Description
Get significantly more out of your EcoFlow DELTA 2 with the DELTA 2 Smart Extra Battery — the official expansion battery that doubles or even triples your DELTA 2’s energy storage in minutes. Adding 1,024Wh of LiFePO4 capacity, one battery takes your DELTA 2 from 1,024Wh to 2,048Wh, while adding two batteries pushes total capacity to 3,072Wh — transforming a capable compact station into a serious home backup and extended off-grid power source.
The connection is fully plug-and-play. Attach the Smart Extra Battery to the DELTA 2’s expansion port and the station immediately detects and displays the new total capacity — no configuration, no app setup required. The EcoFlow app reflects the updated energy reserve in real time, giving you accurate monitoring of the complete system. The “Smart” designation refers to the battery’s active cell monitoring system, which continuously communicates cell health, temperature, and state of charge data to the DELTA 2 and app, enabling intelligent charge management and long-term battery health optimization.
Built on LFP chemistry, the DELTA 2 Smart Extra Battery delivers over 3,000 charge cycles with 80%+ capacity retention — more than 10 years of daily use. It charges via the DELTA 2’s charging system, including solar charging through the station. Compatible exclusively with the EcoFlow DELTA 2 power station.
Expanding your DELTA 2 with a Smart Extra Battery is the most cost-effective way to add serious backup capacity without purchasing a new, larger station. Backed by EcoFlow’s standard product warranty.
