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EcoFlow Power Station EcoFlow DELTA 2 Max Smart Extra Battery
EcoFlow Power Station EcoFlow DELTA 2 Max Smart Extra Battery
EcoFlow Power Station EcoFlow DELTA 2 Max Smart Extra Battery
EcoFlow Power Station EcoFlow DELTA 2 Max Smart Extra Battery
EcoFlow Power Station EcoFlow DELTA 2 Max Smart Extra Battery
EcoFlow Power Station EcoFlow DELTA 2 Max Smart Extra Battery
EcoFlow Power Station EcoFlow DELTA 2 Max Smart Extra Battery
EcoFlow Power Station EcoFlow DELTA 2 Max Smart Extra Battery

EcoFlow DELTA 2 Max Smart Extra Battery

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    Estimated Arrival: Between May 27 and May 29. *ETA to USA Only

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    EcoFlow DELTA 2 Max Smart Extra Battery





    Double or Triple the Capacity of your EcoFlow DELTA 2 Max Power Station

    This supplemental battery enables you to effortlessly enhance the battery life of your DELTA 2 Max portable power station. 

    With just one DELTA 2 Max Smart Extra Battery you can expand your DELTA 2 Max power station capacity from 2048Wh to 4096Wh. Add 2 DELTA 2 Max Extra Batteries and you can expand your DELTA 2 Max capacity to a whopping 6144Wh. Now, you have the freedom to operate more devices and appliances without the concern of exhausting your power supply. 


    10-Year Long-Lasting LFP Battery

    Expandable LFP Battery Power Solution

    The EcoFlow DELTA 2 boasts a capacity range of 1-3kWh, whereas its counterpart, the EcoFlow DELTA 2 Max, comes equipped with an energy storage capacity of 2-6kWh. Both portable power solutions are designed to offer up to a decade of daily usage before their capacity declines to 80% of the original levels. This impressive longevity is due to the LiFePO4 battery chemistry, which allows as many as 3000 full cycles, and extends the life span of the battery 6 X longer. 

    Compatible with the EcoFlow DELTA 2 Max Portable Power Station

    The EcoFlow DELTA 2 Max portable power station is a powerful, compact, and highly efficient portable power solution designed to meet all your power needs. This robust power station has an impressive storage capacity of 2048Wh making it capable of powering 99% of appliances. Its smart solar charging capabilities allow for quick recharging, minimizing downtime, making it an excellent choice for off-grid excursions and home emergencies. This EcoFlow portable power supply station is upgraded with a LiFePO4 battery which can handle up to 10 years of daily use, and solar input up to 1000W. 


    EcoFlow DELTA 2 Max Portable Power Generator

      Buy DELTA 2 Max Here 

    The latest innovation in portable power is the ability to expand a power station's capacity to fit your energy storage needs. With the option to add up to two DELTA 2 Max Smart Extra Batteries, you can reach a capacity of 6144Wh. This makes it perfect for a variety of uses, from home backup to RVing, outdoor adventures, or even everyday use. Plus, its compact size makes it easy to take with you wherever you go.

    This EcoFlow portable power unit can keep up with your daily needs. With LFP battery chemistry, you can expect over 3000 cycles and up to 10 years of daily use before hitting 80% of its original capacity. Don't settle for less when it comes to your portable power needs.


    This portable power source boasts an impressive AC output, with the ability to reach up to 3400W of power in X-Boost mode. This means it can power up to 99% of home appliances, making it a versatile and reliable option. Power up to 15 devices at once, including 6 AC outlets, making it a convenient and efficient choice for all your power needs.


    This EcoFlow portable power station boasts the world's fastest AC recharging and X-Stream dual AC+Solar charging speeds, making it the ideal solution for those who need to charge their devices quickly. With up to 1000W solar input, it can charge in as fast as 2.3 hours, providing reliable and efficient power on the go.


    Turn this power station into a portable solar generator with an EcoFlow solar panel ( available separately) With a 99% MPPT efficiency, this technology maximizes solar generation at any time, ensuring that you have access to reliable and sustainable power wherever you go. A portable power generator with a solar panel is a smart investment for anyone who values energy independence and environmental sustainability.


    Portable power stations and solar generators do not burn fossil fuel, so with zero emissions or fumes, they are a clean, eco-friendly replacement for gas generators. 


    Without internal combustion engines, portable power stations and solar generators are extremely quiet. From a distance of approximately 20 inches, the noise level of a DELTA 2 Max power generator (low input and output of around 500W) is only 30dB, versus others portable generators with a volume of 45 dB or higher. In comparison, gas generators can run at an average of 70dB even from a distance. 

