12kWh Power Station: DELTA Pro Ultra with Extra Battery, 120/240V 7200W AC Output, Lifepo4 Home Battery Backup Expandable to 90kWh, Solar Generator for Home Use, Emergency, Camping, RV

Very well packaged, everything works as described. Have not gotten an outage yet but tested the system to run the fridge and all is good. Setup and application installation was straightforward. Updated the firmware and seems to hold charge very well.

Was delivered on time and was easy to assemble. Charged great, but did not include the 30 amp RV plug and 30 amp wall connection. Had to purchase separately.

I researched various backup scenarios and talked with a few solar contractors and implemented a partial panel strategy with this EcoFlow setup with a smart panel. I am a retired master electrician so I did the installation myself. I am impressed with the build quality and app functionality. Not so much with the documentation as it left several questions open on various ways to implement use of the equipment, such as various recharging methods. While several ways are mentioned the devil is always in the details. The docs strongly suggest using a qualified contractor to do the installation. So perhaps those questions could be answered as well as a consultation on equipment to use for a given strategy. All in all I am happy with everything. We will see in time if any problems develope.

Bought this with 2 batteries for vanlife. Got it on sale and used prime card for more savings. Works as expected, runs my window AC, air fryer and everything else fine. The only issue is that charging from an EV charger never reaches 7200w. It only goes up to 6100w. An extra 1200w would be nice, thats 10% of extra charge (since i have 2 batteries) per hour. Update: Been a few months now so... 1. The charge controller makes a clicking sound when it detects power from solar panels, not loud or obnoxious but something to consider i guess? It clicks on/off in the mornings and evenings due to low solar irradiation. 2. The battery level indicator is only accurate for a few days. I think the batteries have to be charged to 100% once in a while to keep it accurate. I currently have it set to max discharge 5% and max charge 95%. The amount of power I use from an EV charger and the percent on the display is off significantly, so when I notice that, i just charge it to full. 3. The LCD display is constantly turning off/on when power is being drawn or stops being drawn. I wish there was a way to permanently turn it off since I live in a van (soon a truck camper 😬) and the bright as light is annoying af. 4. The standby power consumption is consistent with some youtubers measurements. I'm estimating it to be 5-10% per day. That is a big deal for vanlife but the 2 mppts, AC and EV charging makes up for it. My next camper will probably have 1600-2000w worth of panels. I currently have 1040w which would be fine if I didnt run AC or electric heat but I spoil myself. 5. While driving, if your panels become shaded temporarily, the input will go to 0w before going back to normal. If you're in shade too long, say under a lengthy tunnel or bridge or a row of trees, the charge controller won't start charging immediately after you're back in the sun. It takes several minutes, I haven't timed it. This sucks. That's all I can think of for now, hope it helps. Update 2: I just realized the inverter spits out a ton of heat while charging. In my truck camper now and I find that it heats up the entire space really quickly. This might not be the best product for van/camper/rv living since the AC has to fight all the heat this thing produces. May be in the winter I'll have a different opinion...? Update 3: I noticed when charging, the battery % jumps from the mid 50% up to 70% or so. Kinda weird how it can be so innaccurate, even after the update that supposedly fixed the problem of it not displaying the correct battery level. Sometimes I feel like the battery % that's displayed is totally off...seems like a serious flaw when trying to run this on a small solar setup. When the battery level that's displayed is too low and it hits your max discharge level, you won't be able to use it even if you suspect the system is wrong. I'm thinking about selling this thing and going back to building my own system. 🤷 Update 4: Let the system drain to about 4% then charged it fully. It only charged ~8 KWh to get to 100%. Which means about 3500-4000Wh was left, likely in the second battery. The voltage reading must be off so that's probably why it thinks there's only 4% left. Such a disappointment.

Works great love it

This is a well-designed system. A key benefit is that it can accept 120 or 240 volts in the AC charging port and high voltage in the DC charging port, accommodating multiple types of solar panels, especially series-connected panels. Second, the system is modular, allowing for multiple inverters, each with a battery stack. Lastly, the inverter has very low noise. This is some sound engineering.

The EV chargers are broken in my area. I have read that the EcoFlow Ultra can charge a EV car battery off the grid. I have used the 120/240 volt port and the ev charging has failed. I can not charge my car using these 12k batteries, nor can I return these expensive batteries for a refund. The ev video is misleading, it shows the cyber truck being charged by the echo flow charger, connected to the batteries.

In my opinion, this is the best solar generator out there. You can add extra batteries to the system to meet your needs.