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Awesome review Jason. Really great data and presentation! I agree with the tweaks you made to the rating system, that's super helpful to people shopping for units.

Great review, been considering this unit, used the promo code and ordered today with a bonus waterproof bag at no charge. Perfect for camping and hurricane back up to power the fridge.

Another great review Jason! :) And it wasn't too long at all. A really well made and in depth video. Just what someone needs to see before buying a power station like this. Looking forward to more ecoflow products getting the LifePO4 makeover too.

Thank you Jason, love your product reviews. More power to you.

Very thorough review! Thanks!

Thanks for the review df the Delta 2. The fact that it has more than three thousand charge cycles is more than enough reason for me to acquire one.

I like these reviews you do, very helpful. Thanks

Fantastic review, many thanks 😊

Excellent review; thanks for explaining the lack of independent charging for the extra battery at the 19:00 mark. An area for improvement for EcoFlow on an otherwise good product

Thank you!!! You just informed an informed buyer.

Excellent, thorough review. While you said this was a long video I prefer this to a five minute cursory introduction to a $1,000 device. Earlier this year our power was out for almost 18 hours. No AC, no fans, no cooking. I looked at a Milwaukee battery powered fan and that was about $100. A Delta 2 seems like a bargain in comparison since I can run a fan, use a kettle and an induction cooktop. Coffee maker too.

Just like everything else, power stations keep getting better and certainly more expensive. I like that it's lightweight!! I can pick it up and put it where I want it. That's a plus for me! Thank you for the review, Jason!

Excellent job. You keep adding new angles in your reviews and I love it. I have been waiting for this unit for awhile. One disappointment is the 60V solar limit. Bluetti had a similar issue with the EB150, then they released the EB240 and raised the voltage a bit. EcoFlow should have made it something like 66V or 70V. In any case, small complaint for a nice unit.

Very nice that's it has lifepo4! This is more than likely be my next solar generator purchase. These power stations are collectibles with so much utility lol

VERY WELL MADE REVIEW, FULL OF INFORMATION. VERY HELPFUL. THANK YOU 10/10

Great review. Very in-depth! Thank you!

Got my Delta 2 and solar panels this week. Love that's its expandable to over 3,000wh plugging in the Max battery.

Great review thanks so much! About to purchase on Amazon with $250 discount & free waterproof case… this will reduce some anxiety once I receive it. World is getting crazy!

Eco Flow Delta 2 is going to sell all they make! Thank you for the review. I congratulate Eco Flow for getting a 9.5 out of 10 score. Finally, I want to say good for Eco Flow to refer to one of its features as an EPS (Emergency Power Source) and not UPS (Uninterruptable Power Source).

Thank U Jason Good to see EcoFlow Move over to LIFEPO4 Take Care Mate

This is really good well rounded review!

Love the video this eco-flow is everything I wanted too bad I just purchased the blue Eddie Max 4 months ago but my next power station will be this eco-flow thank you again I can't wait for your next video

excellent review.

There are 3 tubers I follow you included and on the other channel the computer turned off, the relay switch used on the Delta 2 was not fast enough to use as a UPS. Interestingly all 3 of you loaded up the videos today. Just FYI, I understand that if one also owns the Delta Max and you own the expansion battery you can use that battery on the Delta 2. Love your videos and great job on this one too. Keep up the good work.

Excellent review with good flow.

Love your videos. You should add points for warranty and customer service.

They finally went LiFePO4!! I think now that they are at the 'standard' (at least for people in the know who are researching), their other value adds (fast charging, 1800W inverter, expansion, backwards compatibility) put them above the competition. They are back on my radar! Thanks for the review, Jason!

Hey Dr J' Very, very good information! Ecoflow is constantly updating their products and I appreciate your prompt dropping of these types of review videos. I think this is the combo I would like to use for our home backup system but the way my checking account is set-up 🤣😂

FYI: the idle power consumption for the DC output is actually about 3 watts or ~0,3% per hour. The SoC meter just doesn't register it so you could end up with an empty battery a couple of weeks while the Delta 2 is still indicating 100%. Same goes for low power solar charging. If you only input a couple of watts, the SoC stays the same. This has thrown me off the loop a couple of times until I figured it out. I suppose the current shunt isn't accurate enough to produce enough voltage drop at such low currents.

I do like the fact that it has around 15 outlets which I can use all at the same time.

