Apex 300 vs. Elite 400: Choosing Power for Your Lifestyle and Budget

When you decide to invest in serious backup power, you enter a new level of energy freedom. You're looking beyond basic phone charging; you're looking at running air conditioners, refrigerators, and keeping your entire home operational during an outage.

But when comparing the Apex 300 and the Elite 400, you aren't choosing between a good product and a great product—you are choosing between two systems built for entirely different goals. The Apex 300 is a dedicated, stationary infrastructure hub built to scale, while the Elite 400 is a ready-to-roll mobile power tank engineered for immediate, high-value capacity.

Which one belongs in your home? It all comes down to whether you prioritize massive future scaling and high-voltage power, or superior base capacity, mobility, and immediate financial savings. Here is an honest breakdown of which system belongs in your life.

At a Glance: Stationary Powerhouse vs. Mobile Energy Tank

The primary difference between the Apex 300 and the Elite 400 comes down to output power versus mobility and initial capacity.

BLUETTI Apex 300: The Power Infrastructure Hub

The Apex 300 is not meant to be carried easily; it's designed to be the backbone of your energy system. It's for the user who demands ultimate performance, longevity, and the potential for massive future growth.

Power and Longevity First

The Apex 300's massive 3,840W continuous output is paired with a Dual Inverter that can supply both 120V and 240V AC power simultaneously. This feature is critical if you need to run large, high-voltage household appliances like a well pump, full-size electric oven, or even a full-size home air conditioning unit (especially when paired with a soft start device).

For sensitive electronics, the Apex 300 offers an unnoticeable transition with True 0ms UPS switchover, which is crucial for devices like desktop computers or CPAP machines that cannot tolerate even a flicker of power loss.

A System Designed to Grow (and Last)

If you foresee your power needs increasing, the Apex 300 follows a "Grows With You" philosophy. You start with the base 2,764.8Wh unit and can expand up to 19.4 kWh by adding B300K expansion batteries. If you link multiple Apex 300 units, the system can scale to a tremendous 58 kWh. This modular design makes it ideal for designing a customized home backup.

Perhaps its most impressive feature is its 17-year projected lifespan, driven by second-generation automotive-grade LiFePO₄ cells rated for 6,000+ charge cycles to 80% capacity. This longevity makes the Apex 300 a massive long-term investment.

A Note on Design: Because the Apex 300 is built as a highly specialized, component-based system, the base unit deliberately omits common portable features like built-in DC/USB ports, following an "unbundled" philosophy. You should plan to acquire the necessary add-on components for full functionality.

BLUETTI Elite 400: Mobility and Immediate Value

The Elite 400 belongs to the Elite series, which focuses on providing reliable, balanced, and compact energy solutions for home backup and outdoor exploration. This model excels in two critical areas: superior base capacity and physical mobility.

Power that Rolls with You

The Elite 400 is marketed specifically for its mobility, emphasizing that you can "Roll, lift, or pull with built-in wheels and handles for effortless mobility". This is a massive user advantage over the stationary Apex 300. If you need a power station large enough for crucial appliances but flexible enough to move around your home—say, powering tools in the garage during the day and moving to the bedroom for essential medical devices at night—the Elite 400 is ready to roll.

The Elite 400 is incredibly efficient for backup duty. While the Apex 300 is efficient at 18-20 W idle draw, the Elite 400 boasts an ultra-low 3 W standby consumption. This extreme efficiency is perfect when running only key loads—like your Wi-Fi router, refrigerator, or lighting—as it maximizes runtime and stretches the 3,840Wh battery much further during long outages.

The Financial Edge: Capacity and Tax Credit

For many buyers, the Elite 400 offers superior immediate value.

1. More Base Capacity: The Elite 400 provides 3,840Wh out of the box, significantly more capacity than the Apex 300's 2,764.8Wh base unit.
2. Tax Credit Eligibility: Crucially, the Elite 400's substantial base capacity (over 3 kWh) makes the standalone unit eligible for the 30% federal Residential Clean Energy Tax Credit. By contrast, the Apex 300 base unit (under 3 kWh) must be paired with an additional expansion battery (like the Apex 300 + B300K kit) to surpass that 3 kWh threshold and potentially qualify.

This difference means the Elite 400 is potentially a much cheaper system in the initial purchase for US customers seeking this credit, offering both capacity and mobility right out of the box.

How to Choose Your BLUETTI Partner

Choosing between these two depends entirely on your application: are you building a permanent power ecosystem that needs to handle high-voltage appliances, or do you need maximum capacity in a mobile, high-value package?

Choose the BLUETTI Apex 300 If...

• You need high-voltage 240V power. This is non-negotiable for running split-phase appliances like well pumps, clothes dryers, or charging heavy equipment.
• You plan for massive expansion. The Apex 300 is the clear winner for ultimate scale, designed to grow up to nearly 20 kWh, or even 58 kWh across linked units.
• You demand longevity and pure UPS. With 6,000+ cycles and True 0ms UPS switchover, it's an investment built to power sensitive systems for decades.
• Your unit will be permanently installed in an RV, cabin, or designated home backup area, not moved frequently.

Choose the BLUETTI Elite 400 If...

• Mobility is your top priority. If you need to roll, lift, or pull your backup power from room to room—a critical feature for using it wherever you need it most.
• You seek the maximum financial value. The Elite 400's base capacity (3,840Wh) makes the purchase eligible for the significant 30% federal Residential Clean Energy Tax Credit immediately.
• You need high capacity right now. It provides a greater initial battery capacity out of the box for essential backup power (up to 4 kWh).
• Your needs are covered by a 120V output, and you prioritize ultra-low standby draw (3W) and flexible charging options.

The Apex 300 is like building a custom, indestructible home network hub that can handle 24/7 demands. The Elite 400, by contrast, is like owning a powerful, ready-to-use power bank on wheels that offers instant deep-storage capacity and a financial bonus to boot. Both offer essential peace of mind, but they cater to very different lifestyles.

Conclusion: Your Power, Your Decision

The Apex 300 is the modular, commercial-grade server—it demands accessories and fixed installation, but gives you unmatched scalability, high voltage, and a 17-year lifespan. The Elite 400 is the powerful, ready-to-roll backup safe—it provides high capacity and major cost savings immediately, prioritizing flexible movement and extreme standby efficiency.

We recommend using the Help Me Choose tool to confirm the ideal configuration for your home or simply reaching out to our Customer Support team for further assistance. Whether you choose to "Start Simple, Scale Smart" with the Apex 300 or secure "Always-On Home Backup" with the Elite 400, you are investing in clean, reliable power with BLUETTI.