The Delta 2 Max extra battery has now completed my power outage protection. I am worry free from an extended outage and can keep my living area running while in comfort for more than 8 hours. Great addition to our comfort.- Cheryl B.

EcoFlow DELTA 2 Max Smart Extra Battery

Name: EcoFlow DELTA 2 Max Smart Extra Battery
Brand: EcoFlow
SKU: EFDELTA2MaxEB
Price: 699.0 USD
Availability: InStock

by EcoFlow

SKU: EFDELTA2MaxEB

$1,399.00

$699.00

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Free 30-Day Returns

✔ 100% Free Shipping
✔ Authorized EcoFlow Dealer
✔ Manufacturer Warranty Included
✔ Questions? Ask a Power Expert >>

EcoFlow DELTA 2 Max Smart Extra Battery Overview

Double the runtime of your EcoFlow DELTA 2 Max Portable Power Station with this add-on battery that plugs into any DELTA 2 Max. Add up to two DELTA 2 Max Extra Battery units for a total capacity of 6144Wh.

EcoFlow DELTA 2 Max Smart Extra Battery Features

Convenient Recharging

DELTA 2 Max and its Extra Battery charge and discharge in unison. Whether you’re recharging DELTA 2 Max from solar panels, AC outlets, a vehicle, the Dual Fuel Smart Generator, the DELTA 2 Max Extra Battery will recharge alongside.

Independent in Emergencies

The extra battery even recharges directly from EcoFlow’s Smart Generator without DELTA 2 Max. That’s more recharging options to fit any situation.

Easy to Use LCD Screen & EcoFlow App

Get all the info on battery percent, time until full, time until empty, and more on the DELTA 2 Max Extra Battery LCD screen. Check the battery’s status anywhere on the EcoFlow app.

What's In The Box

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

EcoFlow DELTA 2 Max Smart Extra Battery Specifications

Weight	Approximately 19 kg (42 lb)
Dimensions	464 × 235 × 283 mm \| 18 × 9 × 11 in
Capacity	2,048Wh
Extra Battery Port Input	51.2V 2,000W Max (X-Stream and solar dual charging)
Extra Battery Port Output	51.2V 3,200W Max
Battery Type	LFP
Cycle Life	3,000 cycles to 80% + capacity
Protection Type	Over Voltage Protection, Overload Protection, Over Temperature Protection, Short Circuit Protection, Low Temperature Protection, Low Voltage Protection, Overcurrent Protection
Optimal Operating Temperature	20°C–30°C (68°F–86°F)
Discharging Temperature	-10°C–45℃ (14°F–113°F)
Charging Temperature	0°C–45°C (32°F–131°F)
Storage Temperature	-10℃–45℃ (14°F–113°F) (Optimal: 20°C–30°C (68°F –86°F))

EcoFlow DELTA 2 Max Smart Extra Battery Manual

EcoFlow DELTA 2 Max Smart Extra Battery Manual

Is Outbound Power an Authorized Dealer?

Yes! Outbound Power is an Authorized Dealer for every single brand and product on our store.

How long will it take for my order to arrive?

Shipping times vary depending on your location and the product or products ordered.

Order Processing Time
Most products are processed within 1-3 business days. If there is a delay in processing your order, we will alert you with as much information as possible about what to expect.

After order processing is complete, you will receive tracking information to monitor your order while it is in transit.

Order Shipping Time
Following processing, it may take between 3 and 8 days to arrive, depending on your location.

Please refer to the product page for your item and reference the estimated delivery time frame for more details.

Additionally, you can see the estimated delivery time frame during checkout and receive a tracking number once your order ships.

What are your shipping rates? Do you offer free shipping?

Everything on our store ships for free. Really!

What is Outbound Power's return policy?

Most items may be returned within 30 days of delivery. Please refer to our Returns & Exchanges policy to determine what items are eligible. Returns are not accepted beyond 30 days following delivery.

Are Outbound Power products used/old/refurbished?

Everything sold on our website is brand-new.

Do you price match?

No — we price BEAT! Please refer to our Price Beat Promise for full details.

Fast Delivery at a Great Price

My batteries arrived quickly in perfect condition. They had the best price to boot too.

Hi Wayland,

Thank you for your kind words and 5-star review! I’m so glad to hear your DELTA 2 Max Smart Extra Batteries arrived quickly and in perfect condition. We work hard to make sure our pricing is as competitive as possible, so it’s great to know you felt you received the best value too.

I truly appreciate you choosing Outbound Power, and I hope your new setup serves you well for years to come. If you ever have any questions or need support down the road, don’t hesitate to reach out—we’re always here to help.

