EF ECOFLOW Portable Power Station DELTA 3 MAX with 220W Solar Panel 3400W X-Boost Output Ultra-Fast 0-80 Charging

Review: Reliable power station with fast charging. Perfect for emergencies and home use. Read more

What a perfect bundle. Solar generator with a sweet bifacial portable panel, perfectly sized. The panel is solid with a built-in quick stand, small enough to easily move and set up easily, but large enough to bring in the sun's rays quickly. The power station is a beast with over 2 kwh of capacity in a relatively small footprint. Built-in handles and quiet fans make moving and operating it a pleasure. While the Plus model is even more powerful, for my needs as fridge backup power, camping, and power tool usage around the yard, this model is great. The UPS feature is an added bonus, since I sometimes experience power outages, so wouldn't want my computers shutting down ungracefully. It's not lightweight, but far lighter than I expected for something this powerful (inverter) and high capacity. EF always knocks it out of the park with their design too. Great looking unit and capable. Read more

EcoFlow announced the Delta 2 power station at IFA Berlin 2022 with the tagline of: “Not Just a Battery.” It was available for purchase on September 16, 2022. After their excellent Delta Pro we reviewed not too long ago for our vacation home, we were very intrigued by what this new product could do, and how it would compare against Goal Zero and Jackery. We were impressed and highly recommended it. Three years later, we reviewed the Delta 3 (which now is called the Delta 3 Classic) and continued giving our recommendation. Now, the company has released the Delta 3 Max and we were more than happy to buy and check it out. I will also provide a brief summary for the EcoFlow 220W Bifacial Solar Panel at the END of the review. DIFFERENCES: Delta 3 (Classic) vs Delta 3 Max The Delta 3 Max provides double the battery capacity and 33% more output power than the Classic. The Max Plus (which we did not buy) could have its battery capacity expanded to 10,000Wh compared to the Classic's 5,000Wh. Both the Classic and Max still charge very fast from 0 to 80% in less than an hour. One should note that the Delta 3 Max Plus provides even more capabilities than the Max that we bought. Now on to a more extensive review of the Delta 3 Max. The Delta 3 Max's 2,048Wh battery capacity — how long something can run for — gives it double the runtime than 1,024Wh power stations that I consider to be the sweet spot for most consumers. Those include the Goal Zero Yeti 1000, Jackery Explorer 1000, and its own predecessor, the EcoFlow Delta 3 Classic. EcoFlow, Jackery, and Goal Zero have all witched from NMC battery chemistry to Lithium Iron Phosphate (LiFePO4). There are significant differences between both Lithium-ion (Li-ion) battery chemistries that I will detail shortly. How much energy a battery can store is measured in Wh (Watt-hours), and how much power is used or produced in W (Watts). EcoFlow, Goal Zero, and Jackery power stations can be used while simultaneously charging themselves. BATTERY TECHNOLOGY There has been a lot of debate on whether Nickel Manganese Cobalt (NMC) or Lithium Iron Phosphate (LiFePO4) is better. Both are Lithium-ion batteries. LiFePO4 is bulkier and heavier, and so why would one want them? They hold some important advantages over NMC: - Safer, less volatile, and thus cheaper to manufacture - Charge cycle: 1500-2000 (10+ years) -- NMC: 20-25% capacity loss after every 500 cycle (6-10 years for up to 2000 cycles, after which capacity is vastly diminished) - Usable in more extreme temperatures (-4F/-20C to 176F/80C). NMC: only 140F/60C max - Holds 350-day charge. NMC: 300 LiFePO4 batteries are less volatile (safer), more usable in extreme temperatures, and have a higher charge cycle count (battery lifetime) than NMC. CAUTION: Lithium-ion batteries do NOT like to remain discharged at 0% for prolonged periods of time. If you let your battery stay at 0% for too long, you may not be able to charge it again without specialized equipment. CONTINUOUS VS PEAK OUTPUT It is important to understand the difference between Watts and Watt-Hours. How much power is used or produced is measured in Watts, and how much energy a battery can store is calculated in Watt-Hours. See the “Calculations” section below for more details. How much energy a battery can store is measured in Wh (Watt-hours), and how much power is used or produced in W (Watts). - AC Inverter: Converts battery (DC) power into AC -- Delta 3 Max provides 2,400W continuous output with a 4,800W peak - Peak/Surge (Starting): Nearly every device initially draws extra power to turn on. The highest amount it pulls is the Peak. As long as that number is below 4,800W, it can be STARTED. Examples… -- Turns on OK (PEAK under 4,800W): --- Freezer starts at 400W (peak), runs at 150W once on -- Will NOT turn on (PEAK over 4,800W): --- Some very heavy-duty power appliance starts at (a made-up number since I don't know any that would use that much power) 5,000W (peak), runs at 2,000W once on Most devices power on at a higher (Peak) wattage than when they are already on (Continuous). Therefore, if its peak exceeds the power station's max, it may not be able to start - Continuous Output (Running): Once devices are on, as long as they keep drawing less than 2,400W total, they will stay ON until the battery runs out -- CONTINUES running (under 2,400W) --- 100W TV + 60W laptop = 160W -- COULD STOP running (over 2,400W) --- Temporary overdrawing beyond 2,400W for a few seconds is okay. A quality BMS will protectively shut down the battery if the surge does not end after a while. Regularly going over for a prolonged time can ruin the battery in the long run --- 1,000W machine (2,100W peak) + 300W appliance (500W peak) + 700W appliance (900W peak) + 800W appliance (1,100W peak) = 2,800W. Probably will stay on for a short period ---- Add 1,000W mower (1,400W peak) = 3,800W. Battery will definitely shut down CALCULATIONS The below calculations are rough ESTIMATES as conditions, battery quality, and age can vary. [SORRY: I had to shorten my original review by a LOT (including many calculations) so it could fit here on Amazon.] Time to Charge This 2,048Wh Power Station - Calc: Hours to charge battery = Battery capacity (Wh) / Input Wattage -- As battery approaches 75% full, the input charge will increasingly be slowed down to prevent overcharging - AC Wall: 1,800W @ 80 mins [2,048 Wh / 1,800W] - 12V Car Charger -- 120W @ 17.1 hrs (at 10A, if car supports it) Charge Time with Solar - Calc: Hours to charge battery = Battery capacity (Wh) / (Panel Wattage x [0.5 or 0.75]) -- In a perfect lab, solar panels charge at the listed wattage -- Expect to only receive 50-75% on a good, sunny day (ie. 75W – 113W for a 150W panel), depending on panel's age, component quality, and weather - 200W solar panel: as fast as 13.7 hours [2048Wh / (200W x 0.75)] -- Note that the Delta 3 Max can charge at up to 1,000W via parallel-connected solar panels - Underproduction: If a panel is not making enough, adding extra ones can generate a higher, combined output - Overproduction: If the panels make more than the maximum the power station charge port can take, only the max will go through Watts Used/Produced by a Device - Calc: Watts used or produced by device = Voltage x Amperage - Vacuum with 120V @ 9.5A uses 1,140W - Solar panel with 12V @ 10A can produce up to 120W Ideal Battery Power Station Size - Calc: Battery capacity (Wh) = Watts used by device x Hours needed for / 0.85 -- 10-15% of power is lost during power conversion - 45W car fridge needed for 8 hours: Minimum 424Wh power station (45W x 8 / 0.85) FINAL THOUGHTS EcoFlow thoroughly impressed us with their Delta Pro, Delta 2, and Delta 3 power stations and quickly added the company to our list of recommended battery providers. Their newest Delta 3 Max, still a LiFePO4 product, continues improving on the Delta 3 series with double the battery capacity, 33% more output power, and double solar input capacity. It continues charging from 0 to 80% in less than 1 hour, and to 100% in 80 mins total. We continue recommending the Delta 3 series without any hesitation. ECOFLOW 220W BIFACIAL SOLAR PANEL I had written a separate, detailed review for this 220W solar panel at its own Amazon product listing, and so I will provide just the conclusion from that review here. The Panel sparked my curiosity on how much better output a second set of panels built into a single product could provide. It did not wow me and required a specific, reflection-optimized environment to add any meaningful energy to the primary, front-facing panels. However, I still came away impressed because it had the potential to increase solar output for nearly the same price as Goal Zero's Nomad 200 or two Jackery SolarSaga 100. Higher-capacity solar panels like this one are essential to charging large power stations (like the Delta 3 Max this came with), especially if those batteries only accept a limited number of connected panels. The foldable design allows it to be set up and put away quickly and uses up a much smaller amount of space than rigid panels that are meant to be permanently mounted. However, it also makes it more susceptible to damage if the panels are bent at an angle of more than 30 degrees. Overall, I was very impressed by the solar charging efficiency the EcoFlow 220W provided to both the EcoFlow Delta 3 Max and Goal Zero Yeti 1500x batteries. The panel's 155W backside -- when deployed in an ideal environment -- is a welcome icing on the cake to provide just a little extra charging juice for the traveler or home prepper. Read more

