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This is the third battery from LiitoKala, and in my opinion it’s a little... strange. But more on that, along with the inspection, tests, and conclusions, as always, in the review.

This is the second battery from Liitokala. It’s the same size, but has a slightly higher capacity and a claimed continuous current of 20 A. You could even say it looks like a pretty good capacity-to-size ratio. Inspection, tests, graphs, conclusions.

Back in early November last year, one of my readers got in touch and offered to let me test several batteries from the well-known LiitoKala. Since I'm always interested in testing different batteries, I of course agreed. In the end, he ordered four batteries to be delivered to my address, and today I'm looking at the first one.

A while ago, I wanted a simple yet versatile device for my workshop. Then I happened to come across this one from Vapcell, got interested, and ordered it for a review. Today I can show you what it’s all about. Inspection, teardown, tests, conclusions.

This is my second pair of batteries from Vapcell, and unfortunately, it looks like it will be the last for now. These batteries don't stand out for their capacity, but they do deliver an impressive 35A. Inspection, tests, graphs, comparisons, and conclusions—as usual.

It's been quite a while since I last reviewed any batteries, so Vapcell sent me a few new test subjects. Today, we're looking at the first pair. I can't really say anything bad or good about them. They're perfectly decent batteries, but nothing particularly special.

As 2021 draws to a close, and following tradition, I decided to publish my annual roundup of battery reviews. This time there are fewer than I expected, but I hope it will still be useful.

About a year and a half ago, I reviewed the interesting, very high-quality ANR26650M1-B batteries from Lithium Werks. Now I’ve got the same batteries, but sold on AliExpress. Let’s inspect and test them, compare them with the previous ones, and hopefully this will be useful. I think I’ve also figured out how to read the production date on these batteries.

At first, as before, I wanted to write two reviews, one for each type of battery. But then I thought: the batteries have similar specs, so why not combine the two reviews into one? So today, it’s a “two-in-one” review, plus a comparison.

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.

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.

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.

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.

Continuing our discussion of multi-component batteries, today I’m reviewing another model with a different form factor and noticeably higher capacity.

Another set of little-known batteries with a high maximum continuous discharge current, this time in the 21700 size. Inspection, load test up to 40A, comparison, conclusions.

I decided to try some 18650 batteries rated for a maximum continuous current of 38A, just out of curiosity. As far as I know, these may be the highest-current batteries of this size, but it turned out to be a lot more interesting than that. Inspection, tests, intrigue, investigations, and conclusions.

Over the years, battery manufacturers have come up with an enormous number of different form factors, yet they still manage to surprise us with something new. It seems like only recently that 21700 and 20700 sizes "went mainstream," and things appeared to have settled down. But then I got my hands on some cells that are not only a different size—26800—but are also described as multicomponent. Well, let's test them, heat them up, freeze them, and see what they're all about.