Programmable DC Power Supply (0-30 V 0-10 A) HM310T High Precision 4-Digit Voltage Current Power Time Display Variable Switching Digital Power Supply with PC Software and USB Interface

The only thing that would make this better are two things, and they are - Since we have to go into the hidden menu to turn on/off the keypress beeping how about you tell us what the other settings are for in it. The second thing is that the software for the computer were more intuitive with an actual reason in being. As it is the Software is trash, but the hardware is really great, so I give it five stars since I don't care about its lousy software.

Supper easy to use and figure out. The software is less the useless plus you don't want to install Chinese software anyway. All it does is let you put the v an i and select the output on or off from your laptop. Its small and powerful for its size and really quite. Its perfect for top balancing your batteries. And as you can see the V is right on the money. I would like to add to the engineering department will your next design give better viewing angles to the display. I have to be looking right at it to see if the display has an 7 or 1 on the top row. Thanks.

I'm just a hobbyist and wanted a 30V/10A psu that's easy to use, reasonably accurate, and basic memory functions to save my most common settings. Interface is a little confusing at first, e.g., storing a setting in one of the M buttons and recalling was a bit trial and error because my old eyes cannot make out the miniscule text in the manual. For my needs this psu is more than sufficient and the best mix of features and functions I found in this price range.

Easy to use; accurate to displayed precision with light load, according to my Fluke DMM. Looking forward to operating it by remote USB control - docs minimal but what is this little cd included? Haven't seen one of these in a while.

UPDATE: I’ve bought TWO (2) of these. You can ONLY save to M1 & M5 and that’s it. Both power supply’s had EXACT SAME PROBLEM. Return. DO NOT TRUST THESE REVIEWS. So annoying because the must know this. Hence, the price.—————————-- Full review belowFirst the "MANUAL' is just TWO pages and pages are 3"x3" so it is almost non-existent. Also, whoever wrote the so-called manual KNOWS NOTHING about this power supply. They basically got someone to press buttons and write down what happened. I KID YOU NOT. Its like "Press the M1 button and the M1 button will light up. If voltage is blinking, Rotate the dial and change the voltage." They mention that the Voltage and Current SETTING for a button will be SAVED if you press "Esc" button OR if 5 seconds go by, where it will TIME OUT and SAVE. It does SAVE IT, as long as you DO NOT turn it off. For mine, HM305T, no matter what I do, after I turn it OFF and back ON, it forgets what was in those Memory Locations M1 to M6. I DO NOT know if all of these power supply's are like that or if I just got a BAD ONE.With my LIMITED TESTING, with a multimeter, it seems to OUTPUT exactly what is set on the power supply. I also hooked it up to a GameBoy Color and it powered it OK without blowing it up. I haven't tried powering a LAPTOP for repair yet, but Im hesitant if it's not working perfectly.Maybe there is some magic sequence that would allow me to save VOLTATE/CURRENT/SECONDS to M1 through M6 but I think Ive tried everything. There is a "CU" (Change Voltage) button and a "CC" (Change Current) button, a "NXT" button, and a "ESC" button. I've tried a lot of permutations/sequences but nothing will cause them to SAVE. Full Disclosure: One time, it DID save VOLTAGE to "M2" but I was trying so many button combinations, I couldn't remember what combination it was. Again, the "manual" is useless.I tried multiple sequences, "short" presses, "long" presses, etc, but I cannot repeat it. I've also scoured the internet looking for another USER or reviewer (Youtube, etc) to show how they do it, but I have not found anyone say "THIS is how you do it".

If you have Norton protecting your computer, it will see the software as a "strange" function and not allow the software to work. When trying to run, a error "datebase locked" occurs. This is because Norton has locked access to this file required to run the program. You must right click on the Norton icon in the task bar and select "View Recent History" and scroll down till you see "Data Protector blocked a suspicious action by PowerDC.exe". The select this entry and then select exclusion under "Actions". This should then allow the program to access its .db3 file. Note that if you move the program or reinstall, you will need to repeat this. Also watch Circuits by Code YouTube video on the HM305P/HM310P about changing settings and editing the XML files.Hope I save you hours of head scratching.

La compré en base a la recomendación de un colega, y estoy muy satisfecho, me deja mal sabor de boca la dificultad que hubo para conseguir los controladores de windows para esta fuente

Product pictures all showed a 220v version so I was concerned that was what I would receive. Being in the US I needed a 110v version. Took a chance and did receive a 110v version. Although I had to return the first one I received because it was defective. It worked fine below 9.5v but anything above that and the voltage would drop precipitously. The replacement unit is working fine though. Have not yet tried the computer interface though.