Electronics and technology blog    /    Materials for March 2021 year

I've already reviewed the decent RN-263t voltage relay, and now I've got a simpler, but possibly just as useful, RN-119.

The relatively uncommon 26650 form factor, a capacity of 4.2 Ah, and a current of up to 32 A—that's what today's review is about. As it turns out, these batteries are pretty decent, but as always, more details after the jump.

Here I am again reviewing a power supply—and not only that, it’s another 24 V model. But this time, I’m looking at a branded power supply from the HDR series, which I’ve written about before. This is a review of the smallest power supply in the series.

Another power supply, this time a very ordinary one, but marketed for powering T12 soldering stations. In reality, it’s just a power supply rated for 24 V and up to 6/7.5 A. Inspection, tests, conclusions—as usual.

Continuing my series of reviews of products from Novatek-Electro, I ordered a number of their devices to review. They’re a varied bunch, but I wanted to start with something closer to my area of expertise—and, of course, that’s a power supply. As usual: inspection, teardown, tests, and conclusions.

These batteries are neither high-current nor high-capacity, but they caught my interest because they’re rarely covered in reviews. I thought it was worth filling that gap.

I got these batteries for a review for two reasons: a request from readers and plain old curiosity. Although I had read a review of them before, this is the first time I’ve held them in my hands.

I got this battery mostly just out of curiosity for the review, though that doesn't rule out using it for its intended purpose. But, as often happens with products in certain categories, "something went wrong". Still, it's best to find out all about it in the review.