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.