I own a few of Ecoflow's power stations, and this is an awesome addition. Software is awesome, 2.4kw inverter runs most of my appliances. And the 2kwh capacity is perfect. And this is actually lighter in weight than its predecessor, Delta 2 Max. Despite the lack of extra battery capability, and only one solar input, the lower price reflects the subtractions and is perfect for those who don't need the extras. Read more

I got to say it's my first my using such item with the power outage in our country after the hurricane I loved this it charged fast by AC. However with the 220watt panel that was purchased with it it takes the hold day to give mi 30 percent the watt say 220 but it most I got was like 170 most n it need way more than that to charge it to full. Will keep updating you as I use. But overall love it to mi it's like a solar system just need a bigger panel than the one it came with my advice is buy the system only n buy panels separately Read more

Was not clear whether an Ecoflow Delta 3 extra battery could be added/ connected to this EF Ecoflow Portable Delta 3 Power Station Read more

After Hurricane Melissa, this product has really been a lifesaver. We live in Black River, Jamaica and I have a bit of normal. Thanks to this. I can plug my refrigerator for a few hours, use the washing machine and the microwave at times. Read more

The Eco flow Delta 3 pro Max is a high-performance, high-capacity portable power station designed for reliable power backup. Positive features: fast and flexible charging, 80% in 68 minutes, has three charging methods: with current, with solar power, or with a vehicle alternator Control it intelligently from an app on your mobile phone; it's portable and doesn't make noise while working. Things to keep in mind when recharging with solar energy: charging is slower, up to 4 hours Read more