EcoFlow DELTA 2 Portable Power Station with 1-3kWh Expandable Capacity, LFP Battery, Fast Charging, Use as a Solar Generator for Home Backup Power, Camping & RVs

Review from an off-grid user based in the UK - power your CPAP using the sun! My primary use for this Portable Power Station was to power an NHS provided ResMed Air10 Autosense CPAP machine. After extensive research I was still unsure as to which power station to go for until I contacted EcoRiver for their recommendation on which one would meet my needs. They recommended this one - and being much more powerful and more expensive than the original one I was looking at I was initially a bit skeptical. However this machine is the minimum you need to power your ResMed Air Sense 10 Autoset on AC power (it is more efficient to power it using the 12V DC to DC converter, available from ResMed, but as far as I know this option means the humidifier function on the CPAP machine does not work as it needs more than 12V). Using this machine I could power my CPAP machine on AC power, just like at home, for two nights without recharging, using the humidifier function. However I used EcoRiver's excellent 400W solar panel (which I will review separately) to recharge it every day, meaning I had tons of extra power left over. This machine can easily power a toaster or microwave and can even power a powerful mains powered GHD hairdryer for a short time. DOMESTIC KETTLES NO - TRAVEL KETTLES AND LOTS OF OTHER THINGS YES! It would NOT be able to power a domestic voltage AC kettle as these use typically 3000W for a short time - when off grid in my view you're better off using gas to boil water rather than a domestic kettle - though it will easily power travel kettles, full domestic power AC toasters, lower wattage travel toasters, and all manner of other gadgets. It goes without saying that if you're planning to use lots of high wattage tools for a long time you will need an even bigger battery but for phones, tablets and laptops this machine more than has you covered. At times during a recent camping trip it was fast-charging four phones simultaneously. SILENT CHARGING FROM THE SUN! Before I bought this device we had to rely on a petrol powered 1800W generator to recharge things and use a TV in the caravan, which is loud enough to be pretty antisocial not to mention the fumes. Using this battery paired with a 400W EcoRiver solar panel provided free, silent power. Even on heavily overcast days with light rain, the panel was still providing 40w input power, which would recharge the battery over 6-8 hours from 50% full. In direct bright sunshine, the panel once recharged the battery from flat in two hours, which is an amazing amount of power. MAINS AC RECHARGING IN BAD WEATHER/WHEN MAINS POWER IS AVAILABLE This battery can recharge off a normal mains AC outlet, drawing 1200w, in about 50 minutes, using the provided kettle-style lead. Fairly loud fans kick in to cool it during this which is reassuring. This was a great feature off-grid as during one period of intensely heavy rain and dense overcast lasting two days I ran the battery flat and was able to recharge it using the AC outlet of a petrol generator in less than an hour. This is an amazing piece of kit and the accompanying app for iPhone is very clear. It was great to be able to check the solar charging was working well and how much power was flowing in and being used simultaneously. It is worth every penny. Buy it.

