EcoFlow EcoFlow DELTA MAX Portable Power Station - eBike Haul
EcoFlow EcoFlow DELTA MAX Portable Power Station - eBike Haul
EcoFlow EcoFlow DELTA MAX Portable Power Station - eBike Haul
EcoFlow EcoFlow DELTA MAX Portable Power Station - eBike Haul
EcoFlow EcoFlow DELTA MAX Portable Power Station - eBike Haul
EcoFlow EcoFlow DELTA MAX Portable Power Station - eBike Haul
EcoFlow EcoFlow DELTA MAX Portable Power Station - eBike Haul
EcoFlow EcoFlow DELTA MAX Portable Power Station - eBike Haul

EcoFlow DELTA MAX Portable Power Station

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    EcoFlow DELTA MAX Power Station 

    Backup your home during power outages with DELTA Max. With an expandable capacity that reaches up to 6kWh, dual charging, and the ability to power your home devices, you can stay powered on in any situation.

    Expandable Capacity

    Dual Charging

    Power Multiple Devices

    800W max Solar Input


      *Please NOTE: This item is only applicable to orders in the US (except Alaska and the Virgin Islands).


      Expandable home backup power

      A single DELTA Max unit packs a 2kWh capacity that is expandable up to 6kWh with DELTA Max smart extra batteries. This means when a blackout hits, you can continue to power your important home devices such as your fridge and lights for hours on end.

      Convenient and fast dual charging

      DELTA Max charges up safely and rapidly from 0-80% in just 65 minutes. And it gets even better. If you’re looking for an even faster way to charge up DELTA Max, you can combine AC with the smart generator to get up to 3400W, AC with solar to get up to 2600W, or the Smart Generator with solar to get up to 2600W.*

      Power 99% of your home devices

      With EcoFlow’s X-Boost technology, DELTA Max can power heavy-duty devices up to 3400W. That means during a power outage or blackout, you can continue to power your fridge, dryer, and more. That’s the industry gold standard for a portable power station of this size and capacity.

      Harness the power of the sun

      DELTA Max connects with up to 2x 400W EcoFlow solar panels to deliver 800W Max solar charging speeds. With a voltage range from 11-100V and the MC4 connector, you can also connect other solar panels to your DELTA Max. Even during cold or cloudy days, our smart maximum power point tracking (MPPT) algorithm automatically detects voltage and current in real-time to give you optimum solar generation throughout the day.

      Emergency backup power

      Disasters can occur at any time of the year, sometimes lasting longer than we ever expected. When extended blackouts hit, the EcoFlow Smart Generator serves as an emergency option that integrates with DELTA Max. It auto-starts when your DELTA Max hits a low level of charge, recharges your DELTA Max, and stops the engine all by itself once your DELTA Max hits a full charge. This gives you a reliable emergency backup option that relies on minimum use of a generator.


      Control, monitor, and manage your energy use

      Control and monitor your DELTA Max with the EcoFlow app. Dive into the settings to customize your power use or control DELTA Max remotely.


      Multiple ways to charge

      There are multiple ways to charge DELTA Max wherever you are. If you’re at home, plug into an AC wall outlet or solar panels. If you’re out and about, charge DELTA Max in your car or use solar panels if you’ve set up camp. In extreme emergencies during power outages, connect the DELTA Max to the Smart Generator for a last-standing power source.


      Car Charging

      AC Wall Outlet Charging

      Smart Generator 

      Solar Charging

      Net Weight: Approx. 48lbs
      Dimension: 19.6*9.5*12 in
      Color: Gray & black 
      Capacity: 2016Wh expandable up to 6kWh with DELTA Max smart extra batteries
      Shelf Life: 1 year (after fully charged) 
      Life Span: 800 cycles to 80% capacity
      Extra Battery: Support up to two DELTA Max Smart Extra Battery/Smart Generator
      Battery Chemistry: NCM
      Max Devices(s) Power Supported by X-Boost: 3400W
      AC Charging Input: 1800W Max, 15A
      Solar Charging Input: 800W Max, 11-100V, 10A
      Car Charging Input: Support 12V/24V battery, 8A
      AC Output : 6 outlets, 2400W total (Surge 5000W)
      USB-A Output : 2 ports, 5V, 2.4A, 12W Max per port
      USB-A Fast Charge : 2 ports, 5V, 2.4A / 9V, 2A / 12V, 1.5A, 18W Max per port
      USB-C Output : 2 ports, 5/9/12/15/20V, 5A, 100W Max per port
      Car Power Output : 12.6V, 10A, 126W Max
      DC5521 Output: 2 ports, 12.6V, 3A, 38W Max per port
      Connection: Wi-Fi

      *DELTA Max needs to be connected to the DELTA Max Smart Extra Battery for dual charging.


