BLUETTI EP900 + B500 Home Battery Backup | Energy Storage System
Whole-home grid-tie backup with solar integration. The BLUETTI EP900 is a premium whole-home energy storage system designed for reliable grid-tied backup and solar power integration. With up to 9,000W of continuous output and true 120V/240V split-phase support, it delivers stable, seamless power for modern homes during outages or grid instability. And with a fast 10ms automatic switchover, your essential appliances keep running without interruption.
Scalable battery capacity to match your home
The EP900 inverter pairs with B500 expansion batteries, so you can customize your total energy storage around household demand. Available configurations include:
- 2× B500: 9,920Wh (9.9kWh)
- 3× B500: 14,880Wh (14.9kWh)
- 4× B500: 19,840Wh (19.8kWh)
Each B500 module delivers 4,960Wh of LiFePO₄ energy storage with more than 3,500 charge cycles long-term reliability and consistent performance.
High power output for whole-home operation
The EP900 supplies up to 9,000W of continuous AC output, and a dual EP900 setup reaches up to 18,000W. That’s enough to run large household loads air conditioners, refrigerators, water pumps, lighting systems, and home electronics all at the same time.
Advanced solar input for maximum energy harvest
The system supports high-capacity solar charging with dual MPPT controllers:
- Max solar input: 9kW (with 4× B500), 7.5kW (with 3× B500), 5kW (with 2× B500)
- Dual MPPT channels: 3,000W + 6,000W
- MPPT voltage range: 150V–500V (max 550V)
The dual channels and wide voltage range deliver efficient solar performance across different panel layouts.
Built for outdoor and indoor installation
With an IP65 weather-resistant rating, the EP900 and B500 batteries are protected against dust and water exposure suitable for both indoor utility rooms and outdoor installations. Operating noise stays below 50dB for quiet performance even under heavy loads.
Smart control and monitoring
The system integrates with the BLUETTI mobile app over WiFi and Bluetooth, giving you real-time monitoring, power management, and full system control directly from your phone.
Long-life LiFePO₄ battery technology
The EP900 and B500 batteries use advanced LiFePO₄ cells rated for over 3,500 cycles to 80% capacity, offering higher safety, better thermal stability, and a longer service life than traditional battery systems.
Professional installation for seamless integration
Professional installation is required. The system includes a Smart Sub Panel for smooth integration with your home electrical system and safe automatic power switching during outages.
Key features
- 9,000W continuous output (18,000W with dual EP900)
- 120V/240V split-phase output
- 10ms automatic backup switchover
- LiFePO₄ batteries — 3,500+ cycles
- IP65 weather-resistant rating
- Under 50dB operation
- BLUETTI app control (WiFi/Bluetooth)
- 10-year warranty
Specifications
| Specification | Detail |
|---|---|
| Inverter Output | 9,000W continuous |
| Battery Type | LiFePO₄ (Lithium Iron Phosphate) |
| Cycle Life | 3,500+ cycles to 80% |
| Operating Temperature | -4°F to 122°F (-20°C to 50°C) |
| Protection Rating | IP65 |
| Noise Level | ≤50 dB(A) |
| Warranty | 10 Years |
What’s included
- EP900 Inverter Unit
- B500 Battery Module(s) (quantity varies by configuration)
- Smart Sub Panel
- Installation Hardware
- User Manual
FAQs
What is the EP900 + B500 system and how does it work?
It’s a whole-home battery backup system designed to store energy and power your home during outages. It integrates with solar panels and the grid for seamless energy supply, and its fast 10ms switchover keeps your appliances running without interruption.
Can the EP900 power an entire home during a blackout?
Yes. The EP900 delivers up to 9,000W of continuous output enough to run major appliances like air conditioners, refrigerators, lights, and electronics. A dual system reaches up to 18,000W for even higher demand, making it capable of full home backup.
How much battery capacity can I get with the B500 modules?
Each B500 provides 4,960Wh of storage, and you can scale with multiple units from 9.9kWh (2 batteries) up to 19.8kWh (4 batteries), letting you match the system to your energy needs.
Does the EP900 support solar panel integration?
Yes. The EP900 is fully solar-ready with dual MPPT controllers supporting up to 9kW of solar input, efficiently converting solar energy into stored power ideal for reducing grid dependence.
How fast does the EP900 switch during a power outage?
It features a rapid 10ms automatic switchover, so your essential appliances keep running without noticeable interruption for a seamless backup experience.
Is the EP900 suitable for outdoor installation?
Yes. The EP900 and B500 batteries carry an IP65 rating, making them resistant to dust and water. They can be installed both indoors and outdoors to suit different home setups.
How long does the EP900 battery system last?
The system uses LiFePO₄ battery technology with over 3,500 charge cycles to 80% capacity, ensuring long-term durability and years of consistent, reliable use.
Do I need professional installation for the EP900 system?
Yes. Professional installation is required to safely integrate the system with your home’s electrical setup. It includes a Smart Sub Panel for automatic switching and efficient energy management, ensuring safety and optimal performance.
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