This is an amazing piece of kit that requires a detailed review ! Having recently heavily researched Solar power generation due to the massive increase in energy prices i decided to spend some of my hard earned cash in this technology to see how well it performed. I initially purchased a 537wh Bluetti EB55 along with a 200w solar panel. Whilst this performed well i was disappointed at how quickly the battery drained with medium draw appliances, and the fact the Bluetii display was information poor, ie no exact battery percentage or estimated time of power draw left. I also only wanted a LiFePO4 battery due to the serviceable life of these batteries (3000+ Charges/Cycles) compared with standard lithium ion batteries which are only around 800 cycles. The market was very limited for these type of devices, hence why i choose the mid-range bluetti. I did rush into this purchase and kind of regret now understanding watt hours and power draw. After a few days of use and a lot more research it did get me hooked on the future of this technology and the fact i could harvest free energy from the sun. As a direct result of my first experiment i did some more research and found that ECOFLOW were releasing a LiFePO4 generator - so i decided to invest some serious cash in the Ecoflow Delta 2 and pre-ordered. The ECOFLOW Delta 2 is a lot bigger than my Bluetti, however it does have around twice the battery capacity and additional power outlets. When it arrived my first impressions was that this was a very well built premium bit of kit. Turning on the device i noticed that it was around 38% charged so i immediately connected it to my 200w solar panel. The day was fairly cloudy was intermittent brief sun, after a few hours i managed to get the battery up to the mid 50's. I wanted to test this device with 100% storage power so decided to connect it to my house mains to charge the remainder of the battery. Although i never intend to charge this via mains electricity i wanted to test the quick charging functionality for emergencies. The first thing that i liked about this over the Bluetti was that there was no external charging brick (that's a huge drawback for me when i do a direct comparison) the Delta 2 just has a standard kettle lead which you plug directly into the unit and the mains. Within a couple of seconds of doing this the fans for the unit kicked in - wow they are loud and powerful. I have uploaded a video of this so you can see how loud this thing is when AC charging. The unit drew between 1kw and 1.2kw of electricity from the grid, and wow this thing can charge fast! 0-80% in 50 mins! As i already had over 50% charge it didn't take long to reach 100% capacity - the unit lowers the charging rate +80%, and the fans slow down somewhat - but you can definitely still hear them. When charging via Solar the fans were not nearly as loud. You have an option in the app (more about that later) which allows you to limit the AC Charging rate, which in turn should lower the fans. Included with the device is an MPPT to 12v car charger so you can also charge this device from your vehicle. Now for the power test! I wanted to see if this unit could power my UST Projector, and if so how long for. Plugging in my projector the display showed a power draw of 312w, this meant i would be lucky to get 3hrs from the unit which wasn't ideal. I therefore lowered the brightness of my projector down to 50% and this increased the draw time to 5.5hrs. I was super happy with that! We used the unit all evening to watch TV on our projector and the battery was down to 7% - i was super impressed. Over the next few days i did a ton of more tests on this device and all impressed me. I loved the fact that the display showed me the exact battery percentage, the power draw from the devices and the remaining time. Using the USB sockets on the front of the device i was able to charge all of our smaller gadgets like phones/iPad's etc. I even asked my partner to power their two work laptops from the Delta 2, this also worked fantastically. With lower powered devices you could get several days use out of the Delta 2. A rough calculation of the usage time compared to the 1024kwh battery worked out to around 84% during my real word tests - this is relatively standard across the battery generator range when allowing for Inverter draw and displays/wifi etc. The Delta 2 also has pass through charging which allows you to solar charge and draw power at the same time. Over the weekend we had some fantastic sun, and all of my Delta 2 energy was drawn from my solar panels - i have now upgraded to two panels to increase the charging times. The Delta 2 at it's peak was drawing +300w from my panels in bright sunshine. The charging time for this was showing around 3.5hrs. I am confident in the summer months i could easily draw 1kw and fill the batteries in just one day of sun. The device has 4 x 3 pin UK AC Sockets on the