      Please use the AC Charging Cable included in the package for fast charging. Do not use other cables to charge. Plug directly into an AC wall outlet and make sure that the wall output current is more than 15A. Otherwise, reduce the unit charging speed with the AC Charge Speed Switch. EcoFlow takes no responsibilities for any consequences caused by failures to follow instructions, including but not limited to charging with other AC charging cables.

      Q & A

      Q: How many solar panels can I use at the same time with DELTA Max?

      A: It depends on the total voltage and watts of solar panels you choose. As long as the solar panels use MC4 connector and its voltage and current are under 11-100V, 10A max range


      Q: What are the input for DELTA Max?

      A: When charging DELTA Max and its extra battery together, you can reach 3600W max charging speeds by combining any two methods of AC, solar and Smart Generator. For DELTA Max single unit, you can recharge it at standard wall outlets (1800W max), or combine AC and solar charging to reach max 2000W charging speeds.


      Q: How does the Emergency Power Supply (EPS) work? And how fast is it?

      A: When your portable power station is plugged into the wall, any electronics plugged into it are powered from the grid and not its battery. When power from the grid stops, as in a blackout, the power station automatically switches to battery power within 30ms.


      Q: What is the water-resistance rating for this product?

      A: DELTA Max is not water-resistance, so it should be kept away from liquids. Or if you're looking for water-resistance solution, you can purchase the DELTA Max case to water-resistance protection.


      Q: What is the charge time 0-80% using ONLY the single AC input, no dual modes? What is the time to 100%? Assume no load on the battery while charging.

      A: If you want to charge DELTA Max (US version) using only AC it will charge from 0-80% in 65 minutes and it will charge from 0-100% in 1.8hrs. 


      Q: Can you use this in the house?

      A: Yes. Because it is solar powered, there are no fumes. 


      Q: What is the power of the Delta Max without the X boost?

      A: DELTA Max's AC output is always fixed at 2400W total (Surge 5000W) for the US version, whether X-Boost is turned on or not.
      X-Boost doesn't increase the AC output of DELTA Max. X-Boost lowers the voltage to be able to run the devices that require more than 2400W but not more than 3400W.
      Please keep in mind that X-Boost is not applicable for all electrical appliances; it’s incompatible with appliances with strict voltage requirements and appliances with voltage protection (such as precise instruments)


      Q: How long does it take to charge with each solar panel?

      A: If you are using EF110W solar panel we don't suggest you use 1 or 2 sets of it as it will take a very long time to charge the unit fully. We suggest using minimum 3 sets. If you use 3 sets of EF 110W solar panel it will take 7.5-15 hrs, and if you use 4 sets of EF 110W solar panel it will take 5.6-11.2 hrs.
      As for using EF160W solar panel to fully charge the unit, if you use 1 set it will take : 17-34 hrs, if you use 2 sets it will take : 8.5-17 hrs, if you use 3 sets it will take :5.6-11.2 hrs, and if you use 4 sets it will take : 4.2-8.4 hrs.
      Lastly if you choose to use EF 400W solar panels, we only suggest to use 1 or 2 sets but not more than that as it doesn't support more than 2 solar panels input. Using 1 set of EF 400W solar panel will charge the unit in: 6.3-12.6 hrs, and using 2 sets will charge it in : 3.2-6.3 hrs.
      Please keep in mind the solar charging time provided above is only applicable to EF solar panels and if you are using a different band of solar panels the timing will vary.


      Q: How many (and which type) of solar panels would you recommend for the Delta Max? Two? Or more?

      A: For the fastest charging time, we suggest 2 sets of EF 400W panels, as they will be able to charge it within 3.2-6.3 hrs. Using one set of EF 400W panel will double the time to 6.3-12.6 hrs.
      But you can also use 3 sets of EF 160W which can charge the power station within 5.6-11.2 hrs. or use 4 sets of EF 160W to charge within 4.2-8.4 hrs.
      You can also consider using 3 sets of EF 110W panels (7.5-15 hrs.) or 4 sets of EF 110W panels (5.6-11.2 hrs), but it will take more time to fully charge the power station.


      Q: How long is the life expectancy of the battery’s?

      A: DELTA Max has a shelf life of 1 year (after a full charge), which means that if you fully charge it and just turn it off and leave it without using, it will last a year without loosing its capacity. As for its cycle life, it's 800 cycles to 80% capacity


      Q: Does the Delta Max have UPS or EPS capacity to operate in the event power goes out?

      A: DELTA Max can function as EPS, so when you connect the grid power to the AC Input Port of DELTA Max through an AC Charging cable, you can power electrical devices through the AC Output Sockets (AC power will come from the grid and not the power station in this situation). In case of a sudden blackout, the product can automatically switch to the battery powered supply mode within 30ms. Please keep in mind that this a basic UPS function, this function does not support 0ms switching. Please do not connect the product to any device that requires 0ms UPS, such as data servers and workstations

      Q: What’s the difference in the delta 1300 and the delta max?

