BLUETTI B300K + Charger 2 | 2764.8Wh LiFePO₄ Battery + 1200W Alternator & Solar Dual DC Charger

Comprehensive Overview of the BLUETTI B300K Battery Pack

The ultimate mobile power bundle: the BLUETTI B300K 2764.8Wh LiFePO₄ battery module paired with the world's first smart alternator energy hub — the Charger 2. Together, they deliver continuous, expandable power whether you're driving, camping, or living off-grid.

Key Features

• Simultaneous Alternator + Solar Charging: Charge from your car or solar panels, or both at once. No switching, no unplugging.
• Up to 1,200W Power: 13× faster than standard car outlets and 2× faster than Charger 1, keeping your power station full on the go.
• Continuous Power, Driving or Parked: Industry-first Battery Link tech delivers expandable power for fridges, lights, and DC panel.
• 12V/24V Devices Support: Up to 600W DC output via DC hub, no extra converters needed.
• Wide Compatibility: Works with all BLUETTI power stations and 95% of third-party models.
• Remote Control: Track charging, energy flow, and usage in real-time via Bluetooth or Wi-Fi with the BLUETTI app.
• Protected by Design: Built-in safeguards including temperature control, over-voltage, over-current, and low-voltage protection.

Tech Specs — BLUETTI Charger 2

OUTPUT

• CHG Port (Power Station Charging Output): 12V to 56V – 24A | 1,200W Max.
• DC PANEL Port (48V DC Power Output): 40–58.5V, 2.5A | Bypass 600W Max. (12V output requires DC Hub; total 600W shared across USB-A, USB-C, cigarette lighter, DC 5521, and 50A Anderson ports)
• BAT Port (Aux Battery Input/Output): 19.2V – 52A, 25.6V – 39A, 51.2V – 19.5A | 1,000W Max.
• Reverse Charging: 100W, 50/60 Hz

INPUT

• PV Input: 13V to 50V – 20A | 600W Max.
• ALT Port (Alternator Input/Output): 12.8V – 62.5A, 25.6V – 31.3A | 800W Max.

GENERAL

• Compatibility: All BLUETTI & 95% of third-party portable power stations
• Safety Protections: Short circuit, reverse polarity, overcurrent, over/under voltage
• Fuse: 75A
• Operating Temperature: -20°C to 60°C / 4°F to 140°F
• Storage Temperature: -20°C to 60°C / 4°F to 140°F
• Protection Grade: IP20
• Noise: 50dB Max.
• Weight: 1.59kg / 3.51 lbs
• Dimensions: 265 x 169 x 69.7 mm / 10.43 x 6.65 x 2.74 in
• Operating Altitude: <2,000 m (6,561 ft)
• Working Humidity: 10% to 90%
• Warranty: 2 Years

Battery Module — BLUETTI B300K

• Capacity: 2,764.8Wh
• Battery Type: LiFePO₄

What's in the Box

• Charger 2 x1
• B300K Battery Module x1
• User Manual x1
• 75A Fuse x1
• MC4 to XT60 Cable x1
• Self-Tapping Screws x6
• Car Battery Cable x1
• MC4 Input Cable x1
• Bidirectional Power Cable x1
• MC4 Output Cable x1

Warranty

2-Year Manufacturer Warranty. For support, visit: BLUETTI Support

Product Page: View on BLUETTI

Powerful Capacity and Advanced Battery Technology

The BLUETTI B300K battery pack offers an impressive 2764.8Wh capacity using advanced LiFePO₄ battery cells that deliver long-lasting, reliable power. This technology ensures enhanced safety, a longer life cycle, and consistent energy output, making it ideal for both everyday use and emergency backup scenarios. Whether powering essential electronics or entire off-grid setups, the BLUETTI B300K battery pack meets the high demand for sustainable and efficient energy storage solutions.

Dual Charging System for Maximum Flexibility

This battery pack comes equipped with a 1200W alternator and solar dual DC charger, providing versatile charging options for any environment. Users can recharge the BLUETTI B300K battery pack via solar panels or a vehicle alternator, optimizing off-grid energy harvesting or road trip power needs. This dual charging system enables rapid and eco-friendly power renewals, ensuring your devices stay powered whether you’re camping, traveling, or facing a power outage.

Durable Design and Easy Integration

Designed with portability and robustness in mind, the BLUETTI B300K battery pack features a compact, sturdy construction that integrates seamlessly with BLUETTI’s modular power stations and accessories. Its smart battery management system (BMS) protects against overcharge, over-discharge, and temperature extremes, ensuring safe operation. This makes it an excellent choice for users seeking a dependable, scalable energy storage solution with hassle-free setup and long-term performance.