Electronics and technology blog    /    All publication of the user kirich    /    Page 27

Some time ago, the ambitious Beelink GT-King Pro TV box was unveiled. Essentially, it’s an updated version of the Beelink GT1-K, and today I’ll take a look at this new model. As usual, I’ll inspect it, take it apart, run some tests, and share my conclusions.

The latest model of adjustable power supply—or, more precisely, a converter for building one—has appeared in the well-known RD official store. This post is something of a preview, since I don't have one in hand yet. But I'll have a question about that at the end of the post.

I came across a faulty power supply and decided to jot down a note about repairing it, and while I was at it, answer a few questions people ask me, using a real example, so to speak.

This is the second part of the saga, “a battery tester for a friend,” and today I’ll be talking about changing the output voltage of the power supplies and connecting them in series.

After reviewing so many batteries, I decided to bring them all together in one big article. No unnecessary information here—just inspections, tests, comparisons, and brief comments on any noteworthy features observed during testing. Warning: this page uses a lot of data!

As the “repair” project gradually winds down, I’m slowly finding time to get back to my other projects. I’ve started with the multichannel tester for lithium battery packs, which I first wrote about last year. There will be several stages, but the first is the most challenging one: the power module.

A few deals and a new product from Gearbest

Today I’m reviewing batteries that are, in essence, nothing particularly special: a current rating of up to 15 A and a capacity of around 4200 mAh. The only thing that sets them apart is their somewhat uncommon form factor, but as always, you’re better off reading the full review.

More 21700-format batteries, this time focused on fitting the maximum capacity possible into this size. I’ve already reviewed similar batteries, but from Samsung. They’ll be taking part in today’s comparison.

Well, friends, today’s review is about some rather unusual batteries. Many of you know LG’s very popular HG2 model, the so-called “chocolate bars,” but who has seen these batteries in blue? A closer look, tests, comparisons—all in today’s review.

This time, we’re looking at high-current Molicel batteries again, but in the newer 21700 form factor. Well, not exactly new: batteries of this size have been around for quite a while, but they’re still much less common than the more widely used 18650 cells. In any case, I liked these batteries, but you’ll have to read the full review to find out more.

Not long ago, someone asked me if I had tried Molicel batteries. That’s when I realized that not only had I never tried them, I’d never even heard of them before. So I ordered a couple of different form factors in this batch to test, especially since they’re advertised as high-current cells. I hope this will be interesting.

Well, friends, I got my hands on the highest-capacity 18650 battery—or at least, that's what they say "on the internet." I ordered them specifically to check whether that's true, and to add them to my "database" of various batteries.

A new batch of batteries arrived not long ago, and today I'm reviewing the first one: the Panasonic NCR18650BD, rated at 3200 mAh.

Banggood is having a sale. This might be useful to someone.

Not too long ago, I was reworking an electronic load and rediscovered plastic fasteners—or, more specifically, plastic standoffs for mounting circuit boards. Of course, you can use them to mount more than just circuit boards, but in my case, circuit boards are what I run into most often. So today I have a quick look at a set of plastic standoffs for M3 screws.

Not long ago, I started posting reviews of power supplies from the Banggood store. I also mentioned that I’d be doing several reviews, with the power supplies presented in order of increasing power. Today I have the fourth and final review in the series, where I’ll tell you about a powerful branded power supply.

As I mentioned, I’ll be reviewing a breakout board for installing converter modules soon. I ordered it from the same Taobao store as the converters themselves, and I found it interesting enough to give it a review of its own.