Description EcoFlow Extra Battery Cable – Extended Runtime for WAVE 2 & Power Stations The EcoFlow Extra Battery Cable connects the EcoFlow WAVE 2 to compatible EcoFlow power stations and extra batteries, ensuring extended runtime for uninterrupted operation. Key Features Seamless Compatibility – Supports DELTA Max, DELTA 2, and DELTA Max Extra Battery for extended power supply. Flexible Connectivity – Connect WAVE 2 to DELTA Pro and DELTA Pro Extra Battery with an EcoFlow DELTA Pro to Smart Generator Adapter (sold separately). Smart Power Expansion – Enables linking of DELTA Max to the DELTA Max Smart Extra Battery or Smart Generator (Dual Fuel) for additional power backup. Specifications Extra Battery Cable (1m) Length: 3.2 ft (1m) Extra Battery Cable (5m) Length: 16 ft (5m)