EcoFlow DELTA Pro Ultra X Battery

Capacity is what turns a few hours of backup into days. The EcoFlow DELTA Pro Ultra X Smart Extra Battery adds 6,144Wh of LiFePO4 storage per pack to DELTA Pro Ultra X and DELTA Pro Ultra inverters. It is plug-and-play, monitored in the EcoFlow app and protected by dual BMS, making it a dependable building block for homes, remote properties and critical communications sites.

6,144Wh Per Pack

Connect up to 10 packs to one inverter (61.44kWh) or up to 30 packs across three inverters (184.32kWh).

EV-Grade LFP Cells

Full-tab LFP cells offer lower internal resistance and less self-heating, with automatic state-of-charge balancing and cold-weather self-heating for safe charging.

Layered Protection

• Dual BMS protection
• Local X-Guard BMS with 44+ safeguards
• Cloud BMS with 100+ anomaly detectors
• Connection monitoring and load isolation

Plug-and-Play

No setup is required: plug the pack in and it appears in the EcoFlow app. Installations with three or more packs require a fixing metal tab, available from EcoFlow. Backed by a 5-year warranty.

Specifications

Capacity	6,144Wh
Battery chemistry	LFP (LiFePO4)
Compatibility	DELTA Pro Ultra X and DELTA Pro Ultra inverters
Max expansion	10 packs per inverter (61.44kWh); 30 packs across 3 inverters (184.32kWh)
Dimensions	26 x 18 x 8 in (660 x 455 x 204 mm)
Weight	111.3 lb (50.5 kg)
Operating temperature	-4 to 113F (-20 to 45C); self-heating for cold charging
App	EcoFlow app
Warranty	5 years