Latest release Vapcell 21700 5600mah 12.5A battery

Cool :THUMBS-UP:
These tests give a better real life usage perspective on performance rather than just testing the cells in a discharge rig.
The results differ in every run due to temperature etc except the lower level regulated runs.
I must admit seeing it like this makes me start leaning towards regulated drivers more as opposed to just FET driven.
Different cell but here's the FW3A started on Max for comparison too.

Took me a while to realize they were output readings… :smiley: actually I prefer these over discharge rigs graphs if I were to compare 2 cells directly.

I’ll put bigger labels on for you next time :smiley:

Well, not really. I've conducted a practical DIY test to prove that. I once set a small test led attached direct drive to a couple old li-ion cells which, after a little bit more than a couple days of discharge (I could still see the die lit), I put my finger on the stuff and connected one of the cells which somehow wasn't making contact and wooosh! The led got again a lot brighter (and my eyes :-D were hurting). Since I was using flimsy wire and the cells were going to be recycled anyway I didn't cared if one cell was going to recharge the other and etc, they were initially at less than ≈40% anyway. So I decided to wait again, and after ≈3 additional days, with the led emitter very dimly lit, I disconnected the stuff. I could have let it go even lower if you will, but I think there is no point. This simulates a slightly below 2.5V discharge at ultra low discharge rate.

Wanna know the result? After some resting time (2 or 3 hours maybe, can't recall for sure right now) one of the cells measured 2.59V in my multimeter and the other scored just a tiny bit below 3V. As you may guess the 2.59V unit was the one which was discharged first.

:-)

Fri, 05/24/2019 - 22:52

dont batteries have a cut off around 2.5V anyways that’s supposed to kick in as a last resort?

No, unless they are protected.
And protection circuits are not bulletproof either, f.e. they can fail to notice very low current.

A bit off topic question. May someone help me identifying the OEM of this cell:

I got a very good deal of Lii-100 charger plus button top cell. Since I knew no way it was an NCR18650B I decided to remove the button top, and that is what I got after a nice while of play with my rotary tool.

The cell scored 3256.5mAh in my Lii-500's less optimistic channel which, according to my reference data, is equivalent to a ≈3336.5mAh Henrik score. More or less, of course. Which means that cell may be some “34” model of an unknown (to me) manufacturer. May someone shed some light on this?

Thanks. :-)

Cheers

Thanks very much for your test, but i can not open the link,
could you help me?Thanks

I know this battery factory made in china

Thanks CRX for the very useful comparison graphs. These new Vapcells are a game changer for 16340 and 14500 lithium ion flashlights. Now I am more interested in these small flashlights with the more usable capacities offered by these new Vapcell cells.

Thanks you very much, :slight_smile:

Just check, i know we can not open link in china :cry: :cry:

This site can be opened before, and mooch’s photo sharing is also this site. :weary:

Blacklist :person_facepalming:

It is a pity that the images from the OP are gone :frowning:

I received my 2 Vapcell 10440 batteries and although I can not do real tests, I compared runtime/output on my Maratac copper AAA hotrod. Well, I tried but quite screwed it up. I did the first runtime with an old Efest cell but let it run for 4 minutes without checking temperature. After 4 minutes without thinking I tried to twist it off with the following result:

Yes you can recognise the Maratac knurling in that blister.
After that, a ledwire had unsoldered itself from the ledboard (that one was never soldered very pretty because of a too short wire I must confess) and a dark spot appeared on top of the led dome, so I needed to repair the flashlight (provisionally resolder the wire and scraping off the black bits off the led dome) before starting the second test with the Vapcell 10440. So much for the clean comparison :person_facepalming:

Then after 100 seconds into the Vapcell test, the same ledwire decided to unsolder itself again from the ledboard. The Maratac needs some decent re-doing everything now but here’s the data that I managed to gather. Take it with a grain of salt, also because a new cell is compared to a cell that is 3 years old already but I think that the Vapcell really is the better performer despite all that.

I can do a mAh test on my Opus still, but thusfar Vapcell’s ratings have been decent.

My post count is over 15000 now:

  1. so much for having a life :person_facepalming:
  2. dear time for a giveaway :open_mouth:

Got to keep the hotrods hand cooled at least during the tests. Nice blister :smiley:
Looked good at the start though.

Dear djozz

Thanks you very much for your test :smiley:

Samples have send to hkj for the test

Let us waitting :slight_smile:

depends on the cell
yes, ICR protected cell
and
no, INR unprotected cell

Is the Vapcell IFR26650 2600mAh 55A/75A available? It is grabbing some attention at E-CigaretteForum in this thread I opened: Vapcell IFR26650 2600mAh 55A/75A (red, LiFePO4) reviewed.

Tad off topic of course, just to claim the attention of vapcell Dennis.

Cheers :-)