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Power your home, RV, workshop, or off-grid setup with the BLUETTI Apex 300 + 2× B300K. This expandable portable power system combines the Apex 300 power station with two B300K LiFePO₄ expansion batteries for a substantial 8,294.4Wh total capacity and 3,840W continuous output.
Built for flexible 120V and 240V power, the Apex 300 can operate compatible 120V and 240V equipment simultaneously, even while charging. Its modular architecture also allows the system to grow as your power requirements increase, making it suitable for home backup, RV travel, off-grid living, outdoor applications, and emergency preparedness.
High-Capacity Modular Power
- 8,294.4Wh Total Capacity: Combines the Apex 300 with two B300K expansion batteries for extended runtime.
- 3,840W Continuous Output: Provides substantial AC power for compatible appliances, electronics, tools, and equipment.
- Up to 7,680W Lifting Power: Helps support compatible equipment with higher startup or temporary power requirements.
- LiFePO₄ Battery Technology: Uses EV-grade lithium iron phosphate battery cells designed for long-term durability and reliable operation.
- Expandable Architecture: Apex 300 systems can be expanded with additional compatible units and batteries as your power requirements grow.
120V & 240V Power Flexibility
- Dual-Voltage Output: Supports compatible 120V and 240V equipment from the same power system.
- Simultaneous 120V & 240V Operation: Designed to operate supported loads at both voltage levels at the same time.
- High-Load Compatibility: The system is designed for demanding applications including compatible HVAC equipment, tools, appliances, and RV equipment.
- 12kW Bypass Capability: Supports high-load applications when properly integrated with compatible equipment and installation accessories.
Reliable Home Backup & UPS Performance
- 0ms UPS Switching: Provides near-instantaneous backup power switching for supported applications.
- 20ms Switching Option: Additional switching behavior is available depending on operating configuration.
- Home Backup Integration: Can be integrated with compatible BLUETTI home power accessories for expanded backup capabilities.
- Extreme Weather Alerts: Compatible with BLUETTI app features designed to help prepare the system for potential power interruptions.
- Energy Monitoring: Monitor system operation, energy usage, and backup status through the BLUETTI app.
Flexible Solar & Generator Charging
- Solar Charging: The Apex 300 ecosystem can be paired with compatible BLUETTI solar equipment for renewable charging.
- Up to 4,000W Solar Input: Supported when paired with the BLUETTI SolarX 4K system.
- Up to 11.5kW Generator Charging: The system supports high-speed generator charging at compatible 120V/240V configurations.
- SolarX 4K Compatibility: A compatible SolarX 4K setup can provide up to 4kW of solar input.
- Multiple Charging Options: Recharge through compatible AC, solar, generator, and vehicle charging solutions.
Smart BLUETTI App Control
- Remote Monitoring: Monitor power usage, battery status, and system performance through the BLUETTI app.
- Smart Energy Management: Compatible app features can help manage charging, energy usage, and backup operation.
- Peak Load Shifting: Supported configurations can automatically charge using available lower-cost energy and provide stored power during higher-demand periods.
- OTA Updates: Compatible system functions can be updated through over-the-air software updates.
Built for Long-Term Use
- Up to 6,000 Cycles: BLUETTI rates the system for up to 6,000 cycles while retaining approximately 80% capacity under specified conditions.
- Efficient Power Management: The EnerBalance system and five-stage efficiency technology are designed to reduce idle power consumption.
- 20W Idle Consumption: Rated idle loss is as low as 20W under specified operating conditions.
- MIL-STD-810G Testing: The Apex 300 has been tested to military-standard environmental durability requirements.
- Modular Design: Expansion batteries can be added or configured as part of a larger compatible BLUETTI energy system.
Technical Specifications
| Brand | BLUETTI |
| Model | Apex 300 + 2× B300K |
| Total Battery Capacity | 8,294.4Wh |
| Apex 300 Base Capacity | 2,764.8Wh |
| B300K Expansion Batteries | 2 × B300K |
| Continuous Output | 3,840W |
| Lifting Power | Up to 7,680W |
| Battery Chemistry | LiFePO₄ |
| Output Voltage | 120V / 240V |
| UPS Switching | 0ms or 20ms depending on configuration |
| Solar Input | Up to 4,000W with compatible SolarX 4K system |
| Generator Input | Up to 11.5kW at compatible 120V/240V configurations |
| Maximum System Expansion | Up to 11.52kW output and 58kWh capacity with compatible configurations |
| Rated Battery Life | Up to 6,000 cycles to 80% capacity under specified conditions |
| Connectivity | BLUETTI App / Remote Monitoring |
What's Included
- 1 × BLUETTI Apex 300 Portable Power Station
- 2 × BLUETTI B300K Expansion Batteries
- 1 × AC Charging Cable
- 1 × Car Charging Cable
- 1 × Grounding Screw
- 2 × Battery Connection Cables
- 1 × User Manual
Ideal for Home Backup, RV & Off-Grid Power
The BLUETTI Apex 300 + 2× B300K is designed for users who need substantial portable energy storage with room to expand. Use it for home backup, RV travel, off-grid cabins, outdoor workspaces, emergency preparedness, and other applications requiring high-capacity portable power.
Important: The Apex 300 and B300K units are delivered separately. SolarX 4K, Hub A1, AT1, and other system accessories are not included unless specifically stated in the selected package. Actual runtime, charging speed, and available output depend on connected loads, charging sources, environmental conditions, and system configuration. The Apex 300 is not waterproof and should be kept dry during use.
