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More batteries sent to me by a blog reader. This time, though, we're looking at the very common 32700 form factor. I've had batteries of this size before, with various capacities, so I'll not only show you the new ones but also compare them with the previous ones.

Another power supply I bought at the Kharkiv Cosmodrome. It's been sitting around for a long time; somehow I never got around to showing it. But now I've finally caught up a bit with the day-to-day stuff and tested it.

These are the third batteries I've received from a reader, and this time they're from the relatively well-known BAK. Sure, they're not Samsung or Murata, but BAK is still a recognizable name.

The second set of batteries from a group shipment sent by one of my readers. This time they’re some no-name (at least to me) Gotion/Guoxuan cells, but as it turns out, they’re actually quite interesting.

Another compact power supply from a fairly well-known manufacturer, this time rated at 12 W. The short version: I was impressed.

It's been a while since I wrote a review. I've been pretty swamped lately with work on new electronic loads. But a little while ago, one of my readers sent me several different types of batteries to test, and today I'm reviewing the first ones.

Once upon a time—or, to be more precise, 5 years ago—I posted a big roundup of various interesting products. Time went by, and I updated it a little, but now it’s time for a complete refresh, so I decided to start a new thread “on this topic.” As always, I won’t use the tired old phrases “top 100 products” or “how did I ever live without this,” but I will say that you might find something useful here after all :)

Those who regularly read my reviews know that I’ve already reviewed several electronic loads from Atorch. In each one, I’ve predicted (or suggested) what the next models might include. But less than six months later, the company has released a new model with the rather strange name CL24. In this preview, I’ll try to figure out what it’s all about.

Not long ago, I featured a new power module in several of my videos. You may also have seen the backstory behind it in a few other reviews. I can now say that the project has reached a kind of logical conclusion. Though, to me, a conclusion is really an opportunity to improve on what came before and start something new, perhaps even more interesting.

I recently posted a review of LG HE2 batteries, but as I mentioned then, someone sent me a couple more batteries to test. Many thanks to him for that, since battery reviews are very useful.

One of my readers contacted me asking me to investigate and possibly help determine whether the batteries he received from Nkon were genuine. In this case, they were LG ICR18650-HE2 2500mAh batteries.

I've been using thermal imaging cameras for a long time. My first one was a very basic model with a resolution of 60x60. I later replaced it with an HT-A2 with a resolution of 320x240, and today I'm reviewing a model with a resolution of 256x192. It might look like a downgrade, but is it really?

Almost a year after this model came out, I finally got my hands on one. It was inevitable—I enjoy tinkering with this kind of thing. There are already tons of reviews of this model, so I decided to look at it as a measuring instrument and, more simply, check its measurement accuracy.

An interesting little device has landed in my hands: a clamp meter with 1 mA resolution and Bluetooth connectivity. As usual, I’ll take a look, run some tests, take it apart, and share my conclusions.

I needed a power supply for one of my new projects (among other things), so I decided to order a few different models to try out and test. Today, I’m reviewing the first one. A look inside, tests, and conclusions.

In today’s world, there are many electronic devices, and progress is driving them toward ever-smaller sizes. Repairing them with a “grandpa’s” soldering iron is becoming increasingly difficult, though there are still areas where one can come in handy. But today we’re not talking about soldering irons. We’re looking at much more sophisticated equipment, intended not so much for home use as for professional applications.

As luck would have it, I got my hands on one of the new batteries from Molicel. It’s a very interesting cell, primarily because it combines relatively high capacity with a high rated discharge current. Inspection, tests, comparisons, conclusions—the usual.

I’m often asked about batteries, building battery packs, and where to buy cells without ending up with junk. Today I have a short article and video on the subject.