So far so good. Easy to use with Delta 2 Max generator. Got a great price (actually paid 899.00) and quick delivery with Outbound Power. I highly suggest you at least check out them before making a purchase. I like supporting small businesses while also saving money.

We are thrilled to know the Delta 2 Max is working so well for you. It was our pleasure to be of service!

Additional Reliable Power

The EcoFlow Delta 2 Max extra battery has now completed my power outage protection. With the Delta 2 Max and extra batteries I am worry free from an extended outage and can keep my living area, fridge including a portable A/C, swamp cooler, powerful fan and small electronics running while in comfort for more than 8 hours. Great addition to ensure our comfort.

This is outstanding to hear. Congratulations on a terrific setup and we could not be happier that you now have greater power security!

Excellent Service and Amazing Shipping

After going without power for 3 days I decided to call Bill at Outbound Power to see about the availibilty of a Extra Battery for my Delta 2 Max. Outbound Power performace is exceptional, recieved my battery in 2 days, packaging was excellent the Battery was easy to setup and easily doubled my capacitry. Thank you Bill and everyone at Outbound Power. My next order will be placed with you. I enjoyed our conversations. Best Regards

Hi David, thank you for your very kind review. It was a true pleasure speaking with you and serving you again. If there is ever anything I can do to be of assistance, please feel welcome to call. - Bill

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Hi Marshall, thank you for your review of the Anker SOLIX F3800 Plus Portable Power Station. We hope this product continues to meet your power needs. Have a great day!

Great service!

Great communication! Excellent customer service. Thanks

Thank you so much for the kind words! We really appreciate you taking the time to share your experience. It means a lot to hear that our communication and service stood out. Please let us know if there is ever anything more we can do to be of service!

It was great doing business with you ill be back
i

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Great power station.

There is a lot to I need to learn about solar power but so far so good with this power station. I do like the Ecoflow app and the delta 3 ultra plus. It is an impressive unit. This unit manageable. I really wanted the Ecoflow delta pro 3 but was afraid of the extra weight. As heavy as it is with the wheels I would still consider it portable as necessary. I am pleased to have found Outbound Power. They also had the best price on the unit. Delivery by Fed Ex went smoothly.

Thank you for the thoughtful feedback. We really appreciate you taking the time to share your experience. There is definitely a learning curve with solar, and it sounds like you are off to a great start. The DELTA 3 Ultra is an impressive system, and it is great to hear the size and mobility are working well for you. Glad to hear the app experience and delivery both went smoothly as well. We are grateful you found us and truly appreciate your support. Please let us know if we ever be of further assistance!

Just right!

The 100W solar panel works great with my Explorer 1000. It keeps my portable fridge charged and plenty of juice for a lot of other things. It’s compact enough and easy to carry.

We really appreciate you sharing this! Being able to reliably run a portable fridge and still have extra capacity is huge, especially when everything stays compact and easy to move. That’s exactly what makes this kind of setup so versatile. Thanks again for your business!

Love how easy this is to set up. 100w is the perfect size for me. Its not to big but keeps my Explorer 1000 topped off.

Thank you for sharing this. We are glad to hear the setup was quick and straightforward. We appreciate your support and great to hear it’s working well for you. Please let us know if there is ever anything more we can do to be of service!

Awesome product and great customer service!

Thank you so much for the kind words! We’re really glad to hear you’re enjoying the F3000, and it means a lot to know our customer service made a positive impression as well. We truly appreciate your support and are always here if you need anything down the road.

Splendid service. Best Price

The value is in the combo price. Pair that with strangely fast FedEx delivery, you have an unbeatable deal. Now it’s all about pulling my setup together.

Thank you for the great feedback. We love hearing this! The combo value is exactly what we aim to deliver, and glad it came through for you.

And yes, when everything shows up faster than expected, it makes the whole experience that much better.

If you need any help dialing in your setup, feel free to reach out. We are happy to help you get everything running exactly how you want it.

Initial review: great product very sturdy and the doors coming off on both sides is a great touch unfortunately I think I would've preferred the next step up in size but honestly couldn't be happier.

Thank you for your review. We’re glad to hear you’re happy with the product and that the sturdy build and removable doors stood out to you. That kind of flexibility can make a big difference. We appreciate your feedback on the size as well, and we’re grateful you chose Outbound Power!

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Hi there! Thank you for your review on the DuroStar DS13000MX Generator. We are happy to hear that you are satisfied with the product. We hope it continues to meet your needs and provide reliable power. If you have any questions or concerns, please don't hesitate to reach out to us. Thank you!

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