BLUETTI Apex 300 + 2*B300K Expansion Batteries | Home Battery Backup
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Need long-lasting home backup power that can grow with you? The BLUETTI Apex 300 + 2*B300K Expansion Batteries has you covered
The BLUETTI Apex 300 + 2*B300K Expansion Batteries | Home Battery Backup is built for households that want reliable power today and flexibility for tomorrow. With support for up to 4,000W of solar input, the Apex 300 helps you turn sunshine into real savings and reduce energy bills quickly. In as little as two years, the system can pay for itself, leaving you with ongoing savings after that.
By pairing the Apex 300 with two B300K Expansion Batteries, you get increased storage straight out of the box. The modular design means you can start with this setup and expand later, connecting multiple Apex units and up to 18 batteries. This gives you the freedom to scale all the way up to 11.52kW output and 58kWh capacity without complicated upgrades or costly rewiring.
Key Features of the Apex 300 + 2*B300K Expansion Batteries
- World's smartest off-grid portable power solution
- Super scalable from 2,764.8Wh to 58kWh capacity and 3,840W to 11.52kW output
- 2nd-gen automotive-grade LiFePO₄ battery built to last 17 years
- Pays for itself in as little as 2 years
- Real-time Extreme Weather Alerts via the BLUETTI App
- Plug-and-play setup with instant 20ms UPS switchover
- Ultra-low self-consumption, 2-3x more efficient than competitors
- Supports up to 11.52kW generator charging at 230V
- Up to 19.2kW solar charging using SolarX 4K(Sold Separately)
Complete Energy Systems for How You Live
Home Battery System
From a simple plug-in setup to full-home battery backup, build the system that matches your home's size and energy needs.
RV & Van Life Power
From charging devices to running small appliances, enjoy home-like comfort with plug-and-play setups built for life on the road.
True Off-Grid Freedom
Store solar energy, run essentials, and stay connected — all with a setup that's easy to expand and customize for your off-grid lifestyle.
Find Your Ideal Home Backup Solution
Essential Protection
Keep the basics running when the grid goes down: fridge, lights, WiFi, and more. Quick plug-and-play setup for instant peace of mind.
Whole-Home Battery Backup
Run high-demand appliances through long outages with 7,680W of reliable power. No hardwiring, just plug in and enjoy seamless, automatic backup.
Self-Financing Home Power Solution
Engineered to Last, Optimized to Perform
Quick Recharge from Any Source
Solar Charging
Get up to 80% in just 55 minutes, and a full charge in 75 minutes with 2,400W of solar power. With SolarX 4K, enjoy ultra-fast solar replenishment, reaching up to 30,000W.*
* Requires 3 Apex 300 units and 3 SolarX 4K units.
Note: Data tested by BLUETTI Labs. Actual charging times may vary.
Generator Charging
When solar power isn't an option, use a generator to fully charge your Apex 300 in 65 minutes with 3,450W of power. Stay ready no matter the conditions.
Note: Data tested by BLUETTI Labs. Actual charging times may vary.
TurboBoost AC Charging
Need a quick boost? Enable Turbo Charging and get 80% in just 45 minutes, and a full charge in 70 minutes — all using just one standard home wall outlet.
Note: Data tested by BLUETTI Labs. Actual charging times may vary.
Charge on the Go
Harness your alternator's excess power — no waste, no impact on fuel or engine performance. Use 560W to fully charge in 5.5 hours. Add solar, and you can charge up to 1,760W, reaching full power in just 1.8 hours.
Note: Data tested by BLUETTI Labs. Actual charging times may vary.
Premium High-Speed Solar Charging
Apex 300 + B300K
Fully charges in just 1.9 hours with 4,000W solar power, giving you quick access to energy for everyday devices like lights, small appliances, and electronics.
Note: Data tested by BLUETTI Labs. Actual charging times may vary.
2/Apex 300 + 4/B300K + 2/SolarX 4K
Powers up in 2.0 hours with 8,000W solar power, offering reliable energy for larger appliances, tools, and extended use — ideal for RVs or off-grid living.
Note: Data tested by BLUETTI Labs. Actual charging times may vary.
3/Apex 300 + 9/B300K + 3/SolarX 4K
Reaches full power in just 1.6 hours, providing ample energy for heavy-duty devices like air conditioners, refrigerators, or even home backup systems.
Note: Data tested by BLUETTI Labs. Actual charging times may vary.
Seamless Energy Control with BLUETTI App
Managing your energy is simple with the BLUETTI app. You can monitor power usage in real time, track savings, and receive early alerts before outages hit. AI-powered features and fast updates keep your system running efficiently, while remote access lets you stay in control wherever you are.
Durable Build, Efficient Operation
Built for long-term use, the Apex 300 + 2*B300K Expansion Batteries uses the EnerBalance AI system to deliver up to 6,000 cycles with 80 percent capacity retention. With ultra low idle power loss, fast 20ms switching for sensitive devices, and military-grade durability testing, this system is designed to keep your home powered and protected for years to come.
Apex 300 + 2*B300K Expansion Batteries Specifications
What's in the Box of Apex 300 + 2*B300K Expansion Batteries?
