Bluetti B300K Expansion Battery | 2,764.8Wh
Arrival Est ~ Jan 19–Jan 23
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You're order will leave our warehouse in 1-3 business days with an estimated arrival of: Jan 19 – Jan 23
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Power That Keeps Up With You – B300K Expansion Battery
Sick of half-baked power setups letting you down?
The B300K Expansion Battery smashes that worry out the park with 2,764.8Wh of serious juice and over 4,000 life cycles built to go the distance.
Whether you're off-grid, stuck in a blackout, or just want the backup muscle to keep the beers cold and the lights on, this little ripper’s got your back.
Built tough with automotive-grade LiFePO₄ cells and smart BMS tech, it charges fast and hooks up easily to plenty of units including the AC200L, AC300, or AC500.
Built to Last and Built for Legends – Bluetti B300K Battery
Ever wished you could stack your power like you stack your beers? Now you can.
The Bluetti B300K Battery doesn't just sit there looking pretty – it’s a real workhorse, with a massive lifespan and smart expansion options to keep your adventures rolling.
You can mix and match it with B300, B300S models, and pile up enough power to last longer than your average camping trip.
Plus, with a solid aluminium shell and advanced AI battery management, it’s engineered to cop a flogging and still come back for more.
Click Add to Cart now and make dead batteries one less thing you’ll have to think about.
Key Features
- Massive 2,764.8Wh capacity for serious power needs
- 4,000+ cycles for years of weekend getaways
- Automotive-grade LiFePO₄ battery for rugged reliability
- Fast charges up to 80% in 45 minutes with AC500
- Standalone USB-A port to top up essentials
- Expandable – link up to 16,588Wh with AC500
- Safe as houses with smart AI-BMS tech and tough build
- Comes with expansion cable and manual – ready to go
Bluetti B300K Specs
BATTERY INFO
- Capacity: 2,764.8Wh (51.2V, 54Ah)
- Type: LiFePO₄ (Lithium Iron Phosphate)
- Life Cycles: 4,000+ Cycles to 80% Original Capacity
OUTPUT
- USB-A Port: 12W Max., 5V / 2.4A
GENERAL
- Weight: Approx. 29.5kg (65.04lbs)
- Dimensions (L x W x D): 525 × 327 × 209mm (20.67 × 12.87 × 8.23in)
- Charging Temperature: 0°C to 40°C (32°F to 104°F)
- Discharging Temperature: -20°C to 40°C (-4°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)
- Working Humidity: 5% to 95%RH
- Charging Current: 60A Max. (Current may decrease outside specified temperatures)
- Discharging Current: 70A Max.
- Expansion Ports: 2 × 58.4VDC Max., 90A Max.
- Warranty: 4 Years
What's Included
Everything you need is included with your purchase from True Gear
- Bluetti B300K Expansion Battery
- Short Battery Expansion Cable (For APEX 300 - CA90)
- User Manual
- Warranty Card
- 4-Year Manufacturer Warranty
Download the Bluetti B300K manual
Looking for detailed information on the Bluetti B300K? Then check out the complete manual below.
Read Bluetti B300K reviews down below ↓