Electronics and technology blog    /    Materials for August 2021 year

I've had all kinds of batteries: standard ones, protected ones, ones with a converter, and even one with a built-in charger. But this is the first time I've come across a battery this unusual. Inspection, tests, and conclusions.

Another set of 18650 batteries. They don't really stand out among the dozens I've tested, except for their slightly higher rated capacity and lower current rating than the well-known VTC6, HG2, and 30Q, which I'll compare them with at the end of the review.

It's been a while since I wrote a "not a review," and a friend just sent me a link to a new product from Atorch, the logical continuation of the DL24 series. I wrote about it earlier in a similar "not a review" and in a more in-depth article with an example of how to build a power module for it. So today, here's a brief announcement of their new product.

Another power supply I was asked to test. I was interested in it myself, so I ordered one for a review. As usual: inspection, schematic, tests, conclusions.

Not long ago, one of the blog's readers asked me to help sell some voltage converters. I thought, why not? Someone might find them useful, so I put together a short overview to explain what we're talking about.

Another pair of 21700 batteries, but this time in the high-capacity class, which I also have something to compare them with. Besides, in my opinion, batteries like these are currently one of the fastest-developing segments, since they offer high capacity, decent current, and a wide range of applications.

Not long ago, I posted a review of my new compact soldering station, and afterward someone recommended replacing the handle with something more comfortable. I found one of the fairly well-known options, ordered it, gave it a try, and here are my thoughts :)

Another set of high-current 21700 batteries, with a capacity of 4000mAh. This is already my fourth review of batteries with similar specs, so I have plenty to compare them with—and I’ll do that at the end of the review.

Not long ago, one of my regular readers suggested in the comments that I review an unusual power supply. It caught my interest, so I thought, why not? It certainly stands out from the crowd of common power supplies.

BAK batteries have appeared at the well-known Nkon store, and I've already been asked several times to review batteries from this manufacturer. Well, as it happened, I had a few of them on hand.