
8 1281
EVE INR-4695 Batteries

8 1281
Well, is it time for a tasty battery review? Meet the 4695-size lithium batteries. I hope you find this interesting.

4 7951
BYD FC46120P 24Ah LiFePO4 batteries

4 7951
25-07-2024, 14:07
The second test subjects from the batch I received—and this time, these are batteries I hadn't tested before. On top of that, they're simply more interesting than the previous ones.

5 6602
Somewhat unusual 33140 15 Ah LiFePO4 batteries

5 6602
I recently received three types of batteries to test, and decided it would be useful to share the results and my thoughts on them.

3 54510
Parliament passes laws exempting imports from customs duties and VAT, but there are some caveats

3 54510
18-07-2024, 13:50
Today, the Verkhovna Rada of Ukraine passed two bills, No. 11258 and No. 11259, in their second reading and as a whole. They are intended to restore the energy infrastructure and clear mines from Ukrainian territory as quickly as possible.
Fnirsi HRM-10 Battery Impedance Tester and Milliohm Meter
26-06-2024, 02:37
Yesterday, a package with Fnirsi's new battery impedance tester finally arrived. I spent most of today exploring its features, running a few tests, and writing this review. I'll say right away: I have a lot of work on at the moment and not much time, so I'll keep this relatively brief.
Sale and brief preview of the Fnirsi HRM-10 milliohm meter
21-06-2024, 02:26
I was asked to share information about a sale on Fnirsi’s new milliohm meter. It looks like an interesting little device, so I thought it might be useful to you.
Sale of power supplies and drivers made by Light Route
14-06-2024, 03:01
I think it's perfectly fair to call this post an advertisement. Yes, I decided to become, so to speak, a dealer (or representative) for one of the Ukrainian companies. Though the reality is a little more complicated, but that's beside the point. Anyway, I've added some useful, high-quality devices to my OLX page.
68 V 800 W Power Supply from RuiDeng
11-06-2024, 01:07
A couple of months ago, one of my readers sent me a RuiDeng power supply to test. Well, it’s sold under that brand, although as far as I understand, it has nothing to do with the company itself. He sent it to me because he’d seen my review of the same power supply, bought from the same store, but it turns out quite a few changes have been made since then.
Ruideng RD6030 Adjustable Converter
27-05-2024, 15:07
Recently I announced a new product from RuiDeng: the RD6030 converter, with an output current of up to 30 A. It’s definitely an interesting new model, so I ordered one right away. Today I’m ready to take a closer look at it.

23 00429
Converting an LRS-200-12 power supply into a charger with a proper charging profile

23 00429
23-05-2024, 17:00
I've already explained how to turn an ordinary power supply into a charger, but for a long time I couldn't shake the thought that a charger should work more properly. Then I came up with the idea of making one that was not only proper and simple, but also based on the adapter board I'd already shown.

10 1723
Minor restoration of three LRS-350-12 power supplies and converting them into chargers

10 1723
23-05-2024, 01:54
Given the current situation—or, more precisely, the lack of "power"—charging batteries has become a serious problem, preferably with fast charging. On top of that, I got the idea of building a small UPS for the refrigerator, which also needs a charger. I bought several LRS-350-12 power supplies for this whole project, but as you can imagine, things aren't quite as simple as I'd hoped :)

9 02034
CALB L173F230B LiFePO4 230 Ah batteries

9 02034
Some time ago, my new 230 Ah CALB batteries finally arrived. They were sent directly by the manufacturer, so I tested them as best I could, and today I’ll show you what they’re like.
RuiDeng RD6030 Converter Announcement
9-05-2024, 02:28
Quite unexpectedly, RuiDeng has released a new converter model. I really wasn’t expecting this from them after the RD6024 came out. Here’s a quick look at what they’re offering.
A pair of fans sold as Sunon, bought offline
1-05-2024, 16:57
It all started when I needed to buy a few fans and wanted something from a reputable brand. Today, I want to tell you how that turned out.
Electronic Load CL24: What Are You?
27-03-2024, 14:05
At last, I’ve found the time and opportunity to review a relatively new model of electronic load from Atorch. Is it any good, and what has changed? Let’s find out.
A good price on the DL24MP load and a quick review
22-03-2024, 04:29
AliExpress is having a sale right now, and I spotted a good price on the DL24MP load. People often ask me about it, but I haven't reviewed it yet, so I decided to kill two birds with one stone: share the good price, give it a quick review, and compare it with the DL24EW along the way.
TPcell battery for a Milwaukee M12 tool
21-03-2024, 03:28
A new drill driver has shown up at my place—or rather, not exactly new, more like not very old. And it didn’t just show up; I brought it home myself. Anyway, I decided to buy an extra battery for it, and today I’ll tell you how that turned out.
RD 25A Cable Set
19-03-2024, 04:10
Of course, cables like these are often better and cheaper to make yourself, but in this case I just couldn't resist the sale prices and ordered two sets right away :) In any case, I think the information will be useful.











