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A little over three years ago, I reviewed the ZKE EBC-A10 electronic load. It quickly became one of my main instruments for battery testing, and you’ve probably seen both the load itself and the graphs I included in my battery reviews. The instrument turned out to be genuinely useful. As far as I know, my review was either the first or one of the first, but it’s time for an upgrade. Today, I’ll be taking a look at the new version of this electronic load.

I posted a review of the YR1030 milliohm meter. It’s a great instrument, and I use it very often—not just when working with batteries, but whenever I need to measure low resistance. I also have a friend who works with batteries, and a while ago I suggested he buy one too. He was a little skeptical, but after seeing it in action, he decided to get one for himself. Knowing the specifics of his work, though, I recommended the updated YR1035 instead of the YR1030. Today I’ll explain how they differ and why, in this case, the 1035 is the better choice.

I can't say I work with batteries very often, but I do occasionally have to test whether they're up to the job. Since I'm mostly dealing with high-current batteries, it was time to get a proper holder for them. As always, the inspection, description, comparison of the different connection methods, and conclusions are below the fold.

While developing a device for testing and balancing multi-cell battery packs, I needed a multifunction meter. Since I planned to use it together with an electronic load, though, the meter had to be a little unusual. A look at the device, its description and tests, plus a short cautionary tale, after the jump.

I’ve already posted a review of a very similar device once before—the title was almost the same, too. This time, though, the little meter is a bit cheaper, and its quality is definitely no worse than the previous one. So, here’s a quick review of a useful little gadget for electronics hobbyists.

I sometimes order small meters for battery packs, and I finally got around to testing them and writing a mini-review. A look at the device, a few tests, and some conclusions. I hope you find it useful.

I ordered this meter quite a while ago from a different store, but after browsing AliExpress I found a listing for a device that looks exactly the same. Since I'm almost certain they all come from the same basement large factory, here's a link to another store.

I already reviewed a small voltmeter about three years ago, and now another similar little gadget has landed in my hands. The previous one was more expensive, but it had a separate measurement input and could measure up to 99.9 V. This one is much simpler, but I figured these little meters might still be useful to someone.

I've already seen many reviews of this company's measuring instruments, so mine will be more of an addendum and another look at Sndway's products. I haven't come across a review of this particular model, though, and it has a few distinctive features. As usual, I'll take a look at the device, take it apart, run a few tests, compare it with another instrument, and share my conclusions.

Today I'm reviewing a somewhat unusual device. To be honest, I'm not even sure what the right title for this review would be, since this device isn't just a voltmeter, though that's probably the main thing I'm interested in here. This won't be a very long review, partly because the device is rather specialized and partly because there isn't all that much to say about it.

I've published quite a few battery reviews, and people often asked why I don't measure the batteries' internal resistance in them. My answer was usually the same: the instruments I had couldn't measure this parameter accurately, so there was no point in taking measurements. But fairly recently, I got my hands on a specialized instrument designed specifically for this kind of measurement. This device belongs to a very specialized class of measuring instruments, but I can imagine it being useful for more than just working with batteries.

Hello everyone! Today I’d like to introduce you to a new and very useful tool: the PM6530D infrared thermometer. You can set the material’s emissivity on this thermometer to get more accurate surface temperature readings. It also has UV LEDs and a temperature and humidity sensor, and you can connect an external thermocouple. A built-in laser pointer helps illuminate the surface being measured. If you’re looking for a professional tool such as a thermal imager, I recommend reading this review (Thermal Imagers: What Are They and “How Do They Work”?) by KIRICH

Just a few days ago, I posted a review of an advanced "USB tester," but it wasn't the only thing in the package: there was also its closest equivalent, a tester from Power-Z. The two testers have a lot in common, and even cost the same, but are they really that similar in use?

I've already posted reviews of two basic USB testers. Though, in my opinion, the very term “USB tester” is rather vague. But this time I have a much more advanced device in my hands, one that can reasonably be called a measuring instrument.

Last year, I reviewed two electronic loads made by Sousim. I successfully put one of them to use, and today it’s the turn of the second, which originally could only be controlled using a computer.

It's been a while since I last picked up a soldering iron. A little while ago, I received a very useful little gadget, and today I plan not only to show it off but also to put it to work on a real project. Warning: lots of photos, which may be a problem for users on expensive data plans.

A while ago, I bought a Uni-T 181A multimeter and thought that the only thing missing from the complete setup was a Bluetooth adapter. I got one as a New Year's gift, and today I'll tell you about it. Unfortunately, it turned out that things weren't quite so straightforward. More on that in the review...

Some time ago, I published a review of a kit for building a simple oscilloscope. It would have been fine, except that its bandwidth was very limited. I wouldn't say the little device I'm reviewing is much better, but it's rated for a bandwidth of up to 4 MHz. Let's see what it is and how it works :)