EcoFlow DELTA Pro Smart Extra Battery — Add 3600Wh of LFP Capacity to Your DELTA Pro The DELTA Pro Smart Extra Battery is a plug-and-play capacity expansion that adds 3600Wh to your DELTA Pro, scaling total capacity to 7.2kWh — or up to 10.8kWh with a second battery. Connect it once and it charges and discharges in sync with your DELTA Pro across all supported charging methods. ⚠ Compatibility. This battery is compatible with the DELTA Pro only. The DELTA Pro supports a maximum of two Smart Extra Batteries at a time. ⚠ Standalone Charging. When not connected to a DELTA Pro, this battery can only be charged via the EcoFlow Smart Generator. All other charging methods require it to be connected to a DELTA Pro power station. Key Features Adds 3600Wh to Your DELTA Pro — Expands from 3.6kWh to 7.2kWh; add a second battery for up to 10.8kWh total capacity LFP Battery Chemistry — 6,500 cycles to 50% capacity; 3,500 cycles to 80%; estimated 10-year lifespan with daily use Plug-and-Play Setup — No configuration required; charges and discharges in sync with DELTA Pro across all supported charging methods Full MultiCharge Support — Benefits from all DELTA Pro charging methods, including 6500W MultiCharge, when connected to the station EcoFlow App Control — Monitor and control the battery remotely via the EcoFlow app 5-Year Full Warranty — One of the most comprehensive warranties in the portable power category Specifications Specification Detail Capacity 3600Wh Battery Chemistry LFP (LiFePO4) Cycle Life 6,500 cycles to 50% capacity; 3,500 cycles to 80% capacity (~10-year lifespan) Weight Approx. 84 lbs / 38 kg Dimensions (L×W×H) 25 × 11.2 × 16.4 in / 63.5 × 28.5 × 41.6 cm Compatible Models DELTA Pro only Max Batteries per Station 2 (total capacity up to 10.8kWh) Charging (when connected) All DELTA Pro charging methods supported, including 6500W MultiCharge Standalone Charging Via EcoFlow Smart Generator only (without DELTA Pro connected) App Control EcoFlow app — monitor and control remotely Warranty 5-Year Full Warranty