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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

  • Based on 233 reviews
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Availability: In Stock.
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Arrives Monday, Jun 8
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Style: ‎BLUETTI B300K for Apex 300


Features

  • [Universal Expansion Compatibility] - The B300K seamlessly connects with Apex 300 through its expansion port, enabling flexible capacity upgrades for any scenario.
  • [Next-Generation Cells] - Equipped with advanced cells that provide at least 6,000 cycles to 80% capacity, offering a 15% boost in lifespan. Plus, they perform even better at high temperatures.
  • [Next-Gen Design Architecture 2.0] - The B300K expansion battery pack's wireless internal design minimizes the risk of failure and maximizes space efficiency, resulting in a more compact, portable product.
  • [Built-In USB Charging Port] - It's like having a massive power bank with a USB port, ready for those "just-in-case" moments. Connect it to any compatible BLUETTI power station for added versatility.
  • [What You Get] - BLUETTI B300K expansion battery, CA90 battery extension cable for the BLUETTI Apex 300, and user manual.

Brand: BLUETTI


Wattage: 2764.8 Watt-hours


Fuel Type: Electric


Power Source: Solar/AC/Car/lead-acid/Generator powered


Recommended Uses For Product: Home Backup/Off-grid/Emergency/RV/Camping/Outdoor


Item Weight: 65.04 Pounds


Voltage: 120 Volts (AC)


Special Feature: 2764.8Wh Ultra-Large Capacity, 4000+ Long Cycles, Built-In USB Charging Port, Ultra-Fast Charging Speed, Wide Compatibility See more


Included Components: BLUETTI B300K expansion battery, CA90 battery extension cable for Apex 300


Product Dimensions: 20.67"L x 12.87"W x 8.23"H


Wattage: 2764.8 Watt-hours


Fuel Type: Electric


Power Source: Solar/AC/Car/lead-acid/Generator powered


Recommended Uses For Product: Home Backup/Off-grid/Emergency/RV/Camping/Outdoor


Voltage: 120 Volts (AC)


Additional Features: 2764.8Wh Ultra-Large Capacity, 4000+ Long Cycles, Built-In USB Charging Port, Ultra-Fast Charging Speed, Wide Compatibility


Engine Type: Battery


Runtime: 9 hours


Starting Wattage: 3000 Watts


Brand Name: BLUETTI


Included Components: BLUETTI B300K expansion battery, CA90 battery extension cable for Apex 300


Model Number: B300K


Manufacturer: BLUETTI


Item Weight: 65.04 Pounds


Item Dimensions L x W x H: 20.67"L x 12.87"W x 8.23"H


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jun 8

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great battery
Style: ‎BLUETTI B300K for Apex 300
Great battery. Bought 3. May buy 2 more.
Reviewed in the United States on November 22, 2025 by Rick

  • Un sueño hecho realidad
Style: ‎BLUETTI B300K for Apex 300
Componentes del Alta calidad
Reviewed in the United States on December 18, 2025 by Alain

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