Really enjoy your videos. I’m looking at buying a portable power station to power my Snomaster CL56D fridge/freezer. I will have it in my work truck and I am trying to figure out the best way to charge it while I’m driving. The fridge does allow you to have both AC and DC connected, but will default to AC power if connected. If I’m right I could use the portable power station to charge while driving while running the fridge off AC power on the pack. Once the truck is shut off the power pack will disconnect from charging and the fridge will switch to DC power in the power pack.

Thank you for the review. I’m an energy minimalist doing most cooking via 12v and charging with 200watts solar. My only concern is having repaired under warranty.

Excellent review

Great video Jason!

Great video as always! I have a suggestion for a future tests. For solar applications it's crucial to have a good round-trip efficiency in addition to a good inverter and dc circuitry efficiency. Could you also measure the total input energy in kWh needed to charge a solar generator fully? Putting a power meter between the solar array and the MPPT controller input would help in sizing the array. And while you're at it, why not measure the input energy while charging from AC with the Kill a watt you use for inverter output efficiency tests?

I really like that point about the extra batteries just being a way to expand capacity and nothing else. No way to charge or use outside of the main device. I had the idea that, on my Delta Pro, I could use the extra battery to bring outside and charge via solar during the day then bring it back inside to keep the main battery going at night but you can't do that. Shame cause, if you want to use the Delta 2 or Delta pro as your main station and keep it in a specific spot, it could be hard to bring out to wherever power is coming unless you get longer cords or have a setup already installed or something. At least with the Delta 2, it's a looooot easier to carry around, lol. Thanks for the video!

Looking through the spreed sheet I didn't see a column related to expandability via additional batteries. That for me would be very helpful as I can take head unit for camping and use expanded setup for more of home backup system if I can add enough batteries. Great videos.

We just purchase this unit. We did have the cord for the solar panels included. Thank you for your detailed review. I am trying to learn how to get the best use from this power station before we actually need it. God bless you.

I'd like to see the River Pro and extra battery in Lifepo4. As always love your content.

thx a lot❤

I have the River Max and the River Pro with the extra battery, I will be adding this one to my collection in November, that is when I will have enough money saved for it . 😎😎

Awesome review Jason really well done. Looks like a great unit. Wish the UK price would come down a bit though, 1100 pounds here. Maybe they will try selling combo's for cheaper. Cheers

🐾🐾😎thanks Jason

This is SO useful. Just found your channel. OUTSTANDING review and comparisons to competing brands. Excellent spreadsheet. Liked and subbed! PLEASE can u compare AC200Max to the Delta Max?? :) :) TWO RIVALS so very similar in WH and price. :) :) (edited: i just realized the Delta Max is not LFP…aka 1/3 life…forget that) Thx Jason!

Jason after consideration about how I use the delta 2. I have decided that for my purposes, the extra battery would be a waste of money. So I'm buying a second delta 2 instead. Basically we only spend time in two maybe three rooms in the house. Two of those rooms are side by side. The delta 2 can run everything in the kitchen except the range. Out the other one in the master bedroom. I can't do that with the extra battery. If I ever decide to get a transfer switch to run house. I'll be purchasing a larger unit with expandability. Oh and the two rooms next to each other are kitchen and den. The only we run in den are TV and a couple of lamps. What say you.

Thanks for sharing this. I have been looking at this and saw another review where the EPS could not keep the computer running during failover. I'm curious now why that is. I'll be looking into this as it might make a good solution for the home office as well as keeping our fridge running during a power outage.

Positive Comment!!!

Will sending back my new bluetti eb70s and get this one.

Very good review my friend. Very impressive product. One question, it would be nice if I could charge my 48 volt e-bike battery from DC and or use the e-bike battery as an expansion module to this one. That would give a multy purpose use to both devices. Depending on the need at the time. Because the e-bike charger can only do 2 amps.

30ms delay on transfer switch is too long. Hopefully they can address with firmware update. Great review as usual.

Hi Jason, thanks for your informative video! #Greatness! I just received my Delta 2 and wanted to use it for a back up here in Florida during the lightning storms. Specifcally the EPS MODE, do you think it's okay if i leave this plugged in 24/7 for that reason? Would that be wasteful in any way? I plan to keep my office plugged into it, including the router, all the time. I appreciate your suggestion, thank you!

I’d like to see it power a home refrigerator and large basement freezer

Note the solar cable they sell is XT60 (yellow) only support 8A, you need XT60i (orange) for 15A which they don’t sell it.

That Delta 2 is indeed a game changer with a short 80 minute charge time. It is actually the fastest charging power station I have ever seen.

Very nice Overview and good information on Details, thanks! Just one question: the two 12VDC 5521 outputs are rated to have 3A max current, your measurement was 120W output what means 10A. You know the reason for the Differenzen? Anyway I ordered one, looking forward to have it in my Handy!

