EcoFlow DELTA 2 Max Smart Extra Battery | 2048Wh LFP Expansion Battery

Double or Triple Your EcoFlow Capacity — Up to 30% Less Than Buying New

The EcoFlow DELTA 2 Max Smart Extra Battery adds 2048Wh of LFP storage to your existing DELTA 2, DELTA Max, or DELTA 2 Max. Stack up to two batteries to reach 6144Wh total — at up to 30% lower cost than a standalone power station of the same capacity.

• +2048Wh Per Battery, Up to 6144Wh Total — Add one or two Smart Extra Batteries to your DELTA 2 Max to scale from 2kWh to 6kWh. More storage, same footprint.
• Up to 30% More Affordable Than Buying New — Expanding with a Smart Extra Battery costs significantly less than purchasing a new power station of equivalent capacity.
• LFP Battery — 3000+ Cycles, 10-Year Lifespan — Lithium iron phosphate chemistry holds 80% of original capacity after 3000 full cycles. Built for a decade of daily use.
• Plug-and-Play Install — No setup, no wiring, no electrician. Connect directly to your compatible EcoFlow unit and it's ready to use immediately.
• Compatible With DELTA 2, DELTA Max & DELTA 2 Max — Works across three EcoFlow power station models. Monitor and control via the EcoFlow app.
• 5-Year Full Warranty — One of the most comprehensive warranties in the portable power industry for long-term peace of mind.

Perfect For

Home backup power, extended RV and van life trips, off-grid cabins, overlanding, and emergency preparedness where maximum runtime matters.