AIMS PowerPWRI150048S 48V Pure Sine Inverter, 1500W Continuous Power, 3000W Surge Power, 48V DC Input, Pure Sine Wave, USB Port, Triple AC Receptacles, On/off Switch, OVer Temperature Indicator

Bought especially because of previous review stating they were running fridge and window unit no problem, so far I can run one or the other even if I turn them on separately, both are low wattage units, I do need to get proper terminals for the cables 6 GA but nothing is getting hot running off 2 new exide 31 115AH batteries fully charged, took 2 days to charge, voltage well over 24v while running. Will update after terminals are installed could be the problem don't could it out yet. I am quite sure this thing has no surge power, maybe a solid inverter, but not for real loads.UPDATE-So terminals are soldered, didn't think it was going to fix it, but even with terminals soldered batteries still have a good decent charge, this won't will barely run the ac and the mini fridge together, you have to plug the fridge in, then turn the ac fan on, and then when everything is up to speed turn the ac compressor on, so to further test I hook a small heater with a 750w and 1500w switch. Won't even think about firing it up even switched low, 750, either I got a bad one or this thing is garbage. Let's see how the return goes.UPDATE-My replacement arrived today, inverter will now run my small heater on HIGH pulling 1400 watts continuously, now it will start both the AC and mini fridge at the same time no issue, this is what I paid for, now I'm happy.Make sure you put a serious load on these things when you get them to test them.

I did some quick testing on this inverter after receiving it. I'm using a 48V 14s e-bike lithium ion battery to power it for backup emergency power. It seems to have no trouble providing 1500W continuous output. It didn't even get hot enough to turn on the fans. It starts a refrigerator with no problems. So far, so good!

It worked fine for two months. It handled both my refrigerator in my freezer. I recommend it if you want to supply power during a power outage. But for an off grid system it will not be up to the challenge. My inverter stopped working after producing about $10 worth of electricity. I do not think it was worth the $249 I paid.

I've had this 48V PSW Aims inverter for almost 5 years. I use a solar PV array to charge up a 48V battery bank via a MPPT charge controller. This inverter has kept my fridge running constantly and I can run window AC unit in summer as well as smaller items at the same time. Very happy with this item for off grid solar. The low voltage alert is a helpful feature.

It worked great until I tried to put a 1000 watt load on it, it then promptly died!

I have been using the 24v 1500w version for 3 weeks now. I use it on my solar installation to power two small freezers and the light circuits in my house for about 12 hous per day. It inverter is on 24 hours but i have wired the charge controller to transfer the load to utility when the battery is 23v and on again at 25v (when the sun comes out). It has never faulted under this load. I will update if it fails too soon... The freezers seem to run quieter that when on the 50Hz utility. I

*Fingers Crossed* So far so good! Haven't messed with much more than 200 watts load yet, but it seems pretty decent. It was making a strange buzzing noise for the first few minutes after connecting and turning it on, also a high pitched frequency that I've either gotten used to or that cleared up as well. Seems to be pretty efficient, my new 24V system has been far nicer than I ever imagined getting away from 12V would be. Don't get confused or discouraged when thinking about turning your 12V 400Ah bank into 24V 200Ah, because the watt hours are the same and higher voltages are more efficient and produce way less heat! I'll keep this updated if anything changes.

I was using a 12v 210Ah system with solar panels @ 350W. Bought this inverter because my previous one, also AIMS, is amazing, 1000W (2,000 Peak) but it was 12v and that limits the amount of solar panels I could have on my office grid. I did the conversion from 12v into 24v, reducing my 220Ah into 110Ah, but increasing voltage. For some reason, now my solar panels now weren't charging fast enough the battery system (either that or the inverter was using more power than it was charging).Not really sure, even a local electrician (friend of mine) tried with the settings if the SRNE ML2440 Charger Controller to make sure the configuration was correct, we changed wiring for a 4mm size to reduce resistance, and still the system was underperforming. And I noticed the underperformance 2 fold. 1. More time to change the same batteries, and 2. Charge would drain faster with same load.This AIMS is great, but I do not think its the right one for a solar system. I guess its better to go with an inverter made for solar panels in mind.