Battery Capacity Tester 150W DC Electronic Load Tester USB Load Tester Color Screen Data Monitoring Constant Current and Constant Voltage etc. 4 Working Modes

Diese elektronische Last lässt sich für jeden Zweck sehr gut einsetzen. Man kann damit beispielsweise die tatsächlich vorhandenen Kapazität eines Akkus feststellen, oder ein Netzteil belasten, um zu überprüfen, ob es die angegebene Leistung auch wirklich liefert, ohne dass dabei die Spannung einbricht, oder das Netzteil dabei überhitzt. Man hat auf dem Display immer Strom, Spannung, Widerstand, Leistung, Innen- und Außentemperatur im Blick. Das einzige, aber leider auch sicherheitsrelevante Problem ist der Netzstecker, der nur mit dem mitgelieferten Adapter in eine Schuko- oder Euro- Steckdose passt. Da passiert es regelmäßig, dass man beim herausziehen an die ungeschützten Kontakte kommen kann, weil der Adapter in der Steckdose stecken bleibt. Das ist schlicht und einfach lebensgefährlich! Ich hab mir deshalb den Stecker abgeschnitten und dafür einen passenden Schukostecker montiert.

I'd never used one of these devices before but I was working on a project that involves sending DC power over coax cabling and needed something to act as an adjustable load for my testing. This unit did exactly what I needed it to. The menus were fairly easy to figure out, and I liked that it gives you the flexibility to program a constant (or timed) voltage load, amperage load, or power (wattage) load. The screen is nice and bright and easy to read and the fan for dissipating heat during testing is reasonably quiet. I'm going to create a 3D printed enclosure for the circuit board since I'm not a fan of it being exposed but otherwise I have no reservations about recommending this model to anyone shopping around for a new DC load tester.

It worked fine in my initial two battery tests. Then, it completely died. Screen won't come on, nothing.

So I have been using this for a while now and it does its job very well. It is also useful to purposely discharge malfunctioning batteries before dropping off for recycling. My only complaint is about the app. The scale of the graph is not adjustable. So if you are using this for low voltage loads, say 5v the graph on the app is useless. It would be nice to be able to select the scale or zoom in the graph to lower voltage and or power settings.

I really like these load testers- very helpful in assessing batteries ACTUAL performance. There is an accessory that I’ve seen in use but cannot locate for sale that is a daughter board kind of arrangement that has common smaller battery sockets (AA, 18650, etc.) that would round this out perfectly. In any case, highly recommended.