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I’ve already reviewed LiitoKala batteries with a claimed capacity of 32 Ah, but those were sent to me by one of my readers. This time, I bought similar batteries myself, though with a different claimed capacity and from a different seller. In short, things aren’t looking too good. Read on for the full review.

Not long ago, I posted a review of the new Fnirsi FNB48 USB tester and mentioned that both a Bluetooth module and software for it were expected. I received the module quite a while ago, but the software only arrived now, just as promised, so today I'm adding to my previous review.

While preparing various components to modify my electronic load, I ran into the problem of connecting USB devices and a local network to a tablet with just one USB port. The simplest solution is to use a USB hub, which is what I want to tell you about today.

For that same modification of one of my devices, I wanted some nice buttons—not just any buttons, but ones with backlighting. I found some on AliExpress, ordered them, got them, and put together a review in case they might come in handy for someone.

While modifying yet another device, I needed some frames for assembling battery packs from 32700 cells. I ordered some, received them, and thought, why not put together a short review on the subject?

Thanks to one of my regular readers, I got my hands on a WZ5005 voltage converter. I wouldn't say it has anything particularly special going for it, but it could be an alternative to the popular DPS models from RuiDeng. More on that in the review.

Some time ago, news emerged of a new FNB48 USB tester from Fnirsi, a young but fast-growing company. I thought this model looked interesting, so I decided to order one for a review. I was also curious to compare it with other testers, such as the rather expensive ZY1276 from YZXstudio.

I’m often asked about various battery packs, and the questions are about both battery protection and balancing. I needed a battery pack, a protection board, and a balancer for a UPS conversion project. The battery is still on its way, and there’s no point testing the protection board without it, so today I’ll tell you about the balancer.

2020 is coming to an end, and at readers’ request I’ve decided to bring together all my battery reviews from this year in one article. They’ll be heavily condensed, of course—the goal isn’t to show everything, but to provide a kind of “digest.” I published a similar article last year, but back then almost all the batteries were name-brand ones from Nkon, whereas most of these are from AliExpress. Warning: VERY large amount of data ahead!!

Some time ago, I announced a new product from Atorch, the DL24 electronic load. But calling this device new is a bit of a stretch; it would be more accurate to call it a budget version, without a heatsink included and with a maximum power limit of 1000 W.

This post isn't an ad or a promotion; it simply covers new products that have gone on sale. Today I'll tell you about some interesting desk clocks that were released not long ago.

A little roundup of products from AliExpress. I’d say it was for “Black Friday,” but I’m pretty skeptical about all these sales, so it’s just a roundup.

I’ve already reviewed a 128GB external SSD from Orico, but when I was offered the chance to test a new version, this time with 500GB, I thought, why not? The previous one works fine, and as they say, “you can never have too much storage.”

I got hold of a list of the most popular items in the 11.11 sale. It's a long list, so I'll mention the ones that I personally think might be of interest. If you have questions about other items, let me know.

Some time ago, I posted information about a new model of adjustable converter that I had stumbled across completely by chance. But literally that same day, a company representative contacted me on Skype and offered to write a review of the model. I received it not long ago, tested it, and am ready to tell you more about it.

AliExpress is gearing up for a big sale, and I decided to share links to various products I came across. Mostly not because they’re cheaper—we all know how “sales” work—but simply to show you some interesting things.

Sometimes you need batteries with a built-in protection circuit, and the selection of models is considerably smaller. It gets even more limited when you’re looking for models with protection rated for high current. Today I’m reviewing three models, but testing revealed that sometimes things can be so good that they turn out to be “bad.” Still, you can find out all about it in the review.

Last time I covered 26350-size batteries. Today, I'm looking at cells in another uncommon size, 10370. They differ not only in size, but also because they're LiFePO4 batteries.