Excellent review! I will seriously consider getting one. As usual, I am extremely disappointed in the liar-label on capacity, but it otherwise appears to check all the boxes, including the 500W charge rate on solar.

Great review. Looks like a very good product. Like the fact they finally went to Lithium Iron Phosphate. One question. What is the power limit of the UPS mode? I assume it is the same as the power charging as plugging it in to the AC outlet. Please verify this. Thanks.

Thanks for great content whats your take on Jackery explorer 1500 ?

Super review like always and super product! Do you think that can be recharged with one Sp200 bluetti panel? And if yes, which cable is necessary? Thanks in advance!

Will the XT60 solar cable for the EF River Pro work on this one or is it to light weight of wire for this one?

Nice unit but think the loud fans and slow "UPS" is a turnoff.

@Jasonoid - Solar Power, Batteries, and More Thanks! Great Review! So many choices, now! Smh! They are spitting these generators out like candy! Of the Bluetti, Zendure, and this one ... which one do you think is the best for the money? Your opinion of course ... nothing official?

This looks like a good pick for long term. Will you be doing a review of the Anker 757?

Hi Jason. Another good review however I don't see a link to your comparison chart in description or comments, is the link available?

Do you have to use the Delta 2 or Max battery, or can you use something else? I saw a review the other day that left questions on those batteries. Thx!

I'm very likely buying this power staton for charging my e-mountain bike for camping and hunting. The TWO reasons are: 1.) the LFP battery with greatly expanded cycle life over Li-ion stations. 2.) its companion battery expansion, ALSO with LFP battery technology. This expansion battery is mainly for home emergency use. I plan to charge this when camping/hunting with an Off Grid TREK solar blanket draped over my MAZDA CX-5 windshield and roof with the DELTA 2 locked inside the trunk while I'm away from camp. In the evening I'll simultaneously re-charge my E-MTB's 2 batteries in its patented single charge port.

Excellant reviews. I see there is a sale on this and can get it with the 220W Bifacial solar panel. Do you have a better recommendation for a portable panel to use with this? And are there any issues with cold weather usage? Thanks

Maybe the fan speed is set for the highest ambient temperature environment it is rated to work in. Perhaps in more temperate climes it could be reduced.

Hey Jason bought delta 2 so far I’m happpy with it. I plan on buying extra battery after I save up some more cash. I have 2 200 watt newpowa panels. I would like to set them up outside in my yard but can’t figure how to get solar cables inside my house to charge delta.2. I don’t won’t to cut hole in my wall. I do have hole in my floor with an old satellite cable runs thru. Think I might be able to get one cable thru but probably no way for two. Got any suggestions

Do you still have to switch the device on manually even though the connected solar panels are supplying electricity?

We are looking for a system like this that will run a well pump. Something that can be expanded. Your thoughts on the options out there. Preference on bluetti, ecoflow or others. The easiest for beginners. Thanks for you time and input

I really really need one bad ! But living on a fixed income I need something that good but cheap ! But this seem to be a great product.

Nice upgrades - still not a fan of the case design, one of reasons I purchased a bluetti was it's box/hookups. 😊

I want to buy the fridge.

I think I prefer two delta mini vs 1 delta 2. Similar price on ebay

I have the Delta 2 with the extra battery. I have it set up to power most of my household electronics and it is connected to 2 solar panels that keep it pretty well juiced. Do you recommend this set up for regular or long term use as a method to reduce overall grid costs?

I need more than 1 cigarette plug. Can I use a double cigarette plug in one for this?

Great review Jason. Im having trouble deciding between one of these with the additional battery or just going with the Delta Pro. Can you offer any advice as to why I should go with one over the other? Thank you and keep up the great work!

Wow thanks for doing the noice test.

Hi, (sorry for my English)I have delta 2 unit with the extra battery. I used this unit almost every day about a month now and all worked fine. I charged from solar and the extra battery charged up to 100% without problem, but the main unit stopped at 84%. I tried to charge from mains as well and the same. The charge/ discharge level is on 0-100% so shoudn’t be problem. I try to use my tv from ac to take out some charge, but only charged back to 84%. After that switched off the unit and just disconnected the extra battery and I planned to discharge the unit to 0% but the last 1% lasted forever, So I tried to recharge the main unit from main now and hoped will go through on 84%. The main unt said on the screen Will be fully charged just in 25minutes from 1%, charged with 1000watts. Successfully was able to step through the 84% but when hit the 90% suddenly jumped to 100% and stopped charging. What can be the problem? I’m able to use the full capacity off the battery or something went wrong with the battery or the controller software? Thanks for the help

