The Bluetti B300K2 Expansion Battery is a game-changing addition to your portable energy arsenal. Designed to deliver impressive performance and adaptability, this advanced battery enables you to scale your energy system effortlessly, providing the ultimate flexibility for both on-grid and off-grid applications. Whether you're preparing for emergencies, powering an off-grid lifestyle, or expanding your existing Bluetti setup, the B300K2 is the ideal solution.
At the heart of the Bluetti B300K2 lies a 2,764.8Wh capacity with Automotive-Grade LiFePO₄ (Lithium Iron Phosphate) chemistry, designed for durability and delivering 4,000+ charge cycles to 80% of original capacity. The battery integrates seamlessly with Bluetti power stations including AC200P L, AC200MAX, AC300, and AC500, allowing you to customize and scale your energy solution based on your needs.
Built with AI-BMS (Artificial Intelligence Battery Management System) technology for optimal performance and safety, the B300K2 features robust aluminium casing, an efficient cooling fan, and a convenient 12W USB-A port for charging smartphones and tablets. Ideal for camping, caravanning, emergency backup, and home use.
| Model | B300K |
| Battery Capacity | 2,764.8Wh (51.2V, 54Ah) |
| Chemistry | LiFePO₄ |
| Life Cycles (80% DOD) | 4,000+ |
| Length | 52.5 cm |
| Width | 32.7 cm |
| Height | 20.9 cm |
| Weight | 29.5 kg |
| Expansion Ports | 2 × (58.4VDC Max., 90A Max.) |
| USB-A Output | 12W Max. (5V / 2.4A) |
| Charging Temperature | 0°C to 40°C |
| Discharging Temperature | -20°C to 40°C |
| Max Charging Current | 60A |
| Warranty | 3 years (extendable to 4 years) |
| Battery | |
| Voltage | 51.2V |
| Ah (C20) | 54 |
| Weight (KG) | 29.5 |
| Cycles DOD 50% | 4000+ |
| Watt Hours | 2764.8 |
| Chemistry | LiFePO4 |
| Charge rate (A) | 60 |
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