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How does the AC500 + B300S compare?
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GridMatch assessment
Editorial take by GridMatch Editors
The Bluetti AC500 paired with one B300S is a modular 3.07 kWh LiFePO4 system with 5,000 W continuous output and 10,000 W surge, expanding to 18.4 kWh. A single AC500 is 120V only — split-phase 240V requires two AC500 units joined by a P030A Fusion Box, and Bluetti notes combined split-phase output tops out around 7,200 W rather than 10,000 W. No wheels — separate inverter head and battery. The Home Integration Kit for one AC500 + B300S is a 120V / 5,000 W manual transfer path, not a 240V panel feed.
What works
- Expandable to 18.4kWh
- 20 ms UPS switchover
- LiFePO4 chemistry
- 5kW continuous output
Tradeoffs
- No native 240V from a single unit
- Transfer switch is manual — you flip it during an outage
- No wheels — the station stays put
Full Specifications
Technical Specifications
Runtime Quick-Check
Runtime Quick-Check
Pick a battery and an appliance — see days of runtime after the 0.85 inverter derate.
Formula: (3072 Wh × 0.85) ÷ 1.26 kWh/day = 2.1 days. Continuous draw ≈ 17.4 hours at full load.
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