Vapcell S4 plus four-bay charger with charging current up to 3 A per slot
20-10-2020, 22:52
Those who read my battery reviews have probably noticed that almost none of my tests go by without a "conditioning" cycle, which I run using a relatively simple charger. I reviewed it more than 5 years ago, and it served me faithfully all that time. But I think it's time to replace it with something more convenient and powerful, so today I'll be talking about the Vapcell S4 plus charger.

5 8251
And another roundup of various products for radio amateurs, part 8

5 8251
3-10-2020, 23:05
I’ve been a bit under the weather, which is why there haven’t been any new reviews. But I did find time to browse AliExpress, and today I’d like to share some interesting and potentially useful products—or, more precisely, links to them.
An Interesting Electronic Load Option
27-09-2020, 20:32
Yesterday I was browsing AliExpress and came across an interesting take on an electronic load. I read a little about it and decided to share it with you in case it comes in handy.
Boost converter with power up to 400 W
26-09-2020, 13:12
For some reason, I rarely review boost converters, and I don't think I've ever reviewed one with this much power. But people often ask me about converters like this, so I bought this one specifically for a review.

5 0180
Another roundup of assorted products for electronics hobbyists, part 7

5 0180
25-09-2020, 22:05
A weekly roundup of things I came across on AliExpress this week that might be useful to other readers too.
RD6018 converter now available to order
24-09-2020, 12:27
The new RD6018 adjustable converter is now available from the official RuiDeng store
Liitokala LiFePO4 batteries with a claimed capacity of 32 Ah
24-09-2020, 02:46
Not long ago, one of my readers got in touch and offered to let me test some batteries I hadn't handled before. But in this case, we're not talking about a different chemistry—that part is familiar enough—but about the form factor and capacity. As usual, though, it's best to read the review for all the details.
Step-Down Voltage Converter, Up to 10 (12) A
22-09-2020, 02:19
Not long ago, I published a review of a step-down converter module rated for up to 20 A. As I mentioned then, though, it was already the second one I’d ordered from AliExpress. Today I’m reviewing the one I received about a year ago instead, with my first order.

4 2140
More Products for Electronics Hobbyists and Beyond, Part 6

4 2140
18-09-2020, 23:49
Another weekly roundup of useful and interesting products from AliExpress.
A couple of types of 5 mm LED holders
17-09-2020, 11:08
A micro-, or perhaps even nano-review of little gadgets for radio amateurs, designed simply to make your DIY devices look a bit neater.
New from RuiDeng: the adjustable RD6018 converter — announcement and discussion
16-09-2020, 12:38
Information about a new model of adjustable converter, the RD6018 from RuiDeng, has appeared online. I did a brief comparison and decided to share what I found.

5 0130
More products that may interest radio amateurs, part 5

5 0130
11-09-2020, 22:22
Another Friday (or maybe Saturday) roundup of interesting products I came across on AliExpress.
New model of adjustable 60 V, 6 A voltage converter
11-09-2020, 12:04
No, friends, this isn't actually a coupon or a sale. I was just browsing AliExpress and happened to stumble across a model of adjustable converter I hadn't seen before.
Vapcell batteries, part five: 18650 size
10-09-2020, 00:07
In today's installment of my VapCell battery review, there won't be a variety of form factors: the whole review is devoted to one size, probably the most popular one, 18650. Even so, I think it'll still be useful.
Step-down voltage converter with an output current of up to 20 A
9-09-2020, 15:39
I needed a powerful step-down voltage converter for one of my projects, so I decided to give it a quick test before putting it to use. A quick look, some tests, and my conclusions.
BL1013 battery for Makita tools
6-09-2020, 03:07
Today I'm writing about how a friend of mine ordered batteries for Makita on AliExpress, and how it all turned out.

4 6430
More Products That Might Interest Radio Amateurs, Part 4

4 6430
4-09-2020, 16:01
I was recently looking for something on AliExpress, but got a bit carried away and started browsing all sorts of interesting products. Here are a few I’d like to show you today—maybe you’ll find them useful.
An interesting soldering iron at a relatively low price
3-09-2020, 15:16
I came across an interesting soldering iron—or, more precisely, one model available in two versions.












