Electronics and technology blog    /    Reviews    /    Power Supplies    /    Page 4

Another product that was sent to me for review some time ago. It arrived at the end of February 2022 and had to be put on the back burner. As for the product itself, it's a three-port "charger" rated at 30 W.

The second power supply I ordered for review, and honestly, it managed to surprise me. Actually, no—the power supply itself wasn’t what surprised me; it’s relatively fine. What surprised me was the sheer audacity, but this is better seen than just read about.

Back in February 2022, I received a couple of power supplies to review, but because of the well-known events, I never got around to writing the review. At most, I took a few photos. And now, at last, I’ve found time to test at least one of the power supplies I received.

I happened to notice that RuiDeng's store has a discount on the RK6006 converter, and thought it might be useful to share.

A decent power bank for your 18650 batteries, although in my opinion it has a few drawbacks.

A friend recently asked me to help a relative of his repair a power station. Since I wanted not only to help but also to see what was inside and how it worked, I naturally said, “Send it over.” The station has now been repaired and inspected, and I have something to tell you about it. Since this is essentially two articles in one, though, it’s going to be fairly long.

Many of you probably remember that I’ve had just about every converter model from Riden, or RuiDeng, pass through my hands. To this day, I’m still not sure which name is correct. After the RD6012P came out, I’d check from time to time to see what was new, but unfortunately, nothing had changed; the hybrid 6012 was still their latest model. Then, just today, I spotted a new product, and I’d like to share the announcement with you.

Some time ago, one of my subscribers sent me a power supply—or, more precisely, a charger—not for repair, but for testing and review. But what’s actually more interesting is a certain “special feature” I’ve wanted to tell you about for a long time, but hadn’t come across a sample to show. To get ahead of myself, everything turned out better than I expected :)

Another power supply has come my way, this time from an SVEN SB-550 active speaker system. The repair is fairly routine, but still interesting in its own way, and involves replacing the PWM controller with a non-original part.

This review—or article, whichever you prefer—is a continuation of my write-up on modifying a power supply to turn it into a low-voltage UPS. Last time, I covered a 150 W power supply and complained that the LRS-150 turned out not to be a very good fit for this purpose. So, let’s see how its bigger brother fares.

The other day, someone brought me a power supply to repair. Well, not exactly for repair: it had already been repaired and was working, but according to the person who brought it in, it was behaving strangely. The result was a little unexpected, and that’s what I wanted to tell you about today, since I think anyone could run into this “quirk.”

As I mentioned earlier, next up is putting the PSU-UPS adapter board to use. Along the way, I'll also review the Mean Well LRS-150 series power supply today.

As I mentioned before, along with the BL1850 and BL1860 batteries, I also received a charger for them. At first, I hadn't even planned to review it, but I tested it while checking the batteries, took it apart, and decided it was probably worth writing about after all.

Some time ago, I reviewed a universal trigger that was advertised as offering convenient controls and Power Delivery support, but in practice it turned out to be pretty mediocre. This time, I bought a few simple, compact models that turned out to be surprisingly good.

Some time ago, one of my readers asked me to help modify an uninterruptible power supply from Meanwell. This company's power supplies are very good, as I've shown more than once, but this UPS managed to surprise me—and I wouldn't say pleasantly. More on that in the review.

Today, I'm actually going to talk about a single power supply. The idea for this article came to me spontaneously while I was sorting through a pile of junk at home and came across one of the power supplies.

The new RD6024 converter from RuiDeng has finally made its way to me. Yes, I’d been waiting for it ever since the announcement and the release of the first model in this series, the RD6006.

Today I'm reviewing a typical Chinese power supply made to look like a laptop charger—that is, as a replacement for a laptop's original power supply. A look inside, some tests, a minor modification—but overall, everything was predictable even before I placed the order.