BLUETTI B300K Expansion Battery 2,764.8Wh High-Capacity Portable Power Backup

Description

The BLUETTI B300K Expansion Battery (2,764.8Wh) is the ultimate power solution for both everyday use and emergency backup. Featuring an automotive-grade LiFePO₄ battery, it ensures a safe, long-lasting power source with 4,000+ life cycles. Seamlessly compatible with BLUETTI AC200L, AC200MAX, AC300, and AC500 power stations, the B300K can expand your capacity to an impressive 33,177.6Wh when paired with the AC500. With a 3+1 years warranty, it guarantees reliable performance for years to come. Additionally, the B300K acts as a standalone power source with a USB-A port for charging your essential devices anytime, anywhere.

Key Features

Power Expansion for Any Need

The B300K adapts to any situation, whether for home backup during outages or off-grid adventures. Stack multiple B300K units or combine with B300 and B300S models for a tailored energy solution, ensuring you're always powered up.
Requires P150D to P090D cable for AC500 connection.

Versatile Compatibility for Expanding Power

The B300K easily integrates with AC200L, AC200MAX, AC300, and AC500 power stations, offering flexible energy scaling as your needs grow. Whether for home backup or off-grid adventures, the B300K is ready.
P090D to P150D cable required for AC500 connection (sold separately).

Built for Safety and Durability

The B300K features LiFePO₄ batteries and AI-BMS technology for enhanced safety and reliability. Its durable aluminum casing, advanced wireless components, and efficient cooling system ensure long-lasting performance, making it a trusted power source in any situation.

Rapid Charging for Convenience

Paired with AC300 or AC500, the B300K charges to 80% in just 45 minutes, ensuring minimal disruption to your work, activities, or emergencies—whether at home or on the go.

Standalone Power Hub with Versatile Performance

The B300K is more than an expansion battery—it's a power hub. With a USB-A port, it keeps essentials like smartphones, tablets, or fans charged, ensuring power is always within reach, whether at home, camping, or on the go.

Specifications

In The Box

Documents

• User Manual

FAQs:

Q1: Why doesn't the B300K drain all its power?
A: The B300K retains some energy to prevent overdischarging, which helps protect the battery’s lifespan.

Q2: Can I leave the battery uncharged after fully discharging?
A: No, recharge the B300K before it reaches 1%. Ensure it’s at least 10°C (50°F) before recharging.

Q3: Which BLUETTI power stations are compatible with B300K?
A: B300K works with AC200L, AC200MAX, AC300, and AC500. For AC500, use the P090D to P150D cable (sold separately).

Q4: Can I use the B300K alone?
A: Yes, it has a 12W USB-A port and can be used independently, but it requires an AC station for charging.

Q5: Does the B300K support power bank mode?
A: No.

Q6: How long does it take to charge the B300K to 80%?
A: Using a 30A cable with AC300/AC500, it charges to 80% in 45 minutes.

Q7: Can I monitor multiple battery packs when mixed with B300K?
A: Yes, using the BLUETTI app with AC300/AC500/AC200L/AC200MAX.

Q8: Can I use B300K as a UPS?
A: No.

Q9: Can I use solar panels or a car cigarette lighter to charge the B300K?
A: No, the B300K can only be charged via AC500/AC300/AC200L/AC200MAX.

Q10: Can I use B300K in sub-zero temperatures?
A: Charging range: 0-40°C (32-104℉); discharging range: -20 to 40°C (-4 to 104℉). Avoid charging in sub-zero temperatures.

Q11: How long can B300K run my device?
A: Running time = 2,764.8Wh × 90% × 90% ÷ device power. For a 100W bulb, it runs for approximately 22.4 hours.

Q12: Is B300K waterproof?
A: No, and avoid storing it in a humid environment.

Q13: Can I replace the built-in battery?
A: No, contact BLUETTI Customer Service for any battery issues.