So bought this item off AliExpress for 53 dollars and it arrived in eight calendar days. It wouldn't power up with the supplied USB cord but powered up fine with the supplied wall socket charger.
It gives a wealth of information as can be seen from the attached photos. I set it up today on my 50 amp hour lithium that I use for my electric outboard as I thought it would take too long to test my main 120 amp hour today and I don't want to leave it unattended.
As can be seen from the four attached pics my 50 amp hour battery packed just under 49 AH. I mistakenly set the cutout to 2.9 volts (which would be good for cell level) but the internal BMS of the battery cut short proceedings at about 10.5 volts. As can be seen during the final 13 minutes between the third and fourth pictures the battery suffered a big voltage drop for a discharge of the last two amp hours as is typical for lithium batteries.
Make sure you get the 180 watt DL24P version not the 150 watt DL24 version unless you just want to test little phone and power tool batteries. You will note that I set the discharge rate near the max specified 180W capability at 175.9W.
By the way the included instructions are total crap so watch this video and another one by the same guy if necessary to set it up.
