EcoFlow DELTA Pro Ultra Extra Battery
Power Up. Scale Up. Safely.
Take your whole-home or high-demand power backup to the next level.
The DELTA Pro Ultra Extra Battery is designed to work with the DELTA Pro Ultra inverter system — delivering expanded capacity, long-life battery chemistry, and modular flexibility.
Key Features
- Capacity: ~6,144 Wh (≈ 6 kWh) per unit.
- Battery chemistry: LiFePO₄ (LFP) — safe, long lifespan (~3,500 cycles to 80 % capacity).
- Stackable / Expandable: Combine multiple units to reach 30 kWh (5 units) or more with compatible inverters.
- Plug-and-play expansion: Designed to integrate with the DELTA Pro Ultra system — no separate setup.
- Robust build: Large form-factor unit (~660 × 455 × 204 mm), weight approx. 50.7 kg.
What It’s For
- Expanding your home-backup battery bank — handle longer outages, larger loads, even EV charging.
- Professional or off-grid installations where high-capacity modular batteries are needed.
- Projects where safe, durable battery technology (LFP) is a requirement — with years of reliable use ahead.
- Users already invested in the EcoFlow DELTA Pro Ultra ecosystem seeking to scale.
EcoFlow DELTA Pro Ultra Extra Battery — the scalable “building block” of a truly serious energy storage system.
Expand safely, power longer, and design your backup system exactly how you need it.
Capacity | ~6,144 Wh (~6 kWh) |
Chemistry | LiFePO₄ (LFP) |
Cycle Life | ~3,500 cycles to 80 % |
Dimensions (W × D × H) | ~660 × 455 × 204 mm |
Weight | ~50.7 kg |
Compatibility | Requires DELTA Pro Ultra inverter system |
1 x DELTA Pro Ultra Extra Battery
1 x Battery connection cable
Safety & installation guide