Bluetti BlueCell 300 Expansion Battery

Battery & Capacity

• Model: B300K (BlueCell 300)
• Capacity: 2,764.8Wh (51.2V, 54Ah)
• Battery type: LiFePO₄ (LFP)
• Lifecycle: 4,000+ cycles to 80% capacity

 Output / Ports

• USB-A output:
  • 1 × 12W (5V / 2.4A)

 Note:

• No AC inverter (this is a battery module, not a standalone power station)
• Most outputs come from the main unit (e.g., Apex 300, AC300, AC500)

 Expansion & Compatibility

• Works with:
  • Apex 300
  • AC300 / AC500
  • AC200L / AC200MAX
• Expandable system:
  • Adds ~2.7kWh per unit
  • Can stack multiple batteries for large home backup systems

 Charging & Power Flow

• Charging via main unit only (no independent charging)
• Max charging current: 60A
• Max discharge current: 70A
• Expansion ports:
  • 2 × ports (58.4VDC max, 90A max)
• Fast charging (when paired):
  • Up to 80% in ~45 minutes (with compatible systems)

 Physical Specs

• Weight: ~29.5 kg
• Dimensions: 525 × 327 × 209 mm
• Design: Stackable, aluminum casing, integrated handles

 Operating Conditions

• Charging temp: 0°C to 40°C
• Discharging temp: -20°C to 40°C
• Humidity: 5%–95% RH

 Safety & Technology

• AI-enhanced BMS (Battery Management System)
• Protection against:
  • Overcharge / over-discharge
  • Overcurrent
  • Short circuit
  • Temperature extremes

 Key Takeaways

• Large capacity module: Adds ~2.7kWh per unit
• Modular scaling: Designed for serious systems (home backup / off-grid)
• Not standalone: Requires a compatible Bluetti power station
• Long lifespan: 4000+ cycles with LiFePO₄ chemistry

The Bluetti BlueCell 300 (B300K) is a high-capacity expansion battery designed to seamlessly increase the storage potential of compatible Bluetti power stations. Built with advanced LiFePO₄ (Lithium Iron Phosphate) technology, it delivers exceptional safety, long lifespan, and dependable performance for home backup, off-grid setups, and mobile power applications.

With an impressive 2,764.8Wh capacity, the B300K provides substantial additional runtime for essential appliances, tools, and devices. Its modular design allows you to connect multiple units, giving you the flexibility to scale your energy system as your power needs evolve.

• 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.