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BLUETTI B300 Expansion Battery – 3072Wh LiFePO₄ Power for AC300, AC500 & More

BLUETTI B300 Expansion Battery – 3072Wh LiFePO₄ Power for AC300, AC500 & More

  • 3072Wh capacity with ultra-safe LiFePO₄ cells

  • Compatible with BLUETTI AC300, AC500, EP500Pro, and other modular systems

  • Built-in USB-C PD (100W), Car Port (12V/10A), and USB-A QC3.0 (18W) outputs

  • Up to 500W AC input or 200W solar charging with MPPT support

  • Can be used independently as a power source or as a battery expansion unit

  • Supports solar input with 1–2 × PV120 or PV200 panels

  • Strong build quality, smart BMS protection, and high portability

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The BLUETTI B300 Expansion Battery adds 3072Wh of clean, reliable energy to your existing power station setup. Built with premium LiFePO₄ cells and advanced Battery Management System (BMS), the B300 is ideal for pairing with the BLUETTI AC300, AC500, EP500Pro, or using as a standalone DC power hub. Equipped with multiple output options—100W USB-C, 18W USB-A QC3.0, and 12V car port—it offers fast and safe charging for your everyday devices. The B300 supports solar charging (up to 200W MPPT), AC wall charging (up to 500W), and vehicle charging via 12V/24V input. Designed for modular expansion, outdoor power, and backup scenarios, the B300 battery delivers long-lasting performance in a durable, portable design  
Specifications:
  • Battery Capacity: 3072Wh
  • Battery Chemistry: LiFePO₄ (3500+ life cycles to 80%)
  • Output Ports:
    • 1 × USB-C PD 100W
    • 1 × 12V/10A Car Port
    • 1 × USB-A QC3.0 (18W)
  • Charging Inputs:
    • AC Input: 500W Max
    • Solar Input: 200W Max (MPPT Supported)
    • Car Input: 12V/24V, 8A
  • Compatible Solar Panels:
    • 1–2 × PV120
    • 1–2 × PV200
  • Weight: 36.1kg / 79.6lbs
  • Dimensions: 519.8mm × 319.8mm × 263mm (20.5in × 12.5in × 10.5in)
  • Certifications: UL, CE, FCC, PSE, EMC, ROHS, UN38.3
Typical Applications:
  • Capacity expansion for BLUETTI modular systems (AC300, AC500, etc.)
  • Independent portable DC power supply for camping, work sites, and emergency kits
  • Solar energy storage for off-grid living
  • Power source for devices requiring USB-C PD, car socket, or USB-A QC3.0
Packing List:
  • 1 × BLUETTI B300 Expansion Battery
  • 1 × Charging Cable (AC/Solar as per kit)
  • 1 × User Manual & Warranty Card
About Manufacturer:
BLUETTI is a global leader in clean energy storage and portable power technology. Headquartered in China, BLUETTI specializes in developing next-generation solar power stations, home energy storage systems, and eco-friendly battery backups. With over a decade of R&D expertise, BLUETTI is committed to providing reliable, efficient, and sustainable energy solutions for homes, outdoor adventures, emergency preparedness, and off-grid applications. Their award-winning LiFePO₄ technology, intuitive mobile app, and scalable energy systems serve customers in more than 70 countries.

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