BLUETTI B300K 2764.8Wh LiFePO4 Expansion Battery

BLUETTI ★ 3.3/5 · ItemOracle Score Premium

$1699 USD
Price subject to change
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BLUETTI B300K, 2764.8Wh LiFePO4 Battery Pack for Portable Power Station Apex 300 Only, Extra Battery for Home, Emergency, Road Trip

Expansion battery for Apex 300 with high-cycle LiFePO4 cells. Enables flexible capacity upgrades and space-efficient wireless internal design. Customer notes include long-range power and solar capabilities

Highlights

  • expansion-capable with Apex 300
  • 4,000+ cycle life
  • weather-resilient high-temp performance

Pros

  • expansion compatibility with Apex 300
  • high-cycle LiFePO4 cells
  • compact, space-efficient design
  • supports solar power capabilities
  • positive build quality feedback

Cons

  • mixed views on battery life and value for money

Best For

  • home emergency power
  • road trip power supply
  • off-grid solar setup
  • remote site power
  • mobile power for Starlink systems
  • backup power for AC200Max expansion

Features

  • Connects with Apex 300 via expansion port for scalable capacity
  • Uses next-generation cells rated for at least 4,000 cycles to 80% capacity
  • Wireless internal design optimizes space and reduces failure points
  • Built-in USB charging port adds portable power options with compatible BLUETTI stations

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