BLUETTI B300K Expansion Battery | 2,764.8Wh

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£1,099.00
£1,099.00 £1,499.00 - £400.00
Tax included.

  • 2,764.8Wh Capacity with 4,000+ Life Cycles: Perfectly designed for daily power needs or as a reliable backup during outages.
  • Automotive-Grade LiFePO₄ Battery: Enjoy an extended lifespan and enhanced safety with cutting-edge battery technology.
  • Seamless Compatibility: Effortlessly integrates with BLUETTI AC200L, AC200MAX, AC300, and AC500 power stations.
  • Maximize Your Power: Expand up to a massive 16,588Wh when connected with AC500 for diverse energy needs.
  • 3+1 Years Warranty*: Long-term reliability guaranteed to ensure your battery is well protected.
  • Standalone Power Source: Charge your essential devices anytime with the convenient USB-A Port.
  • Register HERE for an extended warranty.

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BLUETTI guarantees that we will refund you the difference if you find a lower price from us within 30 days of your purchase.

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1. Valid purchase history within 30 days.

2. Take a screenshot of the lower price and email us, we'll refund the differences as soon as we confirmed it.


Free Local Shipping

4-year Hassle Free Warranty

Lifetime Customer Support

Power Expansion for Every Situation

The B300K adapts to your life, whether you're safeguarding your home during outages or powering an off-grid adventure. Stack multiple B300K batteries, or mix and match with other BLUETTI batteries for a customized energy solution that ensures you're never caught without power, no matter where you are.
  • AC200L+B300K
  • AC200MAX+B300K
  • AC300+B300K
  • AC500+B300S

Great Compatibility for More Possibilities

The B300K seamlessly integrates with AC200L, AC200MAX, AC300, and AC500* power stations, giving you the flexibility to scale your energy setup as your needs grow. Whether you're prepping for more power at home or gearing up for your next adventure, the B300K has you covered.
  • P090D to P150D cable is required for connecting with AC500 and sold separately.
  • Built to Protect, Designed to Last

    The B300K is designed to excel in safety and reliability. Featuring square LiFePO₄ batteries and cutting-edge AI-BMS technology, together with a robust aluminum casing, advanced wireless components, and efficient cooling fan ensure this battery stands the test of time, giving you a power source you can count on in any situation.

    Fast Charging Comes in Handy

    When paired with the AC300 or AC500, this battery charges up to 80% in just 45 minutes, so you can get
    back to what matters without any significant interruption, your work, activities, or emergencies ...whether
    you're at home or on the go.

    A Standalone Power Source, A Standout Performance

    The B300K isn't just an add-on; it's also a versatile power hub. With a USB-A port, it's perfect for keeping your essentials like smartphones, tablets, or fans charged, whether you're ready to make an urgent call or message, eager to share beautiful moments with your friends, or try to stay cool while camping in a tent. Power is always within reach, wherever life takes you.

    Never Run Out of Power

    Suitable for various occasions

    Other Top Rated Products

    Specifications

    PREVIEW


    BATTERY INFO


    Model:
    B300K

    Battery Capacity:
    2,764.8Wh (51.2V, 54Ah)

    Battery Type:
    LiFePO4 (Lithium Iron Phosphate)

    Life Cycles:
    4,000+ Cycles to 80% Original Capacity

    OUTPUT


    USB-A:
    12W Max., 5V / 2.4A

    GENERAL


    Net Weight:
    Approx. 29.5kg (65.04lbs)

    Dimensions (L × W × H):
    525 × 327 × 209mm (20.67 × 12.87 × 8.23in)

    Charging Temperature:
    0°C to 40°C (32°F to 104°F)

    Discharging Temperature:
    -20°C to 40°C (-4°F to 104°F)

    Storage Temperature:
    Up to 1 month: -20°C to 40°C (-4°F to 104°F)
    Up to 6 months: -20°C to 25°C (-4°F to 77°F)

    Working Humidity:
    5% to 95%RH

    Charging Current:
    60A Max.
    (Current may decrease outside specified temperatures)

    Discharging Current:
    70A Max.

    2 × Expansion Port:
    58.4VDC Max., 90A Max.

    IN THE BOX


    Download

    BLUETTI B300K Expansion Battery | 2,764.8Wh MANUAL

    Download Now

    FAQS

    How-to

    A useful guide to making the most of it all.

    Product Application

    B300 Battery Module Tutorial

    How to connect AC300 with B300 Battery Modules?

    How to connect AC200MAX with B230 or B300 battery modules?