The EcoFlow DELTA Pro Ultra X Battery is the updated 6,144 Wh LiFePO4 module for the DELTA Pro Ultra system. It keeps the same 50.7 kg weight, 66 x 45.5 x 20.4 cm footprint and 102.4 V, 60 A connection as the original battery, so it slots straight under the DELTA Pro Ultra Inverter. Up to five of these X Batteries can be stacked to reach 30 kWh of usable capacity for a home backup or off-grid setup.

• 6,144 Wh of LiFePO4 (LFP) storage per module for high-cycle daily use.
• 3,500 cycles to 80% capacity thanks to the LFP chemistry and integrated BMS.
• Stackable up to 5 modules under one DELTA Pro Ultra Inverter for 30 kWh total.
• IP54 dust and splash rating when the ports are closed and the unit is idle.
• Works with all recharge inputs of the DELTA Pro Ultra system: PV, grid, generator, and EV charger up to 6,900 W.
• 5-year warranty per module.

Key specs

• Capacity: 6,144 Wh, 102.4 V, 60 A
• Cell chemistry: LiFePO4 (LFP)
• Life cycles: 3,500 cycles to 80% capacity
• Weight: 50.7 kg
• Dimensions: 66 x 45.5 x 20.4 cm
• IP rating: IP54 (ports closed, unit idle)
• Discharge temperature: -10 °C to 45 °C
• Charge temperature: 0 °C to 45 °C
• Storage temperature: -20 °C to 45 °C
• Warranty: 5 years

A solid add-on for households that already run a DELTA Pro Ultra Inverter and want to extend their off-grid autonomy or emergency backup by another 6 kWh at a time. With five modules stacked the total mass reaches roughly 253 kg on the floor, so installers usually place the unit on a reinforced base or dedicated concrete slab, where it can sit permanently and feed the Inverter through the 102.4 V / 60 A port.