Boost your energy storage with the BLUETTI B300K Expansion Battery—a heavy-duty, automotive-grade LiFePO₄ module designed to seamlessly expand the capacity of your existing BLUETTI power station. With a massive 2,764.8Wh capacity, 4,000+ life cycles, and compatibility with top-tier models like the AC300 and AC500, the B300K is a game-changer for off-grid power and home backup systems.
✔ 2,764.8Wh Capacity – Store more power for longer trips or outages
✔ LiFePO₄ Battery with 4,000+ Cycles – Long-lasting and ultra-safe chemistry
✔ Compatible With BLUETTI AC200L / AC200MAX / AC300 / AC500
✔ Expandable to 16,588Wh – Connect multiple units with AC500 for larger setups
✔ USB-A Output Included – Charge devices directly from the battery
✔ Standalone or Integrated Use – Use with or without your BLUETTI station
✔ Heavy-Duty Build with Smart Battery Management
✔ 4-Year Warranty – Long-term power with peace of mind
Perfect for Off-Grid, Emergency Backup & Solar Storage
Whether you're living off the grid, building a backup system for your home, or powering an extended camping trip, the B300K provides dependable, high-capacity energy. Pair with solar panels or a BLUETTI inverter for a flexible, future-proof setup.
Key Features:
✔ Battery Type: LiFePO₄ (Lithium Iron Phosphate)
✔ Capacity: 2,764.8Wh (51.2V, 54Ah)
✔ Battery Life: 4,000+ Cycles to 80% Original Capacity
✔ USB-A Output: 12W Max (5V / 2.4A)
✔ Standalone Charging Capable: Yes
✔ 2 x Expansion Ports: 58.4VDC Max, 90A Max
✔ Max Charging Current: 60A
✔ Max Discharging Current: 70A
✔ Compatible With: BLUETTI AC200L, AC200MAX, AC300, AC500
✔ Expandable Capacity: Up to 16,588Wh with AC500 system
Specifications:
Weight: 29.5 kg
Dimensions: 525 x 327 x 209 mm
Charging Temp: 0°C to 40°C
Discharging Temp: -20°C to 40°C
Storage Temp:
• Up to 1 month: -20°C to 40°C
• Up to 6 months: -20°C to 25°C
Working Humidity: 5% to 95% RH
Warranty: 4 Years
What’s in the Box?
✔ 1 x BLUETTI B300K Expansion Battery
✔ 1 x Battery Expansion Cable
✔ 1 x User Manual
⚡ Expand your power, extend your independence—with the BLUETTI B300K, your energy storage solution is smarter, safer, and ready for anything.
Returns Policy
DUE TO ACCIDENTAL ORDER OR CHANGE OF MINDWe offer a 30-day return policy. You have 30 days after receiving your item to request a return.
To be eligible, items must be unused, in their original packaging, and in the same condition you received them. A receipt or proof of purchase is required.
To start a return, email us at info@campalot.com.au. If approved, we'll send instructions on where to return the item. Items sent back without first requesting a return will not be accepted.
DAMAGED OR INCORRECT ITEMS
Please check your order when it arrives. In the unlikely event it is damaged, defective, or the wrong item, contact us right away so we can fix the issue.
Please refer to our full Refund & Return Policy for more information
Shipping
We ship to most Australian postcodes and work with trusted couriers to ensure safe and timely delivery. You’ll receive a tracking number as soon as your order ships.
Standard shipping usually takes 3–7 business days, depending on your location. Remote or regional areas may take a little longer.
Please refer to our full Shipping Policy for more information
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