EcoFlow Delta 2 Max vs Bluetti AC300: 2 kWh+ Showdown

The short answer

Both the EcoFlow Delta 2 Max and Bluetti AC300 are 2+ kWh portable power stations, but they take different approaches. The EcoFlow wins on recharge speed and integrated portability; the Bluetti wins on capacity expansion and modular flexibility.

Side-by-side spec comparison

Where the EcoFlow Delta 2 Max wins

The EcoFlow Delta 2 Max wins on recharge speed — 43 minutes to 80% from a wall outlet is the fastest in the 2 kWh class. The integrated design (single unit, no separate battery pack) is also more portable and simpler to use. At $1,399–$1,699, it's significantly cheaper than the Bluetti AC300 + B300 combo. If you want a single self-contained 2 kWh power station that recharges fast, the Delta 2 Max is the pick.

Where the Bluetti AC300 wins

The Bluetti AC300 is a modular system — the AC300 is the inverter/charge controller unit, and you add B300 expansion batteries (3,072 Wh each) for capacity. Up to 4× B300 units gives you 12,288 Wh (12.3 kWh) total — enough for serious whole-home backup. The 3,000W continuous output (6,000W surge) is the highest in the portable class, enough to start most central AC compressors. If you need 6+ kWh of storage or want to start large motors, the AC300 wins.

Decision framework

• Choose EcoFlow Delta 2 Max if: You want 2 kWh of portable power, you value fast recharge, or you want a single self-contained unit.
• Choose Bluetti AC300 if: You need 6+ kWh of capacity, you need to start central AC compressors (3,000W+ output), or you want modular expandability.