Please test the Kinoko high drain IMR10440 400mha cell
According to vinh they “seem about equivalent with my testing” to the Efest IMR10440.
But who knows maybe they are of updated chemistry, it was years since Efest released the IMR10440. And a lot has happened in performance in all the other sizes.
At least this means another producer of IMR10440 cells and that hopefully means more availability of good IMR10440 cells.
Maybe they are the same as vinh says, and Efest had some form of a few years exclusivity agreement on the IMR10440 cells, from whatever factory makes all these various Chinese made lithium cells that shows up with the same base cell at the various rewrappers.
Wolfdog1226 - The easiest way to locate an overseas seller is on ebay - and select a filter that is not in USA, then search for your item, and look for seller's location, find someone in Europe for these items. Also - these are high drain batteries, really not suitable for flashlight, more for vaping.
Wondering about the claimed “PTC cathodal block protection”. The “3500mAh” cells I know (NCR GA, SDI 35E, LG MJ1) all have no integrated PTC. Does Fenix add a PTC at the cathode (the PCB is at the anode)? Or is it neither of these 3 cells? Looks like someone should do a teardown.
I think, Panasonic, Sanyo and all the others are cheating on us.
They sell theire 3400mAh batteries for 8-10$ - but Ultrafire sells 9900mAh ones for ony a little over 1$ per cell.
HKJ any chance you could do some review of a new product that i think will be more and more a mass product like lipo jump starter powerbanks?
anyway I think your lab it’s more precision oriented and maybe could be a bit difficult to test such amount of currents,…. or?
ok thanks, i thought so. well i was more of thinking of a real car startup when i imagined the test, something with clamp and meter logging data to a pc…. that was my fantasy scenario…
A real car would not be nearly as useful as a lab test. The problem with a car is that it will not be the same each time. When I test in the lab there is very little variation, making it much easier to compare the results for different products.
that’s sure. If you make a test you have to make it properly or don’t make it at all. That’s the way of engineering of course.
Thanks bytheway for everything also for always kindly reply to every question or request!
Bumping to quote from a few months ago, but with the rerelease of the BLF-348 (and potential third batch depending on demand) some more 10440 reviews would be nice, especially the quoted DQG since it’s also sold by Gearbest.
I have ordered them, now the question is how the shipping works.
I have had some problems with my test stations, but I hope that is fixed now. This means I just have a few cells I need to do before I can get to the new cells, including 30Q
A new version of the “Nice” brand lithium AA battery is released, seems to be an improvement over the old version you already reviewed. But I don’t know when or where they will be available to buy.