💡 East Tester ET5410: High-Performance Single-Channel Programmable Electronic Load - 400W Input, 0-150V/0-40A - DC Load Tester Review

Stop blindly relying on battery suppliers. This device gives me the benefit of knowing if everything will be fine. Problems were already identified in the first batch tested. The tester should beep when the test is complete.

Died after a few hours of use. I managed to test a few batteries but then he decided to die. The screen went black and that was all she wrote. I went back and ordered a second block. I will change this rating if and only if the new device lasts a full year.

Unfortunately the product did not work. I was happy to find a 2 channel electronic load and it was very cheap for two channels (most single channel units cost the same). The display was nice and was pleased with the physical appearance of the product. But none of the channels worked. It may have been a defective block, but I don't want to risk the time and effort of bringing the block in and testing it again. He was returned.

I bought this to test the capacity of my off-grid battery systems. The tests were carried out with the Valence U27-12XP lithium-ion battery. I have 20 of these and would like to group them by their capacity. They are designed for 12 V 138 Ah. I set the load test to 20 amps 0.2C. I found that the ET5410 quiescent voltage was 1.25V less than my ET5410 pin meter. Under a load of 20 amperes it was 0.5 volts. I test up to 10V off, but it's actually 10.5 when it's off, giving inaccurate readings. You

Update 03/01/21: I have a problem: every time I turn on the tester, the default language is Chinese. It took me hours to figure out how to switch it to English. I've marked the steps and can toggle them back if needed. I contacted East Tester for a solution. I am now giving this issue 3 stars. It is not a cheap tool to solve such problem. Original Review: This is a great addition to my electronic tool box. I have a solar system with batteries and I need this tool. When buying new batteries I…

I'll update this review once I test using the USB port on a computer. I will say when I first got this I thought "horrible menu interface" until I got my Kunkin to compare it to. The ET5410 display is much easier to use. I've used the battery test function extensively on LiFePO4 cells, really all it takes are cables for remote voltage measurement (e.g. Kunkin). I've taken the case off and compared it to other test equipment and it's a very well designed tool, good soldering and build quality…