Bluetti B300K Expansion Battery – 2764.8Wh High-Capacity Power Backup

Short Description

The Bluetti B300K Expansion Battery delivers a massive 2764.8Wh capacity and cutting-edge LiFePO₄ battery technology for reliable, long-lasting energy storage. Designed as an expandable backup module, it pairs seamlessly with Bluetti power stations, offering flexible energy solutions for homes, RVs, and off-grid setups.

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Key Features

• High Capacity – 2764.8Wh: Provides extended runtime for appliances, tools, and electronics.

• Durable LiFePO₄ Cells: Up to 3,500+ charge cycles, ensuring long lifespan and stable performance.

• Expandable System: Compatible with Bluetti power stations for scalable energy setups.

• Multiple Output Options: DC, USB, and solar charge support for maximum flexibility.

• Smart Battery Management System (BMS): Protects against overcharge, overheating, and short circuits.

• Portable Design: Compact yet powerful – perfect for home, outdoor, or emergency use.

• Fast Charging Ready: Supports AC, solar, and car charging inputs for quick energy recovery.

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Long Description

The Bluetti B300K 2764.8Wh Expansion Battery is a premium energy storage solution engineered for users who demand reliability, efficiency, and flexibility. Built with advanced LiFePO₄ battery chemistry, it offers remarkable durability with over 3,500 charge cycles — maintaining more than 80% of its capacity even after years of use.

Designed as an add-on battery for Bluetti power stations, the B300K allows you to expand your energy capacity effortlessly, making it ideal for home backup systems, RV adventures, and off-grid applications. Its integrated Battery Management System (BMS) ensures safe operation and intelligent monitoring of voltage, temperature, and current.

Whether you’re powering tools at a remote site or keeping essential devices running during outages, the Bluetti B300K delivers consistent, high-quality power wherever you need it.

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Applications

• Home and office backup power

• Outdoor camping and RV setups

• Solar and off-grid energy systems

• Emergency preparedness

• Mobile workstations and field operations

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Specifications (Typical)

• Brand: Bluetti

• Model: B300K

• Battery Capacity: 2764.8Wh (51.2V, 54Ah)

• Battery Type: LiFePO₄ (Lithium Iron Phosphate)

• Cycle Life: 3,500+ cycles to 80% capacity

• Output Ports: DC / USB / Expansion

• Input Ports: AC / Solar / Car

• Operating Temperature: –10°C to 45°C

• Dimensions: Approx. 40 × 27 × 31 cm

• Weight: Approx. 26 kg

• Warranty: 3 Years (Typical Bluetti Warranty Policy)