rear, along with the MC4 solar input connection and the AC Kettle plug for AC charging. Here you will also find a reset button should you ever need to use it. Also on the rear is a 12v cigarette input and 2 x DC5521 barrel inputs. On the front of the device is a lovely crystal clear LCD display which shows you a wealth of information such as time to charge remaining, time of discharge remaining, watts in and watts out and a very clear battery percentage. You also have 2 standard USB a sockets 5v 2.4a 12W max, 2 USB A Fast Charging Sockets 5V, 2.4A / 9V, 2A / 12V, 1.5A, 18W Max, and two USB C sockets 5/9/12/15/20V, 5A, 100W Max which support super fast charging. The USB C sockets are powerful enough to use and charge my laptops at the same time. Each group of inputs has an individual on/off button to switch on that part of the inverter. Individual control is better as this will save unnecessary battery drain. Another huge benefit of owning this device is that it is also Bluetooth and Wi-Fi compatible. You need to download the free ECOFLOW app and this allows you to see input/output rates on your phone even when you are away from home/the device - it's basic but works well. I loved the fact i could be at work and check the solar wattage going into the device! It was kind of addicted. The app can sometimes mess up and not update correctly, but i am hoping this can be fixed in a software/firmware update - which incidentally can be sent to the DELTA 2 via your phone/tablet! The DELTA 2 can handle devices up to 1800w with a surge boost of up to 2400w. This enables this device to power pretty much any standard electrical appliance plugged into it and it will work, albeit perhaps at a lower wattage if the appliance likes this, ie heat guns etc. The device also has a built in UPS so that if your mains powers goes out then the device will switch over to carry on powering your devices - it does have a few milliseconds' delay (unlike my purpose UPS device) but for most electronic equipment this should be fine. It also output a true sinewave, so sensitive appliances like computers etc would be fine with the Delta 2's power supply. Solar input maxes out at 500w. You need to be super careful if you are connecting this to multiple solar panels though so that you do not go over the voltage which maxes out at 60V 15A. Before you invest in solar panels always check the Open Circuit Voltage (OSV) of the panel to ensure it is within the range of 11-60v, one panel will be fine but adding multiple panels can take you close to this range if not over - you should always allow a 20% threshold too for cold sunny days. Working out solar compatibility is a bit of a minefield, but after weeks of research i believe i now understand the basics. To help you if you connect two or more solar panels in parallel with a Y adapter then the voltage of the panels remains the same but the amps are added together, if however you connect in series (positive to negative leaving only two MC4's) then you need to add the voltage of all your panels together and the amps/current remains the same. Thus, be super careful not to exceed the specs of the Delta 2 or you could seriously damage it. So in summary would i recommend this device - without hesitation YES! This technology is still super expensive, however it is an absolutely amazing product i really wish i had found this product before i purchased my Bluetti - it excels the Bluetii in every single way! To generate free electricity from the sun is fantastic, but to store it to use later is beyond amazing. This little guy does it all and does it very well... excellent storage capacity at just over 1kw of electricity (Around 28p at time of writing this review) truly portable - weights around 12kg, but has great handles to distribute the weight evenly, you can even add the battery expansion pack to take this up to over 3KW! Firmware updates are provided via the app to the device so it stays current, fantastic detailed display which is easy to read even in sunlight, great phone app, fantastic selection of power ports, fast solar charging, super fast AC charging, expandable up to 3kw with the additional battery pack, 8.2yrs of daily charging before battery depletes to 80% capacity & to top that ECOFLOW offer a full 5yr guarantee. I honestly can not recommend this product enough if you want to invest in a small solar energy setup - purchase cost to payback would work out at around 10yrs (excluding solar panels and wiring) with current energy prices at 0.28p per KWh, however this isn't all about money, this device is about emergency power, portable power (camping etc) being more green and protecting the environment. I genuinely love this product and wish i had purchased this before i wasted money on my Bluetti. I intend to save up to buy the add on battery pack... but rather disappointingly that may be a while yet! I hope that you found my review helpful.

