Bluetti AC300+B300K Battery Pack

BLUETTI AC300 + B300K HOME BATTERY BACKUP SYSTEM

The Ultimate Modular Power Solution for Home and Adventure

The BLUETTI AC300 paired with the B300K expansion battery represents the pinnacle of modular energy storage. Unlike traditional portable power stations, the AC300 is a 100% modular head unit—it does not have an internal battery, allowing you to customize your capacity by connecting up to four B300K units. This specific combo delivers a massive 3,000W pure sine wave inverter and 2,764.8Wh of high-end LiFePO4 storage. Whether you are backing up critical home appliances during a blackout, powering a high-demand off-grid cabin, or running a professional mobile workshop, this system provides the reliability and scale of a fixed home installation with the flexibility of a portable unit.

Key Features

• Customizable Modular Design: The AC300 “brain” allows you to scale your power. By adding up to four B300K or B300 units, you can achieve a staggering total capacity of over 12kWh, enough to power an average household for days.

• 3,000W Heavy-Duty Inverter: With a 3,000W continuous output (and a 6,000W surge), this system can easily run high-drain appliances that smaller units cannot, including air conditioners, refrigerators, space heaters, and power tools.

• Ultra-Durable LiFePO4 Chemistry: The B300K utilizes Lithium Iron Phosphate (LiFePO4) cells, known for their safety and longevity. It is rated for 3,500+ cycles to 80%, meaning it can be used daily for nearly a decade while maintaining peak performance.

• High-Speed Dual Charging: The system supports a massive 5,400W max input rate when combining AC (wall) charging with solar. You can recharge the B300K battery from 0% to 80% in under 1.5 hours when utilizing full dual-charging capabilities.

• Advanced 2,400W Solar Input: For the ultimate off-grid setup, the AC300 features a built-in MPPT controller that accepts up to 2,400W of solar power. This allows you to achieve total energy independence in sunny conditions.

• 24/7 UPS Home Backup: With the appropriate home integration kit, the AC300 acts as a Uninterruptible Power Supply (UPS). It detects grid failure instantly and switches to battery power in less than 20ms, protecting sensitive electronics and keeping your lights on.

• Smart App Control: Monitor your energy flow, check battery health, and adjust charging speeds in real-time via the BLUETTI App (Bluetooth/Wi-Fi).

Technical Specifications