
EcoFlow
EcoFlow DELTA Pro Ultra Series Smart Extra Battery
Compatible with both DELTA Pro Ultra and DELTA Pro Ultra X inverters, this Smart Extra Battery adds 6144Wh to a DELTA Pro Ultra X system. Setup is plug-and-play.
$1,839.20


Shipping & delivery30-day returnsWarranty
Check local voltage, plug, installation, and product-certification requirements before ordering. We confirm compatibility and availability for your destination before payment.
The listing pairs one DELTA Pro Ultra inverter with two DELTA Pro Ultra batteries, giving you a whole-home backup starting point that can grow later. It is aimed at homeowners planning a larger battery system with LFP chemistry and UPS-style switchover.
Planning a system? Read our guide: How to size a battery backup system for your home.
A starting configuration for whole-home backup that can be expanded with more batteries and inverters over time.
7.2kW-21.6kW output with up to 3 inverters -Up to 90kWh capacity with 3 inverters and 15 batteries -5.6kW-16.8kW solar input with up to 3 inverters -Online UPS, 0-ms transfer time -LFP battery
Warranty terms mentioned in this description are the manufacturer’s. Our own coverage is the 30-day limited warranty.
We confirm compatibility, installation requirements, and delivery details with you during order review, before any payment. Home electrical work may require a qualified installer.
Our team can help you size this one-inverter, two-battery setup against your household loads. Message our team on WhatsApp.