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BLUETTI B300K Expansion Battery

$1,699.00
$999.00
In stock
$1,699.00
$999.00
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Experience reliable, long-lasting power with the BLUETTI B300K Expansion Battery, a high-capacity 2,764.8Wh LiFePO₄ battery designed for seamless compatibility with BLUETTI power stations including the AC200L, AC200MAX, AC300, AC500, and Apex300. Whether for home backup, off-grid adventures, or professional use, the B300K delivers consistent performance and superior durability.

Key Features

– High-Capacity Performance – 2,764.8Wh (51.2V, 54Ah) energy storage provides dependable power for essential devices or backup systems.
– Extended Lifespan – Automotive-grade LiFePO₄ cells ensure over 6,000 charge cycles (80% capacity) for years of reliable use.
– Seamless Compatibility – Works effortlessly with AC200L, AC200MAX, AC300, AC500, and Apex300 power stations. (A P090D to P150D cable is required for AC500, sold separately.)
– Expandable Energy Solution – Combine multiple B300K units or pair with B300/B300S batteries to reach up to 58kWh of total storage.
– Standalone USB-A Output – Built-in 12W USB-A port (5V/2.4A) allows direct charging for smartphones, tablets, or small devices.
– Fast Charging Efficiency – When connected to AC300 or AC500, the B300K recharges to 80% in just 45 minutes.
– Smart Safety & Build Quality – Advanced AI-BMS protection, robust aluminum casing, and efficient cooling fans enhance safety and longevity.
– All-Climate Performance – Operates reliably from -20°C to 40°C (-4°F to 104°F), ensuring dependable output in any environment.
– Warranty & Support – Includes a 3+1 year extended warranty with registration for peace of mind and long-term reliability.

Technical Specifications

  • Battery Type: LiFePO₄ (Lithium Iron Phosphate)

  • Capacity: 2,764.8Wh (51.2V, 54Ah)

  • Cycle Life: 6,000+ (80%)

  • Output Port: 1 × USB-A (12W Max, 5V/2.4A)

  • Weight: 29.5 kg (65.04 lbs)

  • Dimensions: 52.5 × 32.7 × 20.9 cm (20.67 × 12.87 × 8.23 in)

  • Charging Current: 60A Max

  • Discharging Current: 70A Max

  • Operating Temp: -20°C to 40°C (-4°F to 104°F)

  • Warranty: 3+1 Years (with registration)

In the Box

  • BLUETTI B300K Expansion Battery × 1

  • Battery Connection Cable (CA90) × 1

  • User Manual × 1

User Manual

Download the BLUETTI B300K User Manual (PDF)

Trust & Assurance

Shop with confidence - we are an Authorized BLUETTI Dealer, offering free shipping, manufacturer-backed warranty, and expert support. Every purchase ensures genuine BLUETTI quality and performance.

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