      A: DELTA Max has a higher capacity (2016Wh) and AC output (2400W total) than DELTA (1260Wh). Also DELTA Max support Wi-Fi and dual charging, which mean you can connect it to the EF app to control it and you can use 2 different input methods to speed up its charging time. But DELTA doesn't support Wi-Fi nor dual charging. 
      DELTA is smaller and lighter than DELTA Max, so it's easier to move it around.
      Both DELTA and DELTA Max have NCM batteries, with 800 cycles to 80%+ capacity.


      Q: Is the battery plain lithium or a LiFePO battery?

      A: DELTA Max's battery is NCM (Lithium nickel manganese cobalt oxides).


      Q: Will the EcoFlo Delta Max power up a 5000 BTU window a/c or a small space heater?

      A: Yes, 5000 BTU uses 300 watts on low and 580 watts on high. It will pull “surge” 1000-1200 watts when the kompressor starts up in 120 Degree Weather, with 50% Humidity. 


      Q: How many charge cycles with Ecoflow Delta Max? . Can a battery be added? Charge time of 80% from zero?

      A: DELTA Max has 800 cycles to 80% capacity, and you can add DELTA Max Smart Extra Battery to it. If you recharge it through its AC input then it goes 0-80% in 65 min,0-100% in 1.8 hrs (1800W Max) for the US version. And it goes 0-80% in 80 min,0-100% in 2 hrs (1500W Max) for JP version. And it goes 0-80% in 1 hour,0-100% in 1.6 hrs (2000W Max) for 220-240V version

      What’s in the box

      1.DELTA Max 2.AC Charging Cable 3.Car Charging Cable 4.Solar Charging Cable 5.DC5521 to DC5525 cable 6.User Manual

      Delta Brochure Pdf


      Please note that the warranty period may vary according to local laws and regulations. Some countries, states, and provinces do not allow limitations on how long an implied warranty may last, so the limitation described above may not apply to you. You may have other rights from state to state or by province or by country. 


      All EcoFlow products purchased on come with a limited warranty (“warranty”) as set out below. BY USING THE ECOFLOW PRODUCT YOU ARE AGREEING TO BE BOUND BY THE TERMS OF THE ECOFLOW LIMITED WARRANTY. 

      We provide a limited warranty for purchases on The warranty period is measured starting on the date the original consumer purchaser received the products. 

      Warranty Timeline


      Warranty Period (Months)

      R600/R600 Max/R600 Pro/EF-1500*


      DELTA **/RIVER/RIVER Max/RIVER Extra Battery/RIVER Pro/RIVER Pro Extra Battery


      RIVER 370/RIVER 412/RIVER 500


      110W Solar Panel/160W Solar Panel/85W Solar Panel/21W Solar Panel/60W Solar Panel/50W Solar Panel


      River Bank/Rapid Power Bank/Rapid Plus Power Bank


      Cables/Chargers (inside the package/sold separately)


      *For RIVER series Kickstarter backers, EcoFlow offers 36 months warranty.

      **For DELTA Kickstarter backers, EcoFlow offers an exclusive lifetime battery warranty. Kickstarter backers will need to cover the freight fees if the batteries need to be replaced. 

      Exclusions and Limitations

      This warranty does not apply:

      • Non-quality related issues;
      • Items purchased from unauthorized resellers;
      • Purchases without valid proof of purchase;
      • Items that have been refunded;
      • Items that have expired their warranty period;
      • Any defects or damages caused by misuse of products, unauthorized modification, disassembly or operation not in accordance with the official instructions or manuals;
      • Any defects or damages caused by exposure to excessive heat, liquids, or other external causes;
      • Any defects or damages caused by reliability or compatibility issues when using unauthorized third-party parts;
      • Lost or stolen products;
      • Free products.

      Valid Proof of Purchase

      • Order number of purchases made through
      • Sales invoice or order confirmation email that clearly shows the description of the product, its price, and sales channel.

      Most of our products have an over 12-month warranty. Because most shipping information cannot be found online after 6 months the transport ends (if the original purchaser can’t find it online),  the warranty period is measured starting on the date of purchase by the original consumer purchaser. We will extend the warranty period for you by one month. 

      How to claim your warranty?

      Step 1

      Claim your warranty on : 

      (Find Your Product's Serial Number:

      Step 2

      Contact EcoFlow Customer Service Team at or +1 (800)-368-8604.

      Attach a short video to show the issues. 

      Step 3 

      While the Customer Service Representative processes the claim, you will receive a Return Material Authorization (RMA) form.

