TR 2400mA (not protected)
Trustfire TR 2500mA (not protected)

First a 1A discharge test, then a 2.5A test to simulate a MCE/P-7 load.

All charging is done on a Hyperion EOS 1210 charger one cell at a time to minimize differences.

Doing the 1A test now but no results in another 10 hours (tomorrow! Its 4.30PM here).

As per usual the protected cells are stretching the term 18x65mm a bit. 18.9mm x 68.3mm for the pink protected Ultrafire XLS cells.

 

[Wattnot]

The blue Trustfire 2500ma are sold as protected cells here.

Is there a way to test for that to be sure?