Hi all, So....I have a hack that I literally just thought of for people who can't afford another Delta Pro or extra battery BUT need additional power and own another ecoflow battery. I have called ecoflow and given them the idea as well and they confirmed that it will in fact work!! I then asked them why they don't tell everyone after I've told them and they said they would "escalate the idea" to their top tier and perhaps add it to their FAQs. So here's the idea: We've been told that you must have like systems in order to use them together. This is NOT actually true. If your Delta Pro is low on power (or any other ecoflow system you have) you can simply plug its charging cable (in the rear) into the front of the secondary system. In other words you're using the second system as a wall outlet of sorts. This works especially well in the evening when the sun is down and there is no more backup energy. What do you do when the sun is up?...even better...plus the second system from the rear into the front of the Delta Pro. This allows the sun to charge them BOTH regardless of the differences of their capacities or sizes!!! The only word of caution they gave me after saying what a great idea this was, was to say don't forget to lower the charging speed on the Delta Pro once it's plugged into the front of the second system. Guys this means you can use anything from a River and up to charge your Delta Pro OR any other ecoflow system. If this works for you please like my comment and say "Thanks T!!" just so I'll know at least I was able to communicate something helpful to the solar community-especially since these systems are sooooo expensive!!

Great video, thanks, just purchased a Delta 2 and Delta max. Does the Delta 2 have auto shut off? I want use it for camping with a cpap.

Can you charge 2 extra batteries and then add a fully charged extra to a unit that is partially charged? I’m thinking of buying another extra battery for my Delta 2.

It would be handy if the Ecoflow App had a charging history / graph - a bit like the ones you get on the Victron app. Especially when you're using the bigger systems like the Delta Pro. It's just nice to be able to monitor your solar input and power draw over the course of a day / week. I've asked Ecoflow to add it to their app but do you think it would be possible to connect something like a Victron monitor / shunt to my solar panel and to my Ecoflow, so I can see the charging / solar history, etc? I know that probably seems like overkill, but it's the only option I could think of until Ecoflow give their app an update :)

Jason, I’m curious if your default AC setting was at 50Hz, mine was, so I changed it to 60Hz by holding the AC ON/OFF button for 15 seconds per a Reddit post and it worked perfectly

I would have given it a .5 point for the UPS. they don't call it a UPS because of the 30ms time it takes to switch over and Hobotech had issues with it working as a UPS. Otherwise I agree with your score .

I was wondering if the firmware updates have improved the UPS Mode Under 20MS test on the Delta 2? I know it helped on the Delta 2 Max...

Can this be connected to a generator panel to switch over?

Hi Jason, quick questions. I am in the process of building an insulated shed on my backyard to store my tools. I have a decent amount of power tools: drills, lawn mower, weedwhacker , blower, and would like to install a lighting. Do you think a EcoFlow would be able to power all of those items or should I look for a different option? Thank you

I have the older 1260Wh version and was using it as a ups for my computer. I had shut the computer off so no power being drawn, but left the ecoflow plugged into the wall outlet. The unit got hot the cooling fans kicked on and the battery dropped to 95 percent. The manual I noticed states not to leave plugged in unattended. Is that the same for the Delta 2 model?

Excellent review! Love your videos! I just bought a Delta 2 and finding it quite noisy, just running a TV at 100w and the fans flare up. Didn’t have this with my EB70. Do you know if there’s a way to stop this? On the latest firmware. Thanks, Bri

The fan noise is not a deal breaker, especially when the fan noise scales downward when charging/discharging with less watts

No idea what is inside the case of the Delta2 or the extra battery, but it would be awesome if the Delta 2 could use a 200 ah LiFePO4 like the SOK unit, or if they made a larger battery for power outages.

It’s also able to plug in a generator and if there’s no solar then at. 20% the new generator will start. If you’re solar available it will change.

Can you use the LFP back up battery on previous lithium ion delta battery generators?

The best update they could do on this is to allow two units to be connected together...that would be a game changer...!

Also pity it doesn't have dual charging so you can charge of solar via DC input and add another array via the AC input. If it have a power brick then you could do this.

19:01 they did get it with the original EF-1500 external battery, it is a beast and still rocking away at my place. Regarding : When powering a large external load, will the load be shared between the two batteries so their cycle life is protected?

i like the ecoflow delta but the cons are, it has only one DC output which is limited to 12v /10ah ,which is good to have 2 DC OUTPUT 12v 30ah in order to run dc fridge,dc fans etc the ups is mode is the second con,not good enough