      If your item is eligible for EcoFlow Warranty Policy, you will receive a prepaid shipping label*. Please follow the instructions on how to properly package and return the item safely. Please follow the instructions above before you ship out the products.

      *Please note that we can only provide prepaid return shipping labels for return packages in the U.S. and Europe. For return in other countries and areas, please contact our Customer Service Team at for more details.

      **Instruction on how to properly package and return the item safely.

      Step 4

      EcoFlow will proceed with replacement 15 business days* after confirming that the defective item is received at our warehouse. The final resolution is subject to the availability of the replacement items.

      All replacement items will follow the same warranty time frame of the original defective item or 3 months after being replaced, whichever is later.

      *Please note that delivery is subject to changes caused by force majeure.


      Thank you for visiting and shopping at  aims to offer you the best shipping options. 

      Shipment processing time

      All orders are processed within 3-5 business days. Orders are not shipped or delivered on weekends or holidays.

      If we are experiencing a high volume of orders, shipments may be delayed by a few days. Please allow additional days in transit for delivery. If there will be a significant delay in the shipment of your order, we will contact you via email.

      Shipment to P.O. boxes or APO/FPO addresses ships to addresses within the U.S., some of U.S. Territories (Please consult Sales@ before ordering) and does not ship to P.O. Box and APO/FPO/DPO addresses.

      Shipment confirmation & Order tracking

      You will receive a Shipment Confirmation email once your order has shipped containing your tracking number(s). The tracking number will be active within 24 hours. Most EcoFlow packages are shipped via UPS or FedEx. You could contact FedEx: 1(800) 463-3339 or UPS Domestic: 1-888-742-5877 for further shipping information. The estimated delivery time is 7-10 business days.

      Damages is not liable for any products damaged or lost during shipping. If you received your order damaged or lost your package, please contact us within 20 days at

      Return & Refund


      Customers can request a full refund within 24 hours after placing an order on Please note that we will charge a transaction fee if you apply for the refund after 24 hours and before delivery (2.6% for credit card users, 3.6% for PayPal users, 3.5% for Affirm users). Orders purchased after 30 days could not be canceled.


      The return service is currently available to US orders only. If you want to return the product, please pick up the package first. Then register your order in our return center ( to obtain a shipping label. To avoid paying high, please note that a double shipping fee may be deducted from the final return if you directly reject the products.  

      For the return of US orders, we'll charge the transaction fee (2.6% for credit card users, 3.6% for PayPal users, 3.5% for Affirm users) + shipping cost. For quality issues, we will give you a full refund or one-time free replacement after you receive the goods. 


      After you returned the product to our warehouse, we'll issue the refund within 14 business days, you'll be notified with an email once your order is refunded.
      If you don't receive the refund after 14 business days, please contact us via

      Please follow the 3 steps to process your return

      ◆ Step 1: 
      Register your order in our return center: 

      ◆ Step 2: 
      Our Support Team will determine whether your order is eligible. After confirming that your order is eligible, they will give you a Return Material Authorization (RMA) number and provide you with a prepaid return shipping label (label to be determined by the support team). They will also provide instructions on how to properly package the product to return it safely. This is incredibly important. Do not ship the product until you have received the proper safety directions on how to ship the product. You must clearly mark the RMA number on the package and include your proof of purchase date with the product. 

      ◆ Step 3: 
      EcoFlow Tech will process your return or warranty according to the return or warranty policy. 
      For more details, please refer to our EcoFlow Lithium Battery Return Instruction :

      Please DO NOT return the items without the RMA confirmation from the EcoFlow Customer Service Team.
      For return without confirmation, the refund or replacement may not be processed.

      Return Shipping Cost

      We will charge you the shipping fee under these circumstances: 

      • If you cancel your order over 24 hours and within 30 days without any reason, we'll charge the transaction fee (2.6% for credit card users, 3.6% for PayPal users) + shipping cost.
      • Any defects or damages caused by exposure to excessive heat, liquids, or other external causes.
      • Any defects or damages caused by reliability or compatibility issues when using unauthorized third-party parts.
      • Any defects or damages caused by misuse of products, unauthorized modification, disassembly, or operation not in accordance with the official instructions or manuals.


      Shipping Cost



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        Customer Reviews

        Based on 1 review
        Sharon G.
        Delta Max and Extra Battery

        I purchased the Eco Flow Delta Max and extra battery to provide reliable backup energy for my family. It is everything they say it is: powerful, well made and simple to use. The people at Ebike Haul were very accommodating of my needs and even allowed me to change my entire initial purchase to a different model without question and even honored the discount they were offering that did not go thru on my original order. I am very happy with my experience with Ebike Haul and look forward to additional purchases in the future.