Multicomponent Li-NMC 26800 Yuliang 3.7 V 7000 mAh batteries
20-07-2021, 14:48
Over the years, battery manufacturers have come up with an enormous number of different form factors, yet they still manage to surprise us with something new. It seems like only recently that 21700 and 20700 sizes "went mainstream," and things appeared to have settled down. But then I got my hands on some cells that are not only a different size—26800—but are also described as multicomponent. Well, let's test them, heat them up, freeze them, and see what they're all about.
UM-U120S power supply, 12 V 10 A
20-07-2021, 10:39
It's been quite a while since I last reviewed a power supply—one of those "feeders" that power all sorts of devices that need less than mains voltage but more than a battery can provide. So, at the suggestion of one of my regular readers, I ordered several models to test. Today I'll be looking at the first one.
Vapcell F14 batteries, 1400 mAh and 3 A in 18350 size
20-07-2021, 10:32
I've already reviewed Vapcell 18350 batteries, but those were relatively high-current cells, while these are designed with capacity in mind, so the current is limited to 3 A. Inspection, tests, conclusions.