    Unlike gas generators, there is no fuel to refill, filters to clean, or moving parts to break. Without engine oil levels to check, oil changes. or spark arrestor inspections, you can spend more time on doing what you love. 

    Since portable power stations do not emit any fumes you can safely use your portable power source anywhere, inside and out. 

    Upgraded Inside and Out

    The upgraded battery lasts 6 X longer than other power stations with a similar capacity and output. 


    A built-in battery management system regulates vitals, including voltage, current, and temperature, keeping DELTA 2 Max safe, secure, and built to stand the test of time.


    With LFP cells, DELTA 2 Max is safe, durable, and highly efficient. A rubber anti-slip base and a highly-rated UL94-5VA fire-resistant casing offer multiple layers of protection.


    Made with a sturdy one-piece design, DELTA 2 Max is designed for the rough and tumble of portability. Each port is reinforced, protecting them against wear and tear.


    Even with its upgraded LFP battery, DELTA 2 Max is still 30% lighter than similar power stations on the market.




    EcoFlow DELTA 2 Max Extra Battery Warranty



    EcoFlow DELTA 2 Max Extra Battery Specs

    Capacity 2048Wh
    Input Port
    51.2V, 2000W Max
    Output Port 51.2V, 3200W Max
    Battery LFP chemistry, 3000 cycles to >80% capacity
    Dimensions 464 × 235 × 283 mm (18 × 9 × 11 in)
    Weight 19kg (42lbs)
    Compatible with DELTA 2 / DELTA Max 2000/ DELTA 2 Max


     What's in the Box?

    What's in the Box?

    EcoFlow DELTA 2 Max Extra Battery x 1
    Extra Battery Cable x 1
    User Manual x 1 
    Warranty Card x 1


    EcoFlow DELTA 2 Max and Extra Battery FAQ


    Q: Is the DELTA 2 Max Extra Battery compatible with DELTA Max and DELTA 2?
    The DELTA 2 Max Extra Battery is compatible with DELTA Max (2000) and DELTA 2.


    Q: Can DELTA 2 Max be used with the Extra Battery?
    Up to 2 Extra Batteries can be connected. It is compatible with DELTA Max Extra Battery. It can be expanded to 6144Wh at maximum.


    Q: Can you mix 2kWh and 5kWh LFP Battery modules?
    We don't recommend mixing 2kWh and 5kWh batteries, as this may shorten the battery cycle life.


    Q: What if the DELTA 2 Max cannot be charged?
    1. The charging temperature is too high. If you use high power appliances for a long time, stop using the product until the temperature drops. 2. The charging temperature is too low. Place DELTA 2 Max in a warm environment. 3. Check whether the input meets the specifications. 4. Check whether a charging limit is set. 5. In case of charging failure, try to change the charging method or charging cable.


    Q: What are recommendations for storage if the DELTA 2 Max is not used for a long time?
    1. Store the product away from water, heat sources, and metal objects. 2. To extend the battery life, it is recommended to use or store the product at ambient temperature from 20°C to 30°C. 3. For long-term storage, charge and discharge the product once every 3 months (firstly discharge it to 0%, then fully charge the device, and then discharge it to 60% for long-term storage); products not charged and discharged for more than 6 months will not be covered by warranty. 4. For safety reasons, do not store this product at ambient temperature higher than 45°C or lower than –10°C for a long time. 5. If the product is critically low on power and left unused for a long time, it will enter sleep mode and will need to be recharged before you need to use it again.


    Q: Is DELTA 2 Max Extra Battery compatible with DELTA Max and DELTA 2?
    The DELTA 2 Max Extra Battery is compatible with DELTA Max (2000) and DELTA 2.


    Q: Can I switch the frequency? How to switch it?
    It is not recommended to switch the frequency. If required, turn on the AC power supply, press and hold the AC output switch for 10 seconds to switch the frequency. (Do not switch the AC output frequency; otherwise, it may cause failure of some appliances.)


    Q: Is it also impossible to turn off the device while charging? Will it turn on automatically if it is off after powering up?
    In the off state, the product will automatically turn on after powering up. The device cannot be switched off during charging.


    Q: How to calibrate the SOC?
    Fully discharge and charge the battery for one time and then recalibrate it.


    Q: What is the battery type of the DELTA 2 Max?
    LFP battery. 80% capacity remaining after 3000 cycles.


    Q: What connection methods does the APP support?
    Bluetooth and Wi-Fi.