The Delta 2 is cheaper, lighter and both more powerful and easier charged than its predecessor. We have one in our Motorhome and it has made off grid so much easier and pleasant. It will power the Moho as a single entity replacing Electrical Hook Up (EHU) if you want or you can power individual items including microwaves and coffee machines. Recharging it is easy, we have a 220 Ecoflow solar panel that can be put out for charging swiftly in sunlight, or charge via your normal 12v cigarette lighter socket when on the move. If on an EHU it’s very quick to recharge and you can set the input level so as not to trip the site electrics if need be. We have just used it for a month away in Spain and Portugal and spent half our nights off grid in beautiful locations with the capacity to live as if on a site with full EHU. It can also power the fridge but probably for 6 hours max whilst receiving a good solar recharge from the panel at the same time. Two coffees on a Nespresso machine is about 7% of capacity, 25 minutes solar or driving and it’s back to full capacity. Great bit of kit and portable to another Moho or easily lent to a friend as oppose to fixed lithium battery systems.

I recently decided to enhance my fishing trips with the acquisition of the EcoFlow DELTA Power Bank coupled with the 200W solar panel, and I couldn't be happier with the decision I made. Starting with the DELTA Power Bank, it is indeed a powerhouse that seamlessly backs up all my devices without any hiccups. The capacity is monumental, allowing me to recharge multiple devices numerous times over. Moreover, the array of ports available ensures that I can charge virtually any device, enhancing its versatility exponentially. The fast-charging feature is another boon, recharging the entire power bank in under two hours — a feature I find indispensable when I'm on a tight schedule. The 200W solar panel is a revelation in itself. It’s not just a power solution but a sustainable one, allowing me to harness the sun's power to fuel my devices. This has significantly extended my ability to stay off the grid while keeping my essentials powered. I set it up beside my fishing spot, and it silently does its job, making sure I am never left powerless in the great outdoors. Furthermore, I admire the build quality and design of both the power bank and solar panel. They have weathered several fishing trips now, facing both moisture and dust, and have showcased remarkable durability. The compact and portable design does not take up much space, which is vital when you need to carry a lot of fishing gear. But it’s not just about power; it's about the peace of mind these products bring. Knowing that I have a reliable and sustainable power source allows me to focus on the joy of fishing, capturing great catches on my phone and sharing the moments live with friends, with no worry about depleting my battery. In conclusion, the EcoFlow DELTA Power Bank and the 200W solar panel have proven to be the ideal companions for my fishing adventures, combining innovation with reliability and sustainability. It’s a purchase that I am delighted with, and would highly recommend to fellow anglers and outdoor enthusiasts for a worry-free and powered outdoor experience. I am giving this combo a well-deserved 5 out of 5 stars

I had put off in the past getting one of these 'power stations' as I felt they were not quite 'there'. Well I now feel they have finally got up to speed with this fantastic device! The number of different uses for the EcoFlow DELTA 2 is staggering! From workshop tool use, power supply backup, garden use to camping and motor homing this very clever device handles it all. I like the Bluetooth communication between the app you can install on your phone and the DELTA 2. You can keep an eye on all of the ins and outs of power and more using the app. Charging is a breeze with this Power Station with several options available including mains charging (very fast), Cigar socket while driving and Solar Panel (can use several different types) I actually charge mine while off grid in my motor home by plugging the car charging cigar cable plugged into a 12v cigar socket output from my leisure batteries which are in turn charged from my fixed solar panels on the roof, this works very well! When charging via 12v you can also choose charging input levels of 4, 6 and 8 amps so as to not over tax your 12v charging option. If I ever get the chance to try their extension battery which you can purchase to plug into the main unit to increase the amount of capacity I will post an honest review, but sadly I can not at this time afford the purchase. I would recommend this fantastic Power Station!

