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Bluetti B300K2 Expansion Battery – 2,764.8Wh Capacity, LiFePO₄ Technology, Seamless Integration for Extended Power Supply
Expand your Bluetti AC300, AC500, or APEX 300 portable power stations with the Bluetti B300K2 Expansion Battery. Offering a robust 2,764.8Wh of additional energy capacity, this expansion battery is designed to meet the power demands of your daily life or act as a reliable backup during unexpected power outages. With advanced technology and versatile features, the B300K2 ensures a seamless, continuous power supply, whether you’re at home, on the road, or off the grid.
Designed as more than just a battery add-on, the B300K2 is a standalone power hub, capable of charging essential devices directly via its integrated USB-A port. Whether you're camping, experiencing a blackout, or powering equipment in remote areas, this expansion battery is your ultimate energy companion.
Key Features:
Massive Energy Capacity for Every Need: With a 2,764.8Wh capacity, the B300K2 provides substantial power support for both everyday needs and emergency situations, allowing you to run essential devices and keep your home or campsite comfortable.
Unmatched Battery Longevity with LiFePO₄ Technology: Enjoy over 4,000 life cycles with LiFePO₄technology, delivering a long lifespan, enhanced safety, and consistent performance, ensuring your power needs are met for years to come.
Effortless Integration for Seamless Compatibility: The B300K2 seamlessly connects with the AC300, AC500, and APEX 300 power stations, allowing you to expand your energy capacity up to 33,177.6Wh. Customize your setup easily as your power requirements grow.
Versatile Adaptability for Tailored Energy Solutions: The B300K2 is stackable with other B300 series models (B300, B300K, and B300S), offering flexibility for both home and outdoor use. Adapt your energy system to suit your specific needs, whether you're prepping for emergencies or powering off-grid adventures.
Built Tough with Superior Safety and Reliability: Constructed with a durable aluminum casing and featuring AI-BMS technology, the B300K2 is built to withstand tough environments. Its advanced cooling system and wireless components ensure safe and stable operation under any conditions.
Convenient USB-A Port for Essential Device Charging: The B300K2 includes a USB-A port, making it easy to charge phones, tablets, small appliances, and more, so you’re never caught without power for your essential devices.
What’s Included:
1 × Bluetti B300K2 Expansion Battery
1 × Battery Expansion Cable (CA90)
1 × P150D to P090D Cable
1 × User Manual
Specifications
Battery Specifications
Model
B300K
Battery Capacity
2,764.8Wh (51.2V, 54Ah)
Battery Type
LiFePO₄ (Lithium Iron Phosphate)
Cycle Life
4,000+ cycles (to 80% capacity)
Output Specifications
USB-A Output
12W Max., 5V / 2.4A
Total Capacity
2,764.8Wh
General Specifications
Weight
29.5kg (65.04lbs)
Dimensions (L×W×H)
52.5 × 32.7 × 20.9 cm (20.67 × 12.87 × 8.23 in)
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 (may reduce outside optimal temperatures)
Discharging Current
70A Max
Expansion Ports
2 × Ports, 58.4VDC Max., 90A Max
Compatibility
AC300, AC500, APEX 300
Why Buy From Us
Why Buy From Ecogrid Supply?
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Built for Energy Independence: Whether you’re powering a cabin, prepping for emergencies, or going off-grid, our products are selected for performance, reliability, and sustainable operation.