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EF ECOFLOW DELTA Pro Ultra 6144Wh Power Station, 120/240V 7200W AC Output, Lifepo4 Home Battery Backup Expandable to 90kWh, 2H to Full Charge, Solar Generator for Home Use, Emergency, Camping, RV
Original price was: $6,299.00.$4,099.00Current price is: $4,099.00.
Best Selling
Specification
Overview
| Brand |
EF ECOFLOW |
|---|---|
| Wattage |
7200 watts |
| Fuel Type |
Electric |
| Power Source |
Battery Powered |
| Recommended Uses For Product |
Residential |
| Item Weight |
186.4 pounds |
| Voltage |
120 Volts (AC) |
| Output Wattage |
7200 |
| Special Feature |
Dual Voltage, Expandable Capacity |
| Included Components |
DELTA Pro Ultra Battery, DELTA Pro Ultra Inverter |
| Color |
Silver |
| Product Dimensions |
27.2"L x 18.9"W x 8.4"H |
| Model Name |
EFYJ751-BP |
| Engine Type |
4 Stroke |
| Total Power Outlets |
3 |
| Engine Power Maximum |
21.6 Kilowatts |
| Starting Wattage |
21.6 Kilowatts |
| Running Wattage |
7200 Watts |
| UPC |
842783132918 |
| Manufacturer |
ECOFLOW |
| ASIN |
B0CQXMZ5BK |
| Item model number |
EFYJ751 |
Stephen Cohrs –
It’s not just for emergencies. Much better cost/benefit than a generator!
This thing goes WAY beyond expectation! It automatically balances solar inputs and circuit outputs, charging the battery to peak and then shutting off the solar if you aren’t loading it with household circuits. If battery charge drops below your pre-set emergency battery storage level, it pulls electricity from the grid to fill in the gaps. You’re covered 24/7, one way or another. I’ve been eyeballing it and testing things and on a sunny summer day, overnight draws are replaced and the batteries topped off by noonish. Right now, my whole house is running through it with the exception of the A/C and the circuit that the unit is plugged into in order to draw grid power. I have more solar cells coming and a second battery, at which point I expect the electric company to start wondering why I’m selling them electricity but not buying any.
Amazon Customer –
I love my DPU EB
Our son is a huge ecoflow fan so he recommended for us to get the ecoflow delta pro ultra! He has an extra inverter so it turns out that all we needed to buy was the battery itself! It’s great since we got to save money instead of buying the whole system!The battery is very heavy but at 110lb or so we aren’t too old to move it quite yet! (In our 70s). Our son recommended us to use it to backup our refrigerator since we don’t yet have the smart panel installed so we can’t quite tie it into our home, and our HOA don’t allow for solar panels, but my son and I ran a test and this thing is running our refrigerator as we speak and it’s been two and half days! Still got around 7% left! It’s a game changer for retiree like myself because I travel a lot with my wife and often gone for weeks, so being able to back up my fridge for so long really gave me the peace of mind.I also own some rental property and to be able to power up a tenant’s home during an outage is also quite useful! Nothing make happier tenants than light and warmth.Lastly, my beautiful grandkids love to play with this big instrument. My naughty son even shove his sister away just so he can play with it. She keep saying “sheer!” I think she wants to play too.
KI Time –
Very Nice . . .
Excellent alternative . . . Three charging options (grid, solar, wind-tidal) . . . Possible compatibility issues when used with with SMART Meters that are configured to adjust potentials . . .
Larry L. –
It Works But With Serious Flaws
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.
DB –
Powerful and Easy to Use
I got the EF ECOFLOW Extra Battery for my DELTA Pro Ultra, and overall, I’m really happy with how smooth everything was—from delivery to setup. The packaging was solid and premium, which made unboxing feel good. Setting it up was super easy; it literally took just a few minutes to connect to my DELTA Pro Ultra inverter. It’s true plug-and-play—no complicated tools or settings needed. That’s a big win for someone like me who wants extra power without extra hassle. If you’re looking to scale your energy storage, this battery is definitely user-friendly once it’s in place.But here’s the thing—it’s heavy. Like, really heavy. I didn’t realize how much two people might be needed just to lift and stack it safely, especially as you add more units. I was surprised by how quickly the weight adds up. Once you go beyond four batteries stacked, the whole setup can start to feel top-heavy. ECOFLOW recommends wall anchors at that point, and after thinking about it, I totally get why. If the stack tips, we’re talking over 500 pounds crashing down. That’s not just dangerous for furniture—it could seriously hurt someone or damage flooring, especially if the surface isn’t perfectly level or solid. So while the tech is simple, you’ve got to plan your space carefully.Still, I can’t knock the performance. It gives me peace of mind knowing I’ve got serious backup power when I need it. It’s ideal for home backup, off-grid setups, or even heavy-duty job sites. As long as you respect the weight and install it safely, it’s a powerful, reliable upgrade. Just maybe keep it away from high-traffic areas and make sure your floor is strong enough to handle it.
Christina –
Brilliant addition to our battery powered backup system and Best feature was Black Friday savings of 27%.
Eric –
I recently purchased the Delta Pro Ultra (DPU) and have been thoroughly impressed with its performance and versatility. I had already a Delta Max and a Delta 2, and they have been rock solid, but I moved recently in a new home where water come from a deep well. We had a few power failures which made us a bit wary about having water available for a long time, and while I have a large 9500w Westinghouse gas generator, its not easy and convenient to setup, especially for my partner.Because this house had already a secondary panel with a Generator plug, setup was a breeze. I simply bought a L14-30 extension to connect the DPU to the generator outlet, and that it! The DPU is connected all the time, and in case of power failure my partner only need to flip the interlock! We had to use it a few time already, and it was a breeze!An unexpected bonus; I can charge the DPU from the side Input/Output port at 240v while still having all my AC output on. There has been some conflicting reviews stating it was not possible, but the confusion come from the fact that the C10 outlet use for 120v can actually support 240v as well. Note that you need to buy the Generator Adaptor for the DPU to be able to do this. I have done this multiple time already, and Ecoflow support confirmed this is support as well.I also appreciate the clean layout of ports, with a pair of backup UPS port (20ms), and another pair with Online UPS function (0ms). Unfortunately, the 240v outlet is designed as backup UPS (20ms), but its fine. I was aware of this fact upon buying. I like the app a lot as well.Finally, when I bought it a day before the prime day special back in June, Ecoflow was kind enough to refund me cash the difference between the price paid and the price on sales. Pretty awesome.Now, it is expensive, but honestly I have zero regret. Hard to get so much functionality at that price. For me, the Delta Pro Ultra is an outstanding investment for anyone seeking reliable power for home backup.Note: I heard a lot of stories about Ecoflow customer support. I have been lucky so far on my side, but only had to deal with them for a few technical questions and a refund. Note however that my setup is quite simply, and I do not rely on Ecoflow’s Smart Panel.
DM & TC –
Supposed to get a bonus gift with this purchase Phone Eco flow and they just wanted to argue with me so keep your $500 solar panel thanks
Alan –
Works great! even charges my Prius.
Salvador Ponticelli –
It’s too heavy for a single person to move it into a basement, but once in place, it’s really easy to install and setup. It’s really a solid product, well designed and built. I did some calculations, and I have little more than 24hours power backup for the essentials at home (fridge, gas water heater, internet)