Have had this (and the extra battery) for a couple of weeks now and have done some basic testing. I bought this as insurance against possible power cuts coming up this winter, and with the extra battery this should allow me to power a PC for 4 hours so that I can continue to work... or watch TV for a couple of days! Pros: Came quickly, packaged nicely, seems sturdy. Display makes sense (once you've tried it in different configurations) and it's simple to use. Just plug in your appliance(s) and press button on back and appliance works. Plug ecoflow into wall, switch on and it charges. Use the App and you can change the rate of charge. All in all a simple operations. Annoyances: First annoyance was opening the manual and seeing that the saftey instructions warn that if used to power a fridge then power fluctuations might cause the ecoflow to shut down. Thats obviously annoying since if power was off for any length of time the powering the fridge would be very useful. It also tells you to contact them if you have pacemakers, hearing aids, or implants before you use it. Not a problem for me (yet) but seems like they should state that more clearly when purchasing! Charging noise: It's very loud when charging - even when the charging rate is turned down to 200W. Running noise: When trialled with my TV at about 95W, the unit is silent for most of the time, but every 10-15 or so minutes the fans turn on for 30 seconds or so. It's reasonably quiet and you can live with it, but obviously it would be nice if it was completely silent when pulling gentle loads. In fact the the fan does go on and off even when nothing is being powered / charged. UPS capability: I've tried using the system as an UPS (e.g. ecoflow powered from mains and device powered from the ecoflow, so that if mains dies the device continues uninterrupted) to power flat screen TV plus BT box plus ethernet hub. On switching off the mains, the BT box seemed not to notice, but the TV went into standby and then rebooted. This means I'm not sure if I can use it as an ups for a PC (or two) and am wary of testing it out. Perhaps getting a cheaper, low power UPS, to place between the ecoflow and pc might provide a high power UPS solution without costing the earth. Niggles: 1. Whilst trialing this I put it next to my TV and found that turning the AC output on/off was really tricky since where I'd put it it was difficult to reach the AC on off button at the rear of the unit (epecially with the extra battery on top). Be nice if that button was on the front. 2. Why no timer? It would be useful to control when the ecoflow charges so that you can charge on an economy rate, or, as in my case, charge when Its likley my solar panels are producing excess power. One way around this is to put a timer on the mains but it could have been useful it was in built. 3. Why does the app need me to have bluetooth and location switched on? Location burns my phone battery and I have no love for any app that needs to track me so if so i want to use the ecoflow app I have to turn location on and then off afterwards. So when all is said and done, this is still a pretty amazing kit. It is expensive but seems better value for money than other similar units. Come the summer I will be able to charge it for free with my excess solar power, and hopefully find a suitable location for it to power stuff in the evening. However I don't think I'll ever recover the cost of purchase, but it will be nice to be partially immune from power cuts.

This unit has surprised me, I was not sure if it would be powerful enough for the kit I needed to run of it - computer, three screens, router, speaker and a 500watt heater. It has coped very well with plenty of power to run it all minus the heater for most of the day and with the 400watt solar panel it runs it all for the day. The heater knocked it down to 1 hour, but with the solar (running at 250watts on average) it in fact lasted more than 2 hours - enough for my needs. However, as it is expandable, if I need the heater for longer I will just expand the system. The fan is silent when using less than 100watts (ie when everything is on standby) but when using the heater which draws 500watts the fan kicks in as is quite noisy. This unit is definitely value for money, well made, light enough to be portable, plenty of plug options. Would definitely recommend.

After researching different power stations, we decided to go with the EcoFlow DELTA 2. We wanted something with a large power capacity, and something portable, for use in our motorhome, and have been testing it out over the last couple of months. So far we have been charging the children's laptops, phones and gaming devices, running a fan heater, toaster, tv's and more, proving the EcoFlow DELTA 2 to be very versatile for household items, and invaluable when off grid whilst camping. It's great how simple it is to use for the whole family. We also wanted something that we can add to in the future, and this ticked all the boxes. We are extremely happy with our purchase and would definitely recommend the EcoFlow DELTA 2 to anyone. Alongside the EcoFlow DELTA 2, we also purchased the 220 Watt Bifacial Solar Panels, for charging when we are off grid. They too have been brilliant, and we are really impressed. They charge the battery quickly and easily, so we would definitely recommend them too, alongside any power pack. To sum up the EcoFlow DELTA 2 - Fantastic product, versatile, well built and built to last, so a big thumbs up from us all.

Si funciona para lo que se diseñó.

Es recomendable, sobre todo ahora que hay apagones de luz. Tiene multienchufes para poner ventilados. Cargar celular prender una lámpara de luz etc

recomendado

Excelente respuesta del equipo cumple lo establecido

ES BUENA Y PRACTICA PERO NO DURA LO QUE EL MANUAL ESPECIFICA