    Q: How many solar panels can be installed with the DELTA 2 Max, and what is the solar charging power?
    DELTA 2 Max has 2 solar/car charging input ports, with voltage range of 11-60V for each port, and maximum solar charging power 500W for each port. Each port can be connected to one 400W solar panel, or two 220W solar panels in series.


    Q: Can the DELTA 2 Max used with other ecosystem products?
    It supports WAVE and WAVE 2 portable air conditioners, GLACIER portable refrigerator,s and Smart Generators.


    Q: Can DELTA 2 Max be used with the Extra Battery?
    Up to 2 Extra Batteries can be connected. It is compatible with DELTA Max Extra Battery. It can be expanded to 6144Wh at maximum.


    Q: What are the weight and noise level of the DELTA 2 Max?
    Net weight: 23 kg. Within a range of 50 cm, the noise level is 30 dB when the input or output power is below 500W.


    Q: What is the capacity of the DELTA 2 Max?


    Q: Does the DELTA 2 Max support charging while using?
    Yes, power station supports charging and discharging when charging in vehicles, portable solar panel, etc. However, when the battery of the machine is low or is about to run out, it is best not to output while connecting to DC charging (solar/vehicle charging); at this time, if the input of the power is less than or equal to the output power, the device will continue to consume power, which may result in power loss and eventually damage the battery.


    Q: How do I access EcoFlow's EU Declaration of Conformity documents?
    A copy of the documents is available online at www.ecoflow.com/uk/eu-compliance


    Q: How long can the DELTA 2 Max charge my devices?
    The charging time is shown on the product’s LCD Screen, which can be used to estimate the charging time of most appliances with stable power usage.


    Q: How do I know if the DELTA 2 Max is charging?
    When it’s charging, the remaining charging time will be shown on the LCD Screen. Meanwhile, the charging indicator icon begins to rotate with the remaining battery percentage and the input power shown on the right of the circle.


    Q: How to clean the DELTA 2 Max?
    Please gently wipe it with a dry, soft, clean cloth or paper towel.


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



    Shipping and Returns

    Order Confirmation:

    As soon as you place your order, you will receive an order confirmation e-mail.  This means that we have received your order in our system and pre-authorized your credit card for the purchase.  As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment.  If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail.  If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment.

    Order Shipment:

    If your order is in stock and we process the charges to your credit card, it will ship within five business day ( most orders are sooner) from the date of your order.  We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at support@PortablePowerPlus.com



    We want you to be HAPPY! Please reach out prior to ordering so we can help you make a great purchase decision.  We are proud to offer FREE SHIPPING to our customers but if you decide you no longer want your item after it has shipped, you can request a full refund within 24 hrs after placing your order. If you request a cancellation after 24 hrs and before delivery, you will be charged a 25% restocking fee and a transaction fee (2.6% for credit card users, 3.6% for PayPal users, and 2.9% for Shop Pay users) plus shipping for delivery and return. Orders purchased greater than 30 days can not be cancelled. 


    Returns are accepted within 30 days  of the item being delivered. Return service is only available for US orders. You must be in possession of the order items.  Please call us at 980-758-0075 or email  support@PortablePowerPlus.com to register return and receive an RMA (return merchandise authorization) number and directions for the return. NO RETURNS WILL BE ACCEPTED WITHOUT AN RMA. 

    You may be charged a 25% restocking fee, delivery fee may be deducted from your return, and you may be responsible for shipping your return, based on individual manufacturer policies. Please reach out to us if you have questions prior to purchase.  


    When shipping your return

    Product must be in original packaging and include all manuals and accessories
    Please provide your invoice with the return. Write your unique RMA on your invoice as well as the return shipping label ( MUST be clearly marked on the outside of the package) You must ship within 5 days of receiving your RMA number



    Please inspect the packaging of your item(s) when they arrive, if you notice any damage you should make note of it when signing for delivery.  If your item(s) do arrive damaged, please send photos to support@PortablePowerPlus.com along with detailed description.W e will work with the manufacturer to get a replacement sent as soon as possible. If you choose to not accept the replacement you will be responsible for the shipping both ways as well as the restocking fee of 25%. Please note we must be notified within 30 days otherwise you will have to go through the manufacturer’s warranty for replacement. 

    Shipping and return policies will vary by manufacturer.



    After your return is received and processed, we will issue your refund within 14 business days, and you will be notified with an email once your order is refunded.
    If you don't receive the refund after 14 business days, please contact us at support@PortablePowerPlus.com




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