EcoFlow DELTA Pro Ultra Battery Pack Solar Generator Expansion Batteries EcoFlow

EcoFlow DELTA Pro Ultra Battery Pack

Name: EcoFlow DELTA Pro Ultra Battery Pack
Brand: EcoFlow
SKU: EFDeltaProUltra-BP-US
Price: 2099.0 USD
Availability: InStock

BY: EcoFlow

SKU: EFDeltaProUltra-BP-US

| Availability: In Stock

$3,299.00

$2,099.00

You Save: $1,200.00

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EcoFlow DELTA Pro Ultra Battery

The EcoFlow DELTA Pro Ultra Battery Pack is the perfect solution for expanding your home energy storage. Designed to pair seamlessly with the DELTA Pro Ultra Inverter, each battery pack adds 6kWh of capacity and can be stacked for up to 90kWh of total storage. Whether you’re powering your entire home during an outage, living off-grid, or optimizing your solar energy usage, this battery pack provides reliable, long-lasting performance in a sleek, modular design.

EcoFlow DELTA Pro Ultra Battery Pack Features

6kWh Expandable Capacity per Pack

Each unit adds a significant amount of storage, allowing you to tailor your system to your specific power needs.

Stackable for Up to 90kWh Total Storage

Connect and stack up to 15 units with one inverter for massive energy reserves that can run a full home or off-grid property for days.

Long-Lasting LiFePO4 Battery Chemistry

Engineered for stability, safety, and longevity with over 3,500 life cycles at 80% capacity.

Seamless Integration with DELTA Pro Ultra Inverter

Works as a plug-and-play expansion to your DELTA Pro Ultra system—no extra configuration required.

Safe Indoor and Outdoor Use

Operates quietly and safely in a variety of environments, with smart thermal management and advanced BMS protection.

EcoFlow DELTA Pro Ultra Battery Pack Applications

Whole-home energy storage - Store backup energy to power your entire home during blackouts or grid failures.
Off-grid and cabin living - Extend battery runtime for solar-powered off-grid setups and remote properties.
Daily solar energy use - Maximize your solar panel efficiency by storing excess daytime energy for nighttime use.
Expandable business power backup - Ideal for small businesses or workshops needing extended backup without fuel reliance.
Smart energy management - Pairs with the EcoFlow app for real-time monitoring and energy usage insights.

What's Included

Everything you need is included with your product.

EcoFlow DELTA Pro Ultra Battery

EcoFlow Battery Connection Cable

EcoFlow DELTA Pro Ultra Battery Pack Specifications

Category	Specifications
Net Weight	Inverter: 31.7 kg (70 lb) \| Battery: 50.7 kg (111.8 lb)
Dimensions	Inverter: 690 × 481 × 214 mm (27.2 × 18.9 × 8.4 in) \| Battery: 660 × 455 × 204 mm (26 × 18 × 8 in)
Capacity	102.4V⎓60A, 6,144Wh
Cell Chemistry	LFP
Cycle Life	80% capacity after 3,500 cycles

Output

Category	Specifications
AC Output	Discharging: Pure sine, 7,200W total, 120V/240V~ 60Hz \| Bypass: 100–120V~30A total, 50Hz/60Hz
DC Output	12.6V⎓30A, 378W Max
Number of AC Outlets	120V AC Output Socket (Backup UPS): 2 × 20A Max per port \| 120V AC Output Socket (Online UPS): 2 × 20A Max per port \| 120V AC Output Socket (Online UPS): 1 × 30A Max \| 120V/240V AC Output Socket (Backup UPS): 1 × 30A Max
USB-A Output	2 × 5V⎓2.4A, 12W Max per port, total 24W
USB-C Output	2 × 5/9/12/15/20V⎓5A, 100W Max per port, total 200W

Input

Category	Specifications
AC Input	Charging: 100–120V⎓15A; 200–240V⎓12.5A, 50/60Hz \| Bypass: 100–120V⎓15A, 50/60Hz (duration <3hrs when the current exceeds 12A)
Solar Charging Input:	Solar Charging Input: Total 5600W, 2 ports \| High-PV Input: 80–450V⎓15A, 4000W Max, Low-PV Input: 30–150V⎓15A, 1600W Max

EcoFlow DELTA Pro Ultra Battery Pack Videos

Frequently-Asked Questions

How many batteries can I add to a DELTA Pro Ultra system?

You can connect up to 15 battery packs per inverter for a total of 90kWh of energy storage.

Is this battery safe to use indoors?

Yes. The battery is quiet, fume-free, and designed for safe indoor operation with integrated battery management and temperature control.

Can I install this myself?

Installation is straightforward for those familiar with EcoFlow systems, but professional assistance is recommended for large setups.

Do I need additional cables to connect multiple units?

No. All necessary connection accessories are included, and additional packs are designed to stack directly.

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I was a DIY solar power wannabe... that is 'til I connected with Manny... The man's a prince! He not only knows his stuff; he walked me through all things electrical. To make sure I had all I needed... he gave me his cell phone # to text him anytime I got confused... nights and weekends included. The prices were very competitive... definitely go with Manny -- you won't go wrong!

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I'm about to go off grid. I called Manny, he walked me through everything so I could truly understand what I needed and never tried to upsell me. He was honest and made a customer for life.

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I would personally like to thank Manny... I purchased the inverter and decided I needed to return it... Manny was very understanding and went out of his way to help me return the product and not even have to pay for shipping return. He gives this company reputation, honor and quality customer service!

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Totally Off Grid.

I have been talking with Manny the owner... He has not only helped me design a system but he's been assisting with the install and components. I am super pleased so far with the assistance.

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We added 2 more batteries to our current set up. Pleased with the customer service from Off-Grid Source! Will be back!

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