Bluetti Apex 300 + B300K2 Expansion Battery

Elevate your power strategy from simple preparedness to absolute energy autonomy with the Bluetti Apex 300 + B300K2 Expansion Battery bundle. This isn’t merely a portable power station; it is a scalable, high-capacity energy solution designed to meet the most demanding applications. By uniting the formidable Bluetti Apex 300 power station with an additional B300K2 expansion battery, you create a monolithic power source boasting a colossal 5.53kWh of usable capacity and a robust 3,840W AC output. This bundle is the definitive answer for homeowners seeking seamless whole-home backup, RV enthusiasts demanding long-term off-grid comfort, and pioneers building a life powered by sustainable renewable energy. This is the core of a system that doesn’t just supplement power, it replaces the grid.

Unmatched Capacity and Power 5.53kWh & 3,840W Output

The synergy between the Bluetti Apex 300 and the B300K2 battery transforms potential into relentless performance. This bundle delivers an immense combined capacity of 5.53kWh (5,529.6Wh), a figure that redefines what’s possible with a modular power station.

• Extended Runtime: Power your essentials for days, not just hours. Run a standard kitchen refrigerator (150W) for over 30 hours, a CPAP machine (50W) for more than 100 hours, or a full RV entertainment system for an entire weekend without a hint of anxiety.
• High-Demand Appliance Support: With a massive 3,840W output, equivalent to powering two full-size home kitchen circuits simultaneously, this bundle handles everything you can plug in. Operate high-wattage devices like air conditioners (1,500W), water pumps, power tools, microwave ovens, and electric kettles with ease, just as if you were connected to the grid.

This combination provides the raw power and endurance necessary for serious home backup and profound off-grid freedom.

A Power Ecosystem for Every Lifestyle Scalability to 19kWh

This bundle is the perfect starting point for building a custom power ecosystem. The Bluetti Apex 300 is renowned for its modular FlexPower system, and integrating the B300K2 is the first and most impactful step in scaling your energy reserves.

• From Core to Colossus: Begin with this powerful 5.53kWh foundation. The system’s design allows you to further expand your energy security by connecting additional B300 expansion batteries, scaling your total capacity all the way to a staggering 19kWh. This future-proof design means your investment is protected and can grow alongside your energy needs.
• Tailored Solutions: Whether your goal is to keep the basics running during a storm or to achieve complete energy independence for a large home or RV, this bundle provides the flexible foundation. It adapts to you, ensuring you never pay for more capacity than you need, yet always have the option to expand.

Whole-Home Backup Solutions Seamless and Automatic Protection

When the grid fails, your life shouldn’t. The Apex 300 + B300K2 bundle is engineered to provide peace of mind through robust, reliable backup power.

• Comprehensive Coverage: Move far beyond essential protection. With 5.53kWh at your disposal, you can keep your entire family comfortable and connected. This means powering refrigerators, freezers, lighting systems, WiFi routers, medical devices, and even heating/cooling systems through prolonged outages.
• Plug-and-Play Simplicity: Experience the luxury of whole-home backup without the complexity and cost of hardwired systems. The Bluetti power station ecosystem is designed for intuitive setup. Simply plug critical appliances into the unit, and during an outage, they will continue to run seamlessly. The system’s 20ms switchover time is so fast that it keeps sensitive electronics like CPAP machines and computers running without interruption.

Your Backup Power That Pays You Back Harness Renewable Energy

This system is a powerful financial investment that leverages renewable energy to reduce your utility bills and carbon footprint.

• Maximise Solar Savings: With the Apex 300’s ability to accept up to 4,000W of solar input (with the optional SolarX 4K regulator), you can rapidly recharge your 5.53kWh capacity using free sunlight. This allows you to offset peak utility rates, power your home with solar energy day and night, and achieve significant savings on your electricity bills.
• Energy Independence: By storing abundant solar energy, you drastically reduce your reliance on the unstable grid. This bundle empowers you to turn your home into a personal power plant, transforming sunlight into security and savings.

Multiple Ways to Recharge Ultimate Flexibility

Never be caught without a way to recharge your massive capacity. The Apex 300 supports the industry’s most versatile charging portfolio.

• TurboBoost AC Charging: Replenish your entire 5.53kWh system from zero to 80% in approximately 80 minutes and to full in just under 2 hours, thanks to the groundbreaking 2,990W+ AC charging.
• Super-Fast Solar Charging: With BLUETTI’s revolutionary SolarX 4K system, you can harness up to 4,000W of solar input, making recharging via sunlight incredibly fast and efficient, even for this large capacity.
• Generator & EV Charger Compatibility: Recharge at full speed (2,990W Max) from a backup generator or a Level 2 EV charging station, providing a reliable solution for rapid charging in any weather or scenario.

EnerBalance AI System & Military Durability: Engineered for Reliability

The advanced technology within the Bluetti Apex 300 ensures your investment is protected and will perform for years to come.

• Unprecedented Longevity: The premium LiFePO4 battery chemistry is rated for 6,000 charge cycles while retaining 80% of its original capacity. This translates to over 15 years of reliable daily use.
• Military-Grade Construction: The entire system is MIL-STD-810G certified, meaning it has been tested to withstand the stresses of vibration, shock, and extreme temperatures, ensuring durability whether it’s stationed in your garage or accompanying you on an adventure.
• Clean & Stable Power: The pure sine wave inverter and 20ms seamless transfer switch provide utility-grade power that is safe for all sensitive electronics, from smartphones to professional medical equipment.

Warranty: A 5-Year Promise of Peace of Mind

BLUETTI stands behind the quality and performance of the Apex 300 and its batteries. This bundle is protected by a robust 5-Year Warranty, offering you long-term confidence and ensuring your cornerstone of energy independence is built to last.

What’s In the Box?

Bluetti Apex 300 Portable Power Station, AC Charging Cable, Car Charging Cable, Grounding Screw, User Manual. Bluetti B300K2 Expansion Battery, P090A Battery Expansion Cable (800mm), Warranty card.​