EcoFlow DELTA 2 Max Smart 2Extra Battery

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-2
Price: 1364.0 USD
Availability: OutOfStock

by EcoFlow

SKU: EFDELTA2MaxEB-2

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$2,798.00

$1,364.00

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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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Eco Flow Rectifier - Multi Use Modifications

The EcoFlow Recifier is the only device on the market capable of connecting AC input from a "dirty" 120/240V AC generator or any 120V AC V2L source to charge a Power Station DC battery via the solar DC MPPT inputs. As may YouTube reviews have shown, it works only with EcoFlow Delta Pro inverters. It does not work out-of-the box with many other non EcoFlow Power Stations .

The EcoFlow Rectifier is just a simple rectifier that converts AC input into a full wave rectified sine wave oscillating between 0-DC and mac-DC. When non-EcoFlow power stations like Anker E10 or others or even EcoFlow non Delta-Pro stations receive a full wave rectified sine wave the internal MPPT controller does not charge the power station DC battery. A stable non-oscillating DC voltage is required for most MPPT controllers to accept DC input.

Adding a simple DC capacitor will smooth out the rectified sine wave into a more or less stable DC voltage. Most MPPT controllers will accept this as a stable PV DC input source. A parallel capacitor discharge resistor is needed so the inrush current to the MPPT controller does not exceed its maximum amp rating like 15A on the Anker E10.

A Note of Caution: Do not exceed the MPPT max DC voltage and the MPPT max DC amperage and use a variable AC voltage and a current limiting device for testing.

I can DC charge an Anker E10 from an AC source without the need to disable solar AC coupling, one of the most limiting E10 features. This is a low-cost DC charging solution from any AC input source.

Anker needs to offer a comparable AC-to-DC charging inverter using the existing generator MPPT DC input to stay competitive against the EcoFlow Rectifier solution.

Thank you, Hans, for sharing your detailed experience with the EcoFlow FlowMaster Generator Rectifier. We're glad to hear it provides a versatile solution for DC charging from various AC sources. Your insights are valuable and help inform other customers considering this product. If you have any further questions or need assistance, feel free to reach out.

Thank you again for choosing Outbound Power!

OP IS RELIABLE SOURCE FOR POWER

Unit working as advertised and purchasing from OP was super easy. Arrived promptly after order.

Thank you for your wonderful feedback. We're glad your Jackery is working well for you and that the purchase process was smooth. We appreciate you!

I just installed my 500 Watt charger

I just installed my 500 Watt charger so I have not used it to charge my Delta Pro. The install went well with no issues!

Hi Joseph, we're glad to hear your installation went smoothly! We hope the charger works perfectly when you start using it with your DELTA Pro. Thanks for sharing your experience!

Hooked it up man in that favor is producing 810 watts right off the back 800 watts no problem that's what it idling That's not even with me driving so that is awesome one of the best I'm glad I bought it I can't wait to start taking pictures after I hook up all my system

Thank you for the great review! We’re thrilled to hear your system is already producing around 800 watts at idle. That’s an impressive start. We can’t wait to see the photos once you have everything fully installed and running. Enjoy the new setup, and please reach out anytime if we can help along the way!

Great Customer Service

The battery is great and will work well with the string of batteries I currently have. I had a mix up initially with the wrong cord coming with the battery and the team at Outbound was quick to get it taken care of for me. I would definitely buy from again.

Hi Casey, thank you so much for your kind words! We're glad to hear you're satisfied with the battery and our support. We'd be happy to serve you again anytime!

Great Portable Power Station

Living in South Florida where frequent thunderstorms can not out the power for a while. I wanted a back up power supply , unit charged up in under an hour, tested multiple devices all seems really good.

Hi Robert, we're thrilled to hear you're happy with the SOLIX C2000! It’s great that it’s been reliable during storms. Thanks for sharing your experience!

Nice power station

Nice power station. Does the job for a good price

Hi there, thank you for your kind words! We're glad the Pecron E3600LFP is meeting your needs. Feel free to reach out if you have any questions or need assistance.

I love this cable

I love this cable. The original cable intended for the echo-flow Delta Pro is next to worthless, but this cable is very much user friendly and more much easier to use.

Thanks so much for the review! We’re glad this cable has been a much easier and more user-friendly option for your DELTA Pro. That’s exactly what we like to hear. Please let us know if we can be of service again!

Running this battery as my one and only for my

Running this battery as my one and only for my off grid home. Replaced eight 6 volt Trojans batteries. It was easy to hook up with my Schneider system. Going to buy one more.

Thank you for the great review! We’re glad to hear the battery was easy to connect with your Schneider system and is working well for your setup. We appreciate you and would be happy to be of service when you’re ready to add another one!

Longer is Better!

Everything is better as the solar panels have a longer more efficient angle with the longer cables.

Thank you for the great review! We’re glad the longer cables are helping you get better performance from your setup. We appreciate you!

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