PRODUCT HIGHLIGHTS
- 2,764Wh high-capacity battery.
- 4,000+ life cycles with LiFePO₄ cells.
- Compatible with AC200PL, AC240P, AC300, AC500.
- Expandable up to 16,584Wh.
- Built-in USB-A port for direct charging.
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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 AC200PL,AC240P, AC300, and AC500 power stations.
Maximize Your Power
Expand up to a massive 16,584Wh 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.








BATTERY INFO
Battery Capacity: | 2,764.8Wh (51.2V, 54Ah) |
Battery Cell Type: | LiFePO4 (Lithium Iron Phosphate) |
Rated Life Cycle: | 4,000+ Cycles to 80% Original Capacity |
Discharging Current: | 70A Max. |
Working Humidity: | 5% to 95%RH |
Charging Current: | 60A Max. (Current may decrease outside specified temperatures) |
Discharging Temperature: | -20°C to 40°C (-4°F to 104°F) |
Charging Temperature: | 0°C to 40°C (32°F to 104°F) |
Storage Temperature: | Up to 1 month: -20°C to 40°C (-4°F to 104°F) Up to 6 months: -20°C to 25°C (-4°F to 77°F) |
2 × Expansion Port: | 58.4VDC Max., 90A Max. |
Warranty: | 48 Months |
OUTPUT
USB-A Port: | 2W Max., 5V / 2.4A |
DIMENSIONS & WEIGHT
Dimensions (LxWxD): | 52.5 x 32.7 x 20.9cm |
Weight: | 29.5 kg |
WHAT'S IN THE BOX
1 x | B300K Expansion Battery |
1 x | Battery Expansion Cable (P090A) | 1 x | User Manual |
SKU:
bt_b300k |
How does the heating function work?
How does the heating function work?
- Your item will be shipped next business day.
- On average, items are delivered between 3 to 7 business days following shipping around Australia.
- Check out our shipping and delivery calculator above for more information.
- We can't ship products to PO Boxes, Parcel Lockers or Post Offices. We need to have an actual address to proceed with the order.
- Outbax offers a 48-month warranty on this product from the date of purchase unless otherwise stated. Outbax warrants its products against defects in materials and/or workmanship. This is further to your rights under Australian Consumer Law.
- Outbax products come with a 60-day money-back guarantee. You must contact us within 60 days of receiving the product and it must return in its original condition.
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