This goes to show that you shouldnât rush QC, because QC always takes longer than the rest of the company wants, as they see it as âpreventing them from making moneyâ, when its more like âassuring they can make moneyâ off of the product.
Also not right since that implies that at 3V there is still 15% battery left. 2.8+0.07*3 = 3.01V
Most of the capacity comes from the higher voltages and not much left when the battery is low voltage. Either way, it would be nice if some data sheet spec exists per battery to say âexpect is to maintain >= this voltage after 1 month, 6 months, 12 monthsâ or similar.
Thanks "contactcr" for increasing my understanding.
I am an older person who worries too much to sleep well at night. Flashlights have given me something to do at night and the little pleasures from collecting and comparing many varieties of these "budget light treasures" keep my mind from dwelling on the larger problems of life.
Researching and learning this technology which is new to me (and having to remember the different user interfaces of each light) also helps keep my mind sharp. I do not post much and wish I had more to contribute, but I do read almost all of the BLF posts daily.
Also resting voltage is waay different than load voltage.
If a cell has a resting voltage of 3.0v it is 99% dead, as when you apply a load to it, it quickly drops towards 2.5v.
Whereas if you run a constant 1 amp discharge till it hits 3.0v, it may âbounceâ back up to 3.3v or higher.
And yes I pulled these numbers out of my butt, but the point still stands.
The old version of white battery was customized and researched by vapcell alone in cooperation with the battery factory, but the sales volume was too small for the battery factory to bear, and the factory had to rely on large sales volume to make money
So it has stopped production
The flashlight Market is too small, and the sales of high power batteries are not optimistic
Vapcell 14500 1000mah 10A also encountered such a low sales situation
Hope the future will be better
Vapcell T8 and T6 can meet the needs of high capacity and high power flashlight users
Yep, we have to rely on other markets to keep these batteries alive.
Years ago, it was laptop batteries that brought 18650s (low drain) and power tool batteries (high drain). Then Tesla with their massive orders of 18650s from Panasonic (later to be 2170s), and then Vaping with more of the high drain variety of 18650s.
Nowadays weâre basically relying on Tesla, Vaping, and Power tools to get the batteries that we want, so we have to work around that. Iâm honestly surprised that we got 26650s.
It looks like the T6 16340 compares quite admirably to the old 800mah white version. The voltage curve is more square, and the capacity difference is mostly made up at low voltages (<3.3V). 6amp curve looks great and is really all thatâs needed from this size cell. Hope to see HKJ add it to his comparison tool, but it seems like it might be the best option available. If Illumn gets these Iâll buy a pair before they disappear too.
So that means weâre not going to see the Vapcell 800mAh 16340 7A (white) anymore in the future.
HKJ reviewed it here:
And the same will be true for the Vapcell H10 1000mAh 14500 battery - we may soon not see it anymore?
HKJ reviewed it here:
Are there other (special formulated) Vapcell batteries that will not be produced anymore in the near future?
Eg. is Vapcell T50 still going to be produced? How about the rewrapped Sony VTC5D (Vapcell 2800mAh black) or the Sony VTC6A 18650?
I measured my Nitecore NL166 with >4A for a blink on that 15mm MNT FET+1 driver / Osram WF2. Itâs my most powerful 16340, but I have only this one and donât know if thereâs a significant variance, also cannot do professional measurements.
Edit:
The 6A Vapcells are now